CN111473466B - Frequency control method and air conditioner - Google Patents
Frequency control method and air conditioner Download PDFInfo
- Publication number
- CN111473466B CN111473466B CN202010316068.6A CN202010316068A CN111473466B CN 111473466 B CN111473466 B CN 111473466B CN 202010316068 A CN202010316068 A CN 202010316068A CN 111473466 B CN111473466 B CN 111473466B
- Authority
- CN
- China
- Prior art keywords
- compressor
- frequency
- pressure value
- air conditioner
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a frequency control method for controlling a target frequency of a multi-split air conditioner, which comprises the following steps: acquiring the current external environment temperature and the pressure value of an air conditioner compressor exhaust pipe; judging whether the continuous operation time of the compressor is greater than a preset time threshold value or not; if so, adjusting the frequency of the compressor according to the pressure value; and if not, adjusting the frequency of the compressor according to the external environment temperature. Different frequency control modes are selected according to the running time of the compressor, various parameters of the system are unstable in the initial starting stage of the compressor, the frequency of the compressor is adjusted according to the external environment temperature of the parameters which are not influenced by the running of the internal system of the air conditioner, and the frequency of the compressor is adjusted according to the pressure value of the exhaust pipe when the compressor runs stably, so that the frequency control method is suitable for controlling the frequency of the compressor including the water heater in the multi-split air conditioner internal unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a frequency control method and an air conditioner.
Background
The difference between the working structure of the water heater and the air conditioner internal unit is large. The temperature sensor in the water heater is single, and the feedback system has less available data; the number of temperature sensors in the air conditioner indoor unit is large, and the available data of the system which makes a foul out is comprehensive.
When the indoor unit connected with the multi-split air conditioner external unit is provided with a common air conditioner internal unit and a water heater, because more parameters of the air conditioner internal temperature sensor are used in the target frequency control mode of the compressor when the air conditioner internal unit is in heating operation, and only a water temperature sensor is arranged in the water heater, the original frequency control mode of the compressor is not suitable for the operation (heating) of the water heater.
Disclosure of Invention
The present invention is directed to a frequency control method and an air conditioner, which at least partially solve the above technical problems.
In order to solve the above problems, an aspect of the present invention provides a frequency control method for controlling a target frequency of a multi-split air conditioner, including: acquiring the current external environment temperature and the pressure value of an air conditioner compressor exhaust pipe; judging whether the continuous operation time of the compressor is greater than a preset time threshold value or not; if so, adjusting the frequency of the compressor according to the pressure value; and if not, adjusting the frequency of the compressor according to the external environment temperature.
Therefore, different frequency control modes are selected according to the running time of the compressor, various parameters of the system are unstable in the initial starting stage of the compressor, the frequency of the compressor is adjusted according to the external environment temperature of the parameters which are not affected by the running of the internal system of the air conditioner, and the frequency of the compressor is adjusted according to the pressure value of the exhaust pipe when the compressor runs stably, so that the frequency control device is suitable for the frequency control of the compressor including the water heater in the multi-split air conditioner internal unit.
Optionally, the adjusting the frequency of the compressor according to the external environment temperature includes: according to
Adjusting the frequency of the compressor; wherein F is the target frequency of the compressor to be regulated, FmaxThe maximum operation frequency is set according to the energy efficiency of the air conditioner, K is an adjusting coefficient determined according to the external environment temperature, m is the number of the started indoor units of the multi-split air conditioner, and n is the total number of the multi-split air conditioner.
Optionally, the K is an adjustment coefficient determined according to the external environment temperature, and includes: when the external environment temperature is lower than a first preset temperature threshold, the value range of K is 40-60%; when the external environment temperature is greater than or equal to a first preset temperature threshold and less than a second preset temperature threshold, the value range of K is 60-80%; and when the external environment temperature is greater than a second preset temperature threshold, the value range of the K is 80-90%.
Therefore, the calculation mode of calculating the frequency of the compressor according to the external environment temperature is reasonably designed, and the corresponding adjusting coefficient can be determined according to different external environment temperatures, so that the frequency of the compressor can be accurately adjusted, and the stable operation of the air conditioner is ensured.
Optionally, the adjusting the frequency of the compressor according to the pressure value comprises: according to F ═ Fs+FdΔ F adjusting the frequency of the compressor; wherein F is the target frequency of the currently regulated compressor, FsIs the target frequency of the compressor at the previous moment, FdAnd delta F is the operating frequency of the compressor at the current moment, and is an adjusting coefficient determined according to the pressure value.
Optionally, the Δ F being an adjustment coefficient determined according to the pressure value includes: calculating the pressure difference between the pressure value and the optimal pressure value of the exhaust pipe; when the differential pressure is smaller than a first preset differential pressure value, the value range of the delta F is 10-15%; when the differential pressure is greater than or equal to a first preset differential pressure value and smaller than a second preset differential pressure value, the value range of the delta F is-2%; and when the differential pressure is larger than a second preset differential pressure value, the value range of the delta F is between 15 percent below zero and 10 percent below zero.
Therefore, the calculation mode of calculating the frequency of the compressor according to the pressure value of the exhaust pipe is reasonably designed, and the corresponding adjusting coefficient can be determined according to different pressure values of the exhaust pipe, so that the frequency of the compressor can be accurately adjusted, and the stable operation of the air conditioner is ensured.
Optionally, the value range of the first preset temperature threshold is 5-15 ℃, and the value range of the second preset temperature threshold is 15-25 ℃.
Optionally, the range of the first preset differential pressure value is-10% to-5%, and the range of the second preset differential pressure value is 5% to 10%.
Therefore, the control mode of the frequency is further optimized by reasonably designing the value ranges of the thresholds and the difference values.
Optionally, the value range of the optimal pressure value of the exhaust pipe is 2.5 Mpa-3.5 Mpa.
Optionally, the obtaining the current external environment temperature and the pressure value of the exhaust pipe of the air conditioner compressor includes: the temperature data of an external environment temperature sensor of the air conditioner and the pressure data of a high-pressure sensor of the exhaust pipe are sampled for multiple times, and the external environment temperature and the pressure value of the exhaust pipe are obtained by respectively averaging.
Therefore, the average value is obtained through multiple times of sampling, and the external environment temperature and the exhaust pipe pressure value can be obtained more accurately.
Another aspect of the present invention provides an air conditioner including a computer-readable storage medium storing a computer program and a processor, the computer program being read by the processor and executed to perform the above-mentioned frequency control method. The advantages of the air conditioner are the same as those of the frequency control method, and are not described in detail herein.
Drawings
Fig. 1 schematically shows a flowchart of the above frequency control method provided by the first embodiment of the present invention.
Detailed Description
In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a target frequency control mode of a compressor, which is simultaneously suitable for the work of a water heater and the heating operation of an air conditioner, and when an external machine detects that the water heater starts to work, the frequency control mode is changed into the following mode: when the compressor starts the initial stage, the initial target frequency is determined by the external environment temperature, after the compressor works stably, the pressure of the exhaust pipe is detected by the high-pressure sensor, and the pressure of the exhaust pipe is compared with the target pressure, so that the target frequency of the compressor is controlled in a closed loop mode, namely, the compressor can be applied to the case that a water heater works alone or the water heater and an air conditioner indoor unit work simultaneously during heating, and the specific embodiment is introduced below.
Example one
Fig. 1 schematically shows a flowchart of the above frequency control method provided by the first embodiment of the present invention, and as shown in fig. 1, the method may include operations S101 to S104, for example.
And S101, acquiring the external environment temperature and the pressure value of the air conditioner compressor exhaust pipe.
In a feasible manner of this embodiment, the AD sampling port of the main chip acquires data from the external environment temperature sensor and the exhaust pipe high pressure sensor, averages the data over multiple samplings, and converts the data into a temperature value in units of celsius degrees (c) and a pressure value in units of megapascals (Mpa) through an algorithm, thereby obtaining the external environment temperature (T ° c)Outer ring) And compressor discharge pipe pressure value (P)Exhaust of gases)。
And S102, judging whether the continuous operation time of the compressor is greater than a preset time threshold value or not.
In a feasible manner of this embodiment, the main chip may sample the current operating frequency of the compressor, and count the continuous operating time of the compressor by determining whether the current operating frequency of the compressor is 0. Generally, the compressor operates for 5-10 minutes and then operates stably, so that the preset time threshold of the compressor is generally 5-10 minutes.
If the time for the continuous operation of the compressor is greater than the preset time threshold, operation S103 is performed, and if the time for the continuous operation of the compressor is less than or equal to the preset time threshold, operation S104 is performed.
And S103, adjusting the frequency of the compressor according to the pressure value.
When the compressor is running at start-upDuring the initial stage, refrigerant circulation has not formed complete closed loop yet, and each item parameter of system is unstable, can't use air conditioning system internal parameter to set for compressor initial frequency, consequently, need be according to a parameter that does not receive the operation of the interior system of air conditioner influence this moment: external ambient temperature (T)Outer ring) The target frequency is set to an appropriate initial value.
In a possible manner of this embodiment, according to
Adjusting the frequency of the compressor; wherein F is the target frequency of the compressor which needs to be adjusted at that time, FmaxThe upper frequency limit (maximum operating frequency) set according to the energy efficiency of the air conditioner is generally 80-120 Hz, K is an adjusting coefficient determined according to the external environment temperature, m is the number of the started indoor units of the multi-split air conditioner, and n is the total number of the multi-split air conditioner.
When the external environment temperature is less than a first preset temperature threshold, the value range of K is 40% -60%, and when the external environment temperature is greater than or equal to the first preset temperature threshold and is less than a second preset temperature threshold, the value range of K is 60% -80%; and when the external environment temperature is greater than a second preset temperature threshold, the value range of K is 80-90%. The value range of the first preset temperature threshold is 5-15 ℃, and the value range of the second preset temperature threshold is 15-25 ℃.
And S104, adjusting the frequency of the compressor according to the external environment temperature.
When the compressor is gradually stabilized in operation, the internal parameters of the air conditioning system are required to be utilized to feed back whether the current air conditioning operation state is optimal or not, when the internal unit is a water heater, the temperature parameters of the internal unit only have the current water temperature of the water heater, the feedback error of the parameters is large, the reference value is not available, the exhaust pipe is an outlet pipeline of the compressor, and the pipeline parameters of the exhaust pipe can reflect the operation state of the compressor more visually, so that the pressure value (P) of the exhaust pipe can be directly utilized at the moment (P is the pressure value of the exhaust pipe)Exhaust of gases) And the target running frequency of the compressor is controlled as feedback, so that closed-loop control of the frequency is realized.
In a feasible manner of the present embodiment, F is defined as Fs+FdΔ F adjusting the frequency of the compressor; wherein F is the target frequency of the currently regulated compressor, FsCalculating the target frequency of the compressor for the last moment, FdThe running frequency of the compressor at the current moment is obtained by sampling of the main chip. Δ F is an adjustment coefficient determined from the pressure value, which can be determined from the pressure difference between the exhaust pipe pressure value and the target pressure value, i.e. Δ P ═ P1-P2Wherein P is1To obtain the current exhaust pressure value, P2The value range is 2.5 MPa-3.5 MPa for the optimal pressure value of the exhaust pipe.
When the differential pressure is smaller than a first preset differential pressure value, the value range of the delta F is 10-15%; when the differential pressure is greater than or equal to a first preset differential pressure value and smaller than a second preset differential pressure value, the value range of the delta F is-2%; when the pressure difference is larger than a second preset pressure difference value, the value range of the delta F is-15% to-10%. Wherein, the value range of the first preset differential pressure value is-10% to-5%, and the value range of the second preset differential pressure value is 5% to 10%.
In the embodiment, different frequency control modes are selected according to the running time of the compressor, each parameter of the system is unstable in the initial starting stage of the compressor, the frequency of the compressor is adjusted according to the external environment temperature of the parameter which is not influenced by the running of the internal system of the air conditioner, and the frequency of the compressor is adjusted according to the pressure value of the exhaust pipe when the compressor runs stably, so that the frequency control device is suitable for the frequency control of the compressor comprising a water heater in an internal unit of a multi-split air conditioner.
Example two
The present embodiment provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, wherein the computer program is read and executed by the processor to implement the method of the first embodiment. Please refer to the first embodiment, which is not described herein again.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A frequency control method for controlling a target frequency of a multi-split air conditioner, comprising:
acquiring the current external environment temperature and the pressure value of an air conditioner compressor exhaust pipe;
judging whether the continuous operation time of the compressor is greater than a preset time threshold value or not;
if so, adjusting the frequency of the compressor according to the pressure value; if not, adjusting the frequency of the compressor according to the external environment temperature;
wherein the adjusting the frequency of the compressor according to the external ambient temperature includes:
according to
Adjusting the frequency of the compressor;
wherein F is the target frequency of the compressor to be regulated, FmaxThe maximum operation frequency is set according to the energy efficiency of the air conditioner, K is an adjusting coefficient determined according to the external environment temperature, m is the number of the started indoor units of the multi-split air conditioner, and n is the total number of the multi-split air conditioner;
the adjusting the frequency of the compressor according to the pressure value comprises:
according to F ═ Fs+FdΔ F adjusting the frequency of the compressor;
wherein F is the target frequency of the currently regulated compressor, FsIs the target frequency of the compressor at the previous moment, FdAnd delta F is the operating frequency of the compressor at the current moment, and is an adjusting coefficient determined according to the pressure value.
2. The method of claim 1, wherein K is an adjustment coefficient determined from the external ambient temperature comprises:
when the external environment temperature is lower than a first preset temperature threshold, the value range of K is 40-60%;
when the external environment temperature is greater than or equal to a first preset temperature threshold and less than a second preset temperature threshold, the value range of K is 60-80%;
and when the external environment temperature is greater than a second preset temperature threshold, the value range of the K is 80-90%.
3. The method of claim 1, wherein the af being an adjustment factor determined from the pressure value comprises:
calculating the pressure difference between the pressure value and the optimal pressure value of the exhaust pipe;
when the differential pressure is smaller than a first preset differential pressure value, the value range of the delta F is 10-15%;
when the differential pressure is greater than or equal to a first preset differential pressure value and smaller than a second preset differential pressure value, the value range of the delta F is-2%;
and when the differential pressure is larger than a second preset differential pressure value, the value range of the delta F is between 15 percent below zero and 10 percent below zero.
4. The method according to claim 2, wherein the first predetermined temperature threshold value is in a range of 5-15 ℃ and the second predetermined temperature threshold value is in a range of 15-25 ℃.
5. The method of claim 3, wherein the first predetermined differential pressure value ranges from-10% to-5%, and the second predetermined differential pressure value ranges from 5% to 10%.
6. The method of claim 3, wherein the exhaust stack has an optimum pressure value in the range of 2.5Mpa to 3.5 Mpa.
7. The method of claim 1, wherein the obtaining the current external ambient temperature and the pressure value of the discharge pipe of the air conditioner compressor comprises:
the temperature data of an external environment temperature sensor of the air conditioner and the pressure data of a high-pressure sensor of the exhaust pipe are sampled for multiple times, and the external environment temperature and the pressure value of the exhaust pipe are obtained by respectively averaging.
8. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010316068.6A CN111473466B (en) | 2020-04-21 | 2020-04-21 | Frequency control method and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010316068.6A CN111473466B (en) | 2020-04-21 | 2020-04-21 | Frequency control method and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111473466A CN111473466A (en) | 2020-07-31 |
| CN111473466B true CN111473466B (en) | 2022-03-22 |
Family
ID=71756021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010316068.6A Active CN111473466B (en) | 2020-04-21 | 2020-04-21 | Frequency control method and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111473466B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992794B (en) * | 2021-03-02 | 2024-08-13 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and computer readable storage medium |
| CN113587249B (en) * | 2021-07-12 | 2023-02-07 | 青岛海信日立空调系统有限公司 | Multi-split system |
| CN115355640B (en) * | 2022-08-26 | 2024-03-22 | 青岛海尔中央空调有限公司 | Method and device for controlling water chilling unit, water chilling unit and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679482A (en) * | 2012-05-25 | 2012-09-19 | 宁波奥克斯空调有限公司 | Heat recovery multiplex system based on variable-frequency air conditioner and control method thereof |
| CN103808012A (en) * | 2012-11-13 | 2014-05-21 | 珠海格力电器股份有限公司 | variable-frequency water heater and control method thereof |
| JP5943869B2 (en) * | 2013-03-27 | 2016-07-05 | 三菱電機株式会社 | Air conditioner |
| CN106016457A (en) * | 2016-05-23 | 2016-10-12 | 广东美的暖通设备有限公司 | Multi-split system and control method for heating throttling element thereof |
| JP2018136099A (en) * | 2017-02-23 | 2018-08-30 | 株式会社富士通ゼネラル | Heat pump type water heater |
| CN109099553A (en) * | 2018-08-14 | 2018-12-28 | 宁波奥克斯电气股份有限公司 | A kind of compressor frequency control method, device and air conditioner |
| CN110057042A (en) * | 2019-04-30 | 2019-07-26 | 广东美的制冷设备有限公司 | Control method, device and the computer readable storage medium of air-conditioning system |
| CN110145906A (en) * | 2019-05-16 | 2019-08-20 | 广东美的暖通设备有限公司 | Coolant circulating system and its control method and computer readable storage medium |
| CN110332682A (en) * | 2019-07-25 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | The method, apparatus and air conditioner adjusted to the working frequency of compressor |
| CN110779183A (en) * | 2019-11-12 | 2020-02-11 | 广州华凌制冷设备有限公司 | Operation control method and device, air conditioner and storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4624223B2 (en) * | 2005-09-20 | 2011-02-02 | 三洋電機株式会社 | Refrigeration system |
| JP5633737B2 (en) * | 2010-09-22 | 2014-12-03 | アイシン精機株式会社 | Air conditioner |
| CN102767887B (en) * | 2012-05-09 | 2015-03-04 | 美的集团股份有限公司 | VRF (varied refrigerant volume) air conditioning system and control method of VRF air conditioning system |
| CN102767886B (en) * | 2012-07-26 | 2014-12-03 | 宁波奥克斯电气有限公司 | Method for judging proper amount of refrigerants for multi-united air conditioning unit |
| JP6007965B2 (en) * | 2014-12-15 | 2016-10-19 | ダイキン工業株式会社 | Air conditioner |
| CN106403044B (en) * | 2016-11-03 | 2019-05-31 | 广东美的暖通设备有限公司 | The determination method of multi-line system and its indoor unit heating capacity |
| CN107606834B (en) * | 2017-09-12 | 2020-09-04 | 广东美的暖通设备有限公司 | Control method of multi-split system and multi-split system |
| CN107883522A (en) * | 2017-11-10 | 2018-04-06 | 广东志高暖通设备股份有限公司 | The control method and device of outdoor fan in a kind of frequency conversion heat pump air-conditioning |
| CN109612021B (en) * | 2018-11-28 | 2021-04-20 | 宁波奥克斯电气股份有限公司 | Multi-connected air conditioning system abnormal sound control method and multi-connected air conditioning system |
-
2020
- 2020-04-21 CN CN202010316068.6A patent/CN111473466B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679482A (en) * | 2012-05-25 | 2012-09-19 | 宁波奥克斯空调有限公司 | Heat recovery multiplex system based on variable-frequency air conditioner and control method thereof |
| CN103808012A (en) * | 2012-11-13 | 2014-05-21 | 珠海格力电器股份有限公司 | variable-frequency water heater and control method thereof |
| JP5943869B2 (en) * | 2013-03-27 | 2016-07-05 | 三菱電機株式会社 | Air conditioner |
| CN106016457A (en) * | 2016-05-23 | 2016-10-12 | 广东美的暖通设备有限公司 | Multi-split system and control method for heating throttling element thereof |
| JP2018136099A (en) * | 2017-02-23 | 2018-08-30 | 株式会社富士通ゼネラル | Heat pump type water heater |
| CN109099553A (en) * | 2018-08-14 | 2018-12-28 | 宁波奥克斯电气股份有限公司 | A kind of compressor frequency control method, device and air conditioner |
| CN110057042A (en) * | 2019-04-30 | 2019-07-26 | 广东美的制冷设备有限公司 | Control method, device and the computer readable storage medium of air-conditioning system |
| CN110145906A (en) * | 2019-05-16 | 2019-08-20 | 广东美的暖通设备有限公司 | Coolant circulating system and its control method and computer readable storage medium |
| CN110332682A (en) * | 2019-07-25 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | The method, apparatus and air conditioner adjusted to the working frequency of compressor |
| CN110779183A (en) * | 2019-11-12 | 2020-02-11 | 广州华凌制冷设备有限公司 | Operation control method and device, air conditioner and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111473466A (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111473466B (en) | Frequency control method and air conditioner | |
| CN110513930B (en) | Loading and unloading control method for variable-frequency compressor of air source heat pump unit | |
| CN101769584B (en) | Method for intelligently controlling frequency of variable-frequency air-conditioner | |
| CN106556099B (en) | The control method of the electric expansion valve of the indoor unit of multi-online air-conditioning system | |
| CN111156748B (en) | Variable frequency air conditioner limiting power control method, storage medium and air conditioner | |
| CN111023435B (en) | Control method and system for expansion valve of air conditioner and air conditioner | |
| CN101832618B (en) | Frequency control method and control device of compressor of air conditioner | |
| CN107178873A (en) | Transducer air conditioning and its control method | |
| CN108759010B (en) | Refrigerant supplement control method of air conditioner, air conditioner and storage medium | |
| CN110736270B (en) | Opening degree control method and device of electronic expansion valve | |
| CN108375175A (en) | air conditioning system control method and device | |
| CN111141075B (en) | Air conditioner control method and device, air conditioner and storage medium | |
| CN110500717A (en) | Air conditioning air volume correction control method, device and equipment and air conditioning system | |
| CN107101347A (en) | The control method and air-conditioning of frequency of air condition compressor | |
| JP2017162690A (en) | Fuel cell system and control method thereof | |
| CN106196786A (en) | The method of regulation outdoor machine of air-conditioner electronic expansion valve | |
| CN108131805B (en) | Multi-split self-adaptive adjustment control method and device | |
| CN111765599A (en) | Optimization method of air conditioner control strategy, processor and memory | |
| CN110068119A (en) | A kind of dynamic frequency-conversion method and device of compressor of air conditioner | |
| CN113432354B (en) | Air source heat pump control method and device, air source heat pump and storage medium | |
| CN112856736A (en) | Control method and device of air conditioner, air conditioner and readable storage medium | |
| CN115566235B (en) | Anti-surge control method, system, equipment and medium for fuel cell air compressor | |
| WO2022198979A1 (en) | Control method and apparatus for air conditioner, and air conditioner | |
| CN110594991B (en) | Heating bias flow control method and system for multi-split air conditioner and multi-split air conditioner system | |
| CN108800421A (en) | Control method, device and the air-conditioning with it of air-conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |