CN107655180B - Operation control method, operation control device and multi-connected air conditioner system - Google Patents
Operation control method, operation control device and multi-connected air conditioner system Download PDFInfo
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- CN107655180B CN107655180B CN201711127751.XA CN201711127751A CN107655180B CN 107655180 B CN107655180 B CN 107655180B CN 201711127751 A CN201711127751 A CN 201711127751A CN 107655180 B CN107655180 B CN 107655180B
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Abstract
The invention provides an operation control method, an operation control device and a multi-split air conditioner system, wherein the operation control method comprises the following steps: determining the sum of the output refrigerating capacities required by all the indoor units entering the refrigerating operation mode, and simultaneously determining the rated output refrigerating capacity of the outdoor unit; detecting the operating environment temperature of any indoor unit; and regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature. By the technical scheme, the stability and the safety of the operation of the outdoor unit are improved, the possibility of overload operation of the outdoor unit is reduced, indoor refrigeration requirements are met, and user experience is improved.
Description
Technical Field
The present invention relates to a compressor control method, and more particularly, to an operation control method, an operation control device, and a multi-connected air conditioner system.
Background
The multi-connected air conditioner system generally includes a plurality of indoor units and an outdoor unit, and if the refrigeration demands of the plurality of indoor units are all high, the outdoor unit may be operated in an overload state, that is, the winding temperature of the compressor may be too high, which may cause a series of air conditioner failures and affect the user experience.
In the related art, in order to alleviate the overload condition of the outdoor unit, the operation of the indoor units needs to be controlled to stop so as to reduce the demand on the cooling capacity, when the outdoor unit is detected to have too high indoor environment temperature and the corresponding indoor unit is opened again, the outdoor unit may still be in an overload state, and the refrigeration demand of the indoor environment still cannot be met, which seriously affects the user experience.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the present invention to provide an operation control method.
Another object of the present invention is to provide an operation control device.
Another object of the present invention is to provide a multi-connected air conditioner system.
In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided an operation control method including: determining the sum of the output refrigerating capacities required by all the indoor units entering the refrigerating operation mode, and simultaneously determining the rated output refrigerating capacity of the outdoor unit; detecting the operating environment temperature of any indoor unit; and regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature.
In the technical scheme, the multi-connected air conditioner system comprises a plurality of indoor units and an outdoor unit, when all the indoor units operate in a refrigeration mode, the sum of the output refrigerating capacity required by all the indoor units is compared with the rated output refrigerating capacity of the outdoor unit, whether the outdoor unit is in a full-load operation state is judged, whether the indoor unit needs to be closed to reduce the load of the outdoor unit is further judged, the stability and the safety of the operation of the outdoor unit are improved, the service life of the outdoor unit is prolonged, whether the indoor unit can be closed is judged through the operation environment temperature of the indoor unit, the intelligent control of the indoor unit is realized, the load of the outdoor unit is effectively reduced, the operation environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
The required output refrigerating capacity is the refrigerating capacity output by the outdoor unit to meet the indoor heat exchange requirement, and the required output refrigerating capacity mainly depends on the indoor environment temperature and the rotating speed of the indoor fan.
In any of the above technical solutions, preferably, the operation mode is a stop operation of the indoor unit or a cooling operation mode of the indoor unit.
In the technical scheme, the operation mode of any indoor unit is regulated and controlled through the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operating environment temperature, and when the outdoor unit is judged to be in a full-load state, any indoor unit is controlled to be closed, so that the load of the outdoor unit is reduced, and the stability and the safety of the operation of the outdoor unit are improved; when the outdoor unit is judged not to be at full load and the operation environment temperature of the indoor unit is higher, the indoor unit is controlled to enter a refrigeration operation mode, the operation environment temperature is reduced, and user experience is improved.
In any of the above technical solutions, preferably, the adjusting and controlling of the operation mode of any indoor unit according to the sum of the required output cooling capacity, the rated output cooling capacity, and the operation environment temperature specifically includes: calculating the product of the rated output refrigerating capacity and a preset overload coefficient, and recording the product as the overload output refrigerating capacity; judging whether the sum of the required output refrigerating capacity is larger than the overload output refrigerating capacity or not; when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit; the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to the preset environment temperature one by one according to the sequence of the operation environment temperature from low to high; and when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running.
In the technical scheme, whether the sum of required output refrigerating capacities is larger than the overload output refrigerating capacity or not is judged, the overload output refrigerating capacity is the maximum output refrigerating capacity which can be borne by the outdoor unit, the output refrigerating capacity corresponds to the sum of the required output refrigerating capacities of the indoor units, when the sum of the required output refrigerating capacities is larger than the overload output refrigerating capacity, the operation environment temperature of any indoor unit is determined and compared with the preset environment temperature, whether the indoor unit can stop operation or not is further judged, and if the temperature of the indoor unit is smaller than or equal to the preset environment temperature, the indoor unit is controlled to stop operation, and the load of the outdoor unit is reduced.
The method comprises the steps of arranging the indoor units in sequence from low to high according to the operating environment temperatures of the indoor units, judging whether the operating environment temperatures of the indoor units are less than or equal to a preset environment temperature one by one, and controlling the operated indoor units not to change the operating mode if the lowest operating environment temperature is greater than the preset environment temperature.
In addition, the overload output refrigerating capacity is the product of the rated output refrigerating capacity and the preset overload coefficient, and if the sum of the required output refrigerating capacity is less than or equal to the overload output refrigerating capacity, all indoor units are controlled to normally operate.
In any of the above technical solutions, preferably, when it is determined that the sum of the required output cooling capacities is smaller than the overload output cooling capacity, it is detected whether an operation ambient temperature of the indoor unit that stops operating is smaller than or equal to a preset ambient temperature; and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
According to the technical scheme, after the indoor units are closed due to full load, the sum of the required output refrigerating capacity and the overload output refrigerating capacity are continuously compared, and when the sum of the required output refrigerating capacity is judged to be smaller than the overload output refrigerating capacity, the indoor units which are stopped to run are controlled to enter a refrigerating running mode one by one according to the sequence that the running environment temperature of the indoor units which are stopped to run is from high to low, so that the running environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
For example, when the sum of the required output refrigerating capacities is judged to be larger than the overload output refrigerating capacity, the preset operation environment temperature is 25 ℃, the operation environment temperature of the first indoor unit is 23 ℃, the operation environment temperature of the second indoor unit is 24 ℃, the operation environment temperature of the third indoor unit is 25 ℃, the operation environment temperature of the fourth indoor unit is 26 ℃, after the first indoor unit is closed, the sum of the required output refrigerating capacities is still larger than the overload output refrigerating capacity, the second indoor unit is closed until the sum of the required output refrigerating capacities is smaller than the overload output refrigerating capacity, the multi-connected air conditioner system is operated for a period of time, the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, at the moment, the operation environment temperature of the first indoor unit is 28 ℃, the operation environment temperature of the second indoor unit is 25 ℃, the operation environment temperature of the third indoor unit is 26 ℃, the operation environment temperature of the fourth indoor unit, the first indoor unit is controlled to enter the refrigeration mode first, and the third indoor unit is controlled to enter the refrigeration mode first if the sum of the required output refrigerating capacity is judged to be still smaller than the overload output refrigerating capacity.
In any of the above technical solutions, preferably, the fan speed of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the rotating speed of a fan, the air outlet temperature and the like, when the rotating speed of the fan of the indoor unit rises, the refrigerating capacity of the indoor unit is increased, the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the rotating speed of the fan rises, the required output refrigerating capacity of the indoor unit is increased, and namely the rotating speed of the fan of the indoor unit is positively correlated with the required output refrigerating capacity.
In any of the above technical solutions, preferably, the operating environment temperature of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the air speed, the air outlet temperature and the like, when the operating environment temperature of the indoor unit rises, the air outlet temperature of the indoor unit needs to be reduced so as to increase the refrigerating capacity of the indoor unit, and the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the operating environment temperature of the indoor unit rises, the required output refrigerating capacity of the indoor unit increases, namely the operating environment temperature of the indoor unit is positively correlated with the required output refrigerating capacity.
According to an aspect of the second aspect of the present invention, there is provided an operation control device including: the determining unit is used for determining the sum of the output refrigerating capacities required by all the indoor units entering the refrigerating operation mode and determining the rated output refrigerating capacity of the outdoor unit; the detection unit is used for detecting the operating environment temperature of any indoor unit; and the regulating and controlling unit is used for regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature.
In the technical scheme, the multi-connected air conditioner system comprises a plurality of indoor units and an outdoor unit, when all the indoor units operate in a refrigeration mode, the sum of the output refrigerating capacity required by all the indoor units is compared with the rated output refrigerating capacity of the outdoor unit, whether the outdoor unit is in a full-load operation state is judged, whether the indoor unit needs to be closed to reduce the load of the outdoor unit is further judged, the stability and the safety of the operation of the outdoor unit are improved, the service life of the outdoor unit is prolonged, whether the indoor unit can be closed is judged through the operation environment temperature of the indoor unit, the intelligent control of the indoor unit is realized, the load of the outdoor unit is effectively reduced, the operation environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
The required output refrigerating capacity is the refrigerating capacity output by the outdoor unit to meet the indoor heat exchange requirement, and the required output refrigerating capacity mainly depends on the indoor environment temperature and the rotating speed of the indoor fan.
In any of the above technical solutions, preferably, the operation mode is a stop operation of the indoor unit or a cooling operation mode of the indoor unit.
In the technical scheme, the operation mode of any indoor unit is regulated and controlled through the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operating environment temperature, and when the outdoor unit is judged to be in a full-load state, any indoor unit is controlled to be closed, so that the load of the outdoor unit is reduced, and the stability and the safety of the operation of the outdoor unit are improved; when the outdoor unit is judged not to be at full load and the operation environment temperature of the indoor unit is higher, the indoor unit is controlled to enter a refrigeration operation mode, the operation environment temperature is reduced, and user experience is improved.
In any one of the above technical solutions, preferably, the operation control device further includes: the calculating unit is used for calculating the product of the rated output refrigerating capacity and a preset overload coefficient and recording the product as the overload output refrigerating capacity; the judging unit is used for judging whether the sum of the required output refrigerating capacity is larger than the overload output refrigerating capacity or not; the judging unit is further configured to: when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit; the judging unit is further configured to: the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to the preset environment temperature one by one according to the sequence of the operation environment temperature from low to high; the judging unit is further configured to: and when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running.
In the technical scheme, whether the sum of required output refrigerating capacities is larger than the overload output refrigerating capacity or not is judged, the overload output refrigerating capacity is the maximum output refrigerating capacity which can be borne by the outdoor unit, the output refrigerating capacity corresponds to the sum of the required output refrigerating capacities of the indoor units, when the sum of the required output refrigerating capacities is larger than the overload output refrigerating capacity, the operation environment temperature of any indoor unit is determined and compared with the preset environment temperature, whether the indoor unit can stop operation or not is further judged, and if the temperature of the indoor unit is smaller than or equal to the preset environment temperature, the indoor unit is controlled to stop operation, and the load of the outdoor unit is reduced.
The method comprises the steps of arranging the indoor units in sequence from low to high according to the operating environment temperatures of the indoor units, judging whether the operating environment temperatures of the indoor units are less than or equal to a preset environment temperature one by one, and controlling the operated indoor units not to change the operating mode if the lowest operating environment temperature is greater than the preset environment temperature.
In addition, the overload output refrigerating capacity is the product of the rated output refrigerating capacity and the preset overload coefficient, and if the sum of the required output refrigerating capacity is less than or equal to the overload output refrigerating capacity, all indoor units are controlled to normally operate.
In any one of the above technical solutions, preferably, the determining unit is further configured to: when the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, whether the running environment temperature of the indoor unit which stops running is smaller than or equal to the preset environment temperature is detected; the judging unit is further configured to: and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
According to the technical scheme, after the indoor units are closed due to full load, the sum of the required output refrigerating capacity and the overload output refrigerating capacity are continuously compared, and when the sum of the required output refrigerating capacity is judged to be smaller than the overload output refrigerating capacity, the indoor units which are stopped to run are controlled to enter a refrigerating running mode one by one according to the sequence that the running environment temperature of the indoor units which are stopped to run is from high to low, so that the running environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
For example, when the sum of the required output refrigerating capacities is judged to be larger than the overload output refrigerating capacity, the preset operation environment temperature is 25 ℃, the operation environment temperature of the first indoor unit is 23 ℃, the operation environment temperature of the second indoor unit is 24 ℃, the operation environment temperature of the third indoor unit is 25 ℃, the operation environment temperature of the fourth indoor unit is 26 ℃, after the first indoor unit is closed, the sum of the required output refrigerating capacities is still larger than the overload output refrigerating capacity, the second indoor unit is closed until the sum of the required output refrigerating capacities is smaller than the overload output refrigerating capacity, the multi-connected air conditioner system is operated for a period of time, the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, at the moment, the operation environment temperature of the first indoor unit is 28 ℃, the operation environment temperature of the second indoor unit is 25 ℃, the operation environment temperature of the third indoor unit is 26 ℃, the operation environment temperature of the fourth indoor unit, the first indoor unit is controlled to enter the refrigeration mode first, and the third indoor unit is controlled to enter the refrigeration mode first if the sum of the required output refrigerating capacity is judged to be still smaller than the overload output refrigerating capacity.
In any of the above technical solutions, preferably, the fan speed of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the rotating speed of a fan, the air outlet temperature and the like, when the rotating speed of the fan of the indoor unit rises, the refrigerating capacity of the indoor unit is increased, the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the rotating speed of the fan rises, the required output refrigerating capacity of the indoor unit is increased, and namely the rotating speed of the fan of the indoor unit is positively correlated with the required output refrigerating capacity.
In any of the above technical solutions, preferably, the operating environment temperature of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the air speed, the air outlet temperature and the like, when the operating environment temperature of the indoor unit rises, the air outlet temperature of the indoor unit needs to be reduced so as to increase the refrigerating capacity of the indoor unit, and the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the operating environment temperature of the indoor unit rises, the required output refrigerating capacity of the indoor unit increases, namely the operating environment temperature of the indoor unit is positively correlated with the required output refrigerating capacity.
According to a third aspect of the present invention, there is provided a multi-connected air conditioner system, comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor implements the steps of the operation control method defined in any one of the above aspects when executing the computer program; and/or comprises the operation control device defined in any one of the above technical solutions.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic flow diagram of an operation control method according to an embodiment of the invention;
FIG. 2 shows a schematic block diagram of an operation control device according to an embodiment of the present invention;
FIG. 3 illustrates a schematic block diagram of a multi-up air conditioner system according to one embodiment of the present invention;
fig. 4 shows a schematic flow diagram of an operation control method according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a schematic flow diagram of an operation control method according to an embodiment of the invention.
As shown in fig. 1, an operation control method according to an embodiment of the present invention includes: s102, determining the sum of output refrigerating capacities required by all indoor units entering a refrigerating operation mode, and simultaneously determining the rated output refrigerating capacity of the outdoor unit; s104, detecting the operating environment temperature of any indoor unit; and S106, regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature.
In the technical scheme, the multi-connected air conditioner system comprises a plurality of indoor units and an outdoor unit, when all the indoor units operate in a refrigeration mode, the sum of the output refrigerating capacity required by all the indoor units is compared with the rated output refrigerating capacity of the outdoor unit, whether the outdoor unit is in a full-load operation state is judged, whether the indoor unit needs to be closed to reduce the load of the outdoor unit is further judged, the stability and the safety of the operation of the outdoor unit are improved, the service life of the outdoor unit is prolonged, whether the indoor unit can be closed is judged through the operation environment temperature of the indoor unit, the intelligent control of the indoor unit is realized, the load of the outdoor unit is effectively reduced, the operation environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
The required output refrigerating capacity is the refrigerating capacity output by the outdoor unit to meet the indoor heat exchange requirement, and the required output refrigerating capacity mainly depends on the indoor environment temperature and the rotating speed of the indoor fan.
In any of the above technical solutions, preferably, the operation mode is a stop operation of the indoor unit or a cooling operation mode of the indoor unit.
In the technical scheme, the operation mode of any indoor unit is regulated and controlled through the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operating environment temperature, and when the outdoor unit is judged to be in a full-load state, any indoor unit is controlled to be closed, so that the load of the outdoor unit is reduced, and the stability and the safety of the operation of the outdoor unit are improved; when the outdoor unit is judged not to be at full load and the operation environment temperature of the indoor unit is higher, the indoor unit is controlled to enter a refrigeration operation mode, the operation environment temperature is reduced, and user experience is improved.
In any of the above technical solutions, preferably, the adjusting and controlling of the operation mode of any indoor unit according to the sum of the required output cooling capacity, the rated output cooling capacity, and the operation environment temperature specifically includes: calculating the product of the rated output refrigerating capacity and a preset overload coefficient, and recording the product as the overload output refrigerating capacity; judging whether the sum of the required output refrigerating capacity is larger than the overload output refrigerating capacity or not; when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit; the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to the preset environment temperature one by one according to the sequence of the operation environment temperature from low to high; and when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running.
In the technical scheme, whether the sum of required output refrigerating capacities is larger than the overload output refrigerating capacity or not is judged, the overload output refrigerating capacity is the maximum output refrigerating capacity which can be borne by the outdoor unit, the output refrigerating capacity corresponds to the sum of the required output refrigerating capacities of the indoor units, when the sum of the required output refrigerating capacities is larger than the overload output refrigerating capacity, the operation environment temperature of any indoor unit is determined and compared with the preset environment temperature, whether the indoor unit can stop operation or not is further judged, and if the temperature of the indoor unit is smaller than or equal to the preset environment temperature, the indoor unit is controlled to stop operation, and the load of the outdoor unit is reduced.
The method comprises the steps of arranging the indoor units in sequence from low to high according to the operating environment temperatures of the indoor units, judging whether the operating environment temperatures of the indoor units are less than or equal to a preset environment temperature one by one, and controlling the operated indoor units not to change the operating mode if the lowest operating environment temperature is greater than the preset environment temperature.
In addition, the overload output refrigerating capacity is the product of the rated output refrigerating capacity and the preset overload coefficient, and if the sum of the required output refrigerating capacity is less than or equal to the overload output refrigerating capacity, all indoor units are controlled to normally operate.
In any of the above technical solutions, preferably, when it is determined that the sum of the required output cooling capacities is smaller than the overload output cooling capacity, it is detected whether an operation ambient temperature of the indoor unit that stops operating is smaller than or equal to a preset ambient temperature; and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
According to the technical scheme, after the indoor units are closed due to full load, the sum of the required output refrigerating capacity and the overload output refrigerating capacity are continuously compared, and when the sum of the required output refrigerating capacity is judged to be smaller than the overload output refrigerating capacity, the indoor units which are stopped to run are controlled to enter a refrigerating running mode one by one according to the sequence that the running environment temperature of the indoor units which are stopped to run is from high to low, so that the running environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
For example, when the sum of the required output refrigerating capacities is judged to be larger than the overload output refrigerating capacity, the preset operation environment temperature is 25 ℃, the operation environment temperature of the first indoor unit is 23 ℃, the operation environment temperature of the second indoor unit is 24 ℃, the operation environment temperature of the third indoor unit is 25 ℃, the operation environment temperature of the fourth indoor unit is 26 ℃, after the first indoor unit is closed, the sum of the required output refrigerating capacities is still larger than the overload output refrigerating capacity, the second indoor unit is closed until the sum of the required output refrigerating capacities is smaller than the overload output refrigerating capacity, the multi-connected air conditioner system is operated for a period of time, the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, at the moment, the operation environment temperature of the first indoor unit is 28 ℃, the operation environment temperature of the second indoor unit is 25 ℃, the operation environment temperature of the third indoor unit is 26 ℃, the operation environment temperature of the fourth indoor unit, the first indoor unit is controlled to enter the refrigeration mode first, and the third indoor unit is controlled to enter the refrigeration mode first if the sum of the required output refrigerating capacity is judged to be still smaller than the overload output refrigerating capacity.
In any of the above technical solutions, preferably, the fan speed of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the rotating speed of a fan, the air outlet temperature and the like, when the rotating speed of the fan of the indoor unit rises, the refrigerating capacity of the indoor unit is increased, the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the rotating speed of the fan rises, the required output refrigerating capacity of the indoor unit is increased, and namely the rotating speed of the fan of the indoor unit is positively correlated with the required output refrigerating capacity.
In any of the above technical solutions, preferably, the operating environment temperature of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the air speed, the air outlet temperature and the like, when the operating environment temperature of the indoor unit rises, the air outlet temperature of the indoor unit needs to be reduced so as to increase the refrigerating capacity of the indoor unit, and the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the operating environment temperature of the indoor unit rises, the required output refrigerating capacity of the indoor unit increases, namely the operating environment temperature of the indoor unit is positively correlated with the required output refrigerating capacity.
Fig. 2 shows a schematic block diagram of an operation control device 200 according to an embodiment of the present invention.
As shown in fig. 2, the operation control device 200 according to the embodiment of the present invention includes: a determining unit 202, configured to determine a sum of output cooling capacities required by all indoor units entering the cooling operation mode, and determine a rated output cooling capacity of the outdoor unit; a detection unit 204 for detecting an operating environment temperature of any indoor unit; and the regulating unit 206 is configured to regulate and control an operation mode of any indoor unit according to the sum of the required output cooling capacity, the rated output cooling capacity, and the operating environment temperature.
In the technical scheme, the multi-connected air conditioner system comprises a plurality of indoor units and an outdoor unit, when all the indoor units operate in a refrigeration mode, the sum of the output refrigerating capacity required by all the indoor units is compared with the rated output refrigerating capacity of the outdoor unit, whether the outdoor unit is in a full-load operation state is judged, whether the indoor unit needs to be closed to reduce the load of the outdoor unit is further judged, the stability and the safety of the operation of the outdoor unit are improved, the service life of the outdoor unit is prolonged, whether the indoor unit can be closed is judged through the operation environment temperature of the indoor unit, the intelligent control of the indoor unit is realized, the load of the outdoor unit is effectively reduced, the operation environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
The required output refrigerating capacity is the refrigerating capacity output by the outdoor unit to meet the indoor heat exchange requirement, and the required output refrigerating capacity mainly depends on the indoor environment temperature and the rotating speed of the indoor fan.
In any of the above technical solutions, preferably, the operation mode is a stop operation of the indoor unit or a cooling operation mode of the indoor unit.
In the technical scheme, the operation mode of any indoor unit is regulated and controlled through the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operating environment temperature, and when the outdoor unit is judged to be in a full-load state, any indoor unit is controlled to be closed, so that the load of the outdoor unit is reduced, and the stability and the safety of the operation of the outdoor unit are improved; when the outdoor unit is judged not to be at full load and the operation environment temperature of the indoor unit is higher, the indoor unit is controlled to enter a refrigeration operation mode, the operation environment temperature is reduced, and user experience is improved.
In any one of the above technical solutions, preferably, the operation control device further includes: a calculating unit 208, configured to calculate a product of the rated output cooling capacity and a preset overload coefficient, and record the product as an overload output cooling capacity; a judging unit 210, configured to judge whether a sum of required output cooling capacities is greater than an overload output cooling capacity; the determining unit 210 is further configured to: when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit; the determining unit 210 is further configured to: the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to the preset environment temperature one by one according to the sequence of the operation environment temperature from low to high; the regulation unit 206 is further configured to: and when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running.
In the technical scheme, whether the sum of required output refrigerating capacities is larger than the overload output refrigerating capacity or not is judged, the overload output refrigerating capacity is the maximum output refrigerating capacity which can be borne by the outdoor unit, the output refrigerating capacity corresponds to the sum of the required output refrigerating capacities of the indoor units, when the sum of the required output refrigerating capacities is larger than the overload output refrigerating capacity, the operation environment temperature of any indoor unit is determined and compared with the preset environment temperature, whether the indoor unit can stop operation or not is further judged, and if the temperature of the indoor unit is smaller than or equal to the preset environment temperature, the indoor unit is controlled to stop operation, and the load of the outdoor unit is reduced.
The method comprises the steps of arranging the indoor units in sequence from low to high according to the operating environment temperatures of the indoor units, judging whether the operating environment temperatures of the indoor units are less than or equal to a preset environment temperature one by one, and controlling the operated indoor units not to change the operating mode if the lowest operating environment temperature is greater than the preset environment temperature.
In addition, the overload output refrigerating capacity is the product of the rated output refrigerating capacity and the preset overload coefficient, and if the sum of the required output refrigerating capacity is less than or equal to the overload output refrigerating capacity, all indoor units are controlled to normally operate.
In any of the above technical solutions, preferably, the determining unit 210 is further configured to: when the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, whether the running environment temperature of the indoor unit which stops running is smaller than or equal to the preset environment temperature is detected; the determining unit 210 is further configured to: and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
According to the technical scheme, after the indoor units are closed due to full load, the sum of the required output refrigerating capacity and the overload output refrigerating capacity are continuously compared, and when the sum of the required output refrigerating capacity is judged to be smaller than the overload output refrigerating capacity, the indoor units which are stopped to run are controlled to enter a refrigerating running mode one by one according to the sequence that the running environment temperature of the indoor units which are stopped to run is from high to low, so that the running environment temperature of each indoor unit is balanced, and the improvement of user experience is facilitated.
For example, when the sum of the required output refrigerating capacities is judged to be larger than the overload output refrigerating capacity, the preset operation environment temperature is 25 ℃, the operation environment temperature of the first indoor unit is 23 ℃, the operation environment temperature of the second indoor unit is 24 ℃, the operation environment temperature of the third indoor unit is 25 ℃, the operation environment temperature of the fourth indoor unit is 26 ℃, after the first indoor unit is closed, the sum of the required output refrigerating capacities is still larger than the overload output refrigerating capacity, the second indoor unit is closed until the sum of the required output refrigerating capacities is smaller than the overload output refrigerating capacity, the multi-connected air conditioner system is operated for a period of time, the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, at the moment, the operation environment temperature of the first indoor unit is 28 ℃, the operation environment temperature of the second indoor unit is 25 ℃, the operation environment temperature of the third indoor unit is 26 ℃, the operation environment temperature of the fourth indoor unit, the first indoor unit is controlled to enter the refrigeration mode first, and the third indoor unit is controlled to enter the refrigeration mode first if the sum of the required output refrigerating capacity is judged to be still smaller than the overload output refrigerating capacity.
In any of the above technical solutions, preferably, the fan speed of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the rotating speed of a fan, the air outlet temperature and the like, when the rotating speed of the fan of the indoor unit rises, the refrigerating capacity of the indoor unit is increased, the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the rotating speed of the fan rises, the required output refrigerating capacity of the indoor unit is increased, and namely the rotating speed of the fan of the indoor unit is positively correlated with the required output refrigerating capacity.
In any of the above technical solutions, preferably, the operating environment temperature of the indoor unit entering the cooling operation mode is positively correlated to the required output cooling capacity.
In the technical scheme, the refrigerating capacity of the indoor unit comprises the air speed, the air outlet temperature and the like, when the operating environment temperature of the indoor unit rises, the air outlet temperature of the indoor unit needs to be reduced so as to increase the refrigerating capacity of the indoor unit, and the required output refrigerating capacity of the indoor unit is provided by the outdoor unit, so that the operating environment temperature of the indoor unit rises, the required output refrigerating capacity of the indoor unit increases, namely the operating environment temperature of the indoor unit is positively correlated with the required output refrigerating capacity.
Fig. 3 shows a schematic block diagram of a multi-connected air conditioner system 300 according to an embodiment of the present invention.
As shown in fig. 3, the multi-connected air conditioner system 300 according to the embodiment of the present invention includes: the operation control method comprises the following steps of a memory, a processor and a computer program which is stored on the memory and can be operated on the processor, wherein the steps defined by the operation control method are realized when the processor executes the computer program; and/or include the operation control device 200 shown in fig. 2.
Fig. 4 shows a schematic flow diagram of an operation control method according to another embodiment of the present invention.
As shown in fig. 4, the operation control method according to another embodiment of the present invention specifically includes: step S402, in the process of refrigerating the multi-connected air conditioner system, determining the sum Qi of the output refrigerating capacities required by all indoor units entering a refrigerating operation mode according to a preset time interval, and simultaneously determining the rated output refrigerating capacity Qo of the outdoor unit; step S404, calculating the product X of the rated output refrigerating capacity Qo and a preset overload coefficient, and recording the product as the overload output refrigerating capacity Qo multiplied by X; step S406, judging whether the sum Qi of the required output refrigerating capacity is greater than the overload output refrigerating capacity Qo multiplied by X, if not, executing step S410, and if so, executing step S408; step S410, controlling the appointed indoor unit to enter a refrigeration working mode; step 408, judging whether the operating environment temperature of the indoor unit is less than or equal to the preset environment temperature one by one according to the sequence of the operating environment temperatures from low to high, if not, executing step 412, and if so, executing step 414; step S412, controlling the indoor unit to continue to operate; and step S414, controlling the indoor unit to stop running.
The technical scheme of the invention is explained in detail by combining the attached drawings, the invention provides an operation control method, an operation control device and a multi-connected air conditioner system, the multi-connected air conditioner system comprises a plurality of indoor units and an outdoor unit, when all the indoor units operate in a refrigeration mode, the total sum of the output refrigeration amount required by all the indoor units is compared with the rated output refrigeration amount of the outdoor unit, whether the outdoor unit is in a full-load operation state is judged, whether the indoor unit needs to be closed to reduce the load of the outdoor unit is further judged, the stability and the safety of the operation of the outdoor unit are improved, the service life of the outdoor unit is prolonged, whether the indoor unit can be closed is judged by the operation environment temperature of the indoor unit, the intelligent control of the indoor unit is realized, the load of the outdoor unit is effectively reduced, and the operation environment temperature of each indoor unit is balanced, the user experience is favorably improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An operation control method applied to a multi-connected air conditioner system including a plurality of indoor units and an outdoor unit, the operation control method comprising:
determining the sum of the output refrigerating capacities required by all indoor units entering a refrigerating operation mode, and simultaneously determining the rated output refrigerating capacity of the outdoor unit;
detecting the operating environment temperature of any indoor unit;
regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature;
according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operating environment temperature, the operation mode of any indoor unit is regulated and controlled, and the method specifically comprises the following steps:
calculating the product of the rated output refrigerating capacity and a preset overload coefficient, and recording the product as the overload output refrigerating capacity;
judging whether the sum of the required output refrigerating capacity is larger than the overload output refrigerating capacity or not;
when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit;
the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to a preset environment temperature one by one according to the sequence of the operation environment temperatures from low to high;
when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running;
when the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, whether the running environment temperature of the indoor unit which stops running is smaller than or equal to the preset environment temperature is detected;
and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
2. The operation control method according to claim 1,
the operation mode is that the indoor unit stops operating or the indoor unit enters a refrigeration operation mode.
3. The operation control method according to claim 1 or 2,
the fan rotating speed of the indoor unit entering the refrigeration running mode is positively correlated with the required output refrigerating capacity.
4. The operation control method according to claim 1 or 2,
the operation environment temperature of the indoor unit entering the refrigeration operation mode is positively correlated with the required output refrigerating capacity.
5. An operation control device adapted to a multi-connected air conditioner system including a plurality of indoor units and an outdoor unit, the operation control device comprising:
the system comprises a determining unit, a control unit and a control unit, wherein the determining unit is used for determining the sum of output refrigerating capacities required by all indoor units entering a refrigerating operation mode and determining the rated output refrigerating capacity of the outdoor unit;
the detection unit is used for detecting the operating environment temperature of any indoor unit;
the regulation and control unit is used for regulating and controlling the operation mode of any indoor unit according to the sum of the required output refrigerating capacity, the rated output refrigerating capacity and the operation environment temperature;
the calculating unit is used for calculating the product of the rated output refrigerating capacity and a preset overload coefficient and recording the product as the overload output refrigerating capacity;
the judging unit is used for judging whether the sum of the required output refrigerating capacity is larger than the overload output refrigerating capacity or not;
the judging unit is further configured to: when the sum of the required output refrigerating capacity is judged to be larger than the overload output refrigerating capacity, determining the operating environment temperature of any indoor unit;
the judging unit is further configured to: the operation mode judges whether the operation environment temperature of the indoor unit is less than or equal to a preset environment temperature one by one according to the sequence of the operation environment temperatures from low to high;
the judging unit is further configured to: when the running environment temperature of any indoor unit is judged to be less than or equal to the preset environment temperature, controlling the corresponding indoor unit to stop running;
the judging unit is further configured to: when the sum of the required output refrigerating capacities is judged to be smaller than the overload output refrigerating capacity, whether the running environment temperature of the indoor unit which stops running is smaller than or equal to a preset environment temperature or not is detected; the regulatory unit is further configured to: and controlling the indoor units which are stopped to enter a cooling operation mode one by one according to the sequence of the operation environment temperature of the indoor units which are stopped to be from high to low.
6. The operation control device according to claim 5,
the operation mode is that the indoor unit stops operating or the indoor unit enters a refrigeration operation mode.
7. The operation control device according to claim 5 or 6,
the fan rotating speed of the indoor unit entering the refrigeration running mode is positively correlated with the required output refrigerating capacity.
8. The operation control device according to claim 5 or 6,
the operation environment temperature of the indoor unit entering the refrigeration operation mode is positively correlated with the required output refrigerating capacity.
9. A multi-connected air conditioner system comprising a memory, a processor and a computer program stored on the memory and executable on the processor,
the processor, when executing the computer program, implementing the steps as defined in any one of the operation control methods of claims 1 to 4; and/or
Comprising an operation control device according to any one of claims 5 to 8.
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| CN109737570B (en) * | 2019-01-21 | 2023-04-28 | 中国电力科学研究院有限公司 | Multi-split operation regulation and control method and system |
| CN109883006A (en) * | 2019-02-18 | 2019-06-14 | 珠海格力电器股份有限公司 | Air conditioner group system capable of improving reliability and group control method |
| CN110081554B (en) * | 2019-05-07 | 2020-12-25 | 珠海格力电器股份有限公司 | Control method and device of multi-split air conditioning system |
| CN111023267B (en) * | 2019-12-27 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Self-cleaning control method and device and multi-split air conditioner |
| CN112611099B (en) * | 2020-12-18 | 2022-02-18 | 宁波向往智汇科技有限公司 | Central air-conditioning control system |
| CN113007872B (en) * | 2021-03-19 | 2022-07-01 | 青岛海信日立空调系统有限公司 | Multi-split air conditioning system |
| CN115325684B (en) * | 2022-09-13 | 2023-04-14 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner refrigeration control method and device, multi-split air conditioner and readable storage medium |
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