CN118659067B - Energy storage multi-scene self-adaptive loop control method based on PLC - Google Patents
Energy storage multi-scene self-adaptive loop control method based on PLC Download PDFInfo
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Abstract
The invention discloses an energy storage multi-scene self-adaptive loop control method based on PLC, comprising the following steps: acquiring operation condition information of energy storage systems with different specifications through a PLC, and analyzing an environmental control system of the control energy storage system based on the operation condition information of the energy storage system to acquire an analysis report of the environmental control system; judging whether the automatic mode is required to be adjusted according to the analysis report of the environmental control system; when the need of adjusting the ring control system into an automatic mode is determined, the ring control system automatically operates and enters a corresponding ring control scene; and in the automatic operation process of the environmental control system, the operating condition information of the energy storage system is acquired in real time and analyzed, and the corresponding fans included in the energy storage system are switched and regulated according to the analysis result. The battery fan and the air conditioner are controlled to be started and shut down, so that the temperature of the whole stored energy is maintained in a certain range. And in the continuous test, the aging verification of the environmental control system is also completed. The environmental control system can be self-adaptive in various scenes of a plurality of systems, and is not limited by the specification of energy storage.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to an energy storage multi-scene self-adaptive loop control method based on PLC.
Background
With the rapid development of the energy storage industry, more and more enterprises are put into the industry, and more energy storage products are put into the market. The current energy storage environmental control system has various types, and the energy storage environmental control system has multiple functions, has a series of advantages of wide application range, better investment, convenient operation and maintenance, safety, reliability and the like, and is thermally touted in the market.
More and more energy storage orders and delivery requirements are provided, and different functional requirements are put forward on an energy storage integrated manufacturer environmental control system, so that on one hand, in order to ensure stable operation of the system, the environmental control system adopts air conditioners with different powers according to different specifications; on the other hand, when the energy storage system is used as high-power charge and discharge equipment, the temperature of the battery cell, a transformer, PCS and other equipment are over-heated during charge and discharge test, and meanwhile, if the system is charged and discharged at full power, the battery cell heats more obviously, so the invention provides an energy storage multi-scene self-adaptive environmental control method based on PLC.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the technical problems in the above-described technology. Therefore, the invention aims to provide an energy storage multi-scene self-adaptive environmental control method based on PLC, which can maintain the temperature of the whole energy storage in a certain range by controlling the battery fan and the on-off of an air conditioner. And in the continuous test, the aging verification of the environmental control system is also completed. In addition, the environmental control system can be self-adaptive in various scenes of a plurality of systems, and is not limited by the specification of energy storage.
In order to achieve the above objective, an embodiment of the present invention provides an energy storage multi-scenario adaptive loop control method based on PLC, including:
acquiring operation condition information of energy storage systems with different specifications through a PLC, and analyzing an environmental control system of the control energy storage system based on the operation condition information of the energy storage system to acquire an analysis report of the environmental control system;
judging whether the automatic mode is required to be adjusted according to the analysis report of the environmental control system;
When the need of adjusting the ring control system into an automatic mode is determined, the ring control system automatically operates and enters a corresponding ring control scene;
and in the automatic operation process of the environmental control system, the operating condition information of the energy storage system is acquired in real time and analyzed, and the corresponding fans included in the energy storage system are switched and regulated according to the analysis result.
According to some embodiments of the present invention, operation condition information of energy storage systems of different specifications is collected by a PLC, an environmental control system of a control energy storage system is analyzed based on the operation condition information of the energy storage system, and an environmental control system analysis report is obtained, including:
Acquiring operation condition information of corresponding equipment in energy storage systems with different specifications through a PLC, wherein the corresponding equipment comprises a battery management system BMS, an energy storage converter PCS and a transformer;
setting environmental control scene words and temperature fixed values according to energy storage systems of different specifications;
and analyzing the environmental control system of the control energy storage system according to the operation condition information, the corresponding environmental control scene words and the temperature fixed value, and obtaining an environmental control system analysis report.
According to some embodiments of the present invention, in an automatic operation process, an environmental control system collects and analyzes operation condition information of an energy storage system in real time, and performs on-off adjustment on a corresponding fan included in the energy storage system according to an analysis result, including:
In the automatic operation process of the environmental control system, the operational condition information of the battery management system BMS and the energy storage converter PCS is collected in real time, the operational condition of the system is analyzed in real time, and an analysis report of the corresponding condition is obtained, wherein the operational condition information comprises the highest temperature of a system module, the highest temperature of an nth cluster BMS module, the lowest temperature of the system module, the lowest temperature of the nth cluster BMS module and the PCS charge-discharge state;
Determining a current operation condition according to the analysis report of the corresponding condition, and judging whether to turn on or turn off a corresponding fan included in the energy storage system according to the operation condition; the corresponding fans included in the energy storage system comprise a PCS fan, a transformer fan, an air conditioner on-off machine and a battery chamber fan.
According to some embodiments of the invention, the gating scene word includes a battery gating scene word, a PCS gating scene word, and a transformer gating scene word.
According to some embodiments of the invention, the temperature constant includes a battery compartment fan cooling on temperature, a battery compartment fan cooling off temperature, a battery compartment fan heating on temperature, a ring-controlled manual power-on maximum temperature, and a power-off transformer fan delay time.
According to some embodiments of the present invention, the loop control system automatically operates and enters a corresponding loop control scene, including:
Judging whether the energy storage system is in a charge-discharge state or not;
When the energy storage system is in a charging and discharging state, performing multi-scene self-adaptive adjustment;
When the energy storage system is not in a charging and discharging state, judging whether the temperature of the battery module of the energy storage system meets a first preset condition or not; when the temperature of the battery module of the energy storage system meets a first preset condition, performing multi-scene self-adaptive adjustment;
When the temperature of the battery module of the energy storage system is determined to not meet the first preset condition, judging whether the temperature of the single-cluster battery module meets the second preset condition or not; when the temperature of the single-cluster battery module meets a second preset condition, performing multi-scene self-adaptive adjustment; and when the temperature of the single-cluster battery module does not meet the second preset condition, skipping multi-scene self-adaptive adjustment, and executing the environmental control outlet instruction.
According to some embodiments of the invention, further comprising: when the environmental control system is determined not to be in the automatic mode, judging whether the highest temperature of the energy storage system is not beyond a limit value according to the operation condition information; and executing the loop control outlet instruction when the maximum temperature of the energy storage system is determined not to exceed the limit value.
According to some embodiments of the present invention, determining a current operation condition according to an analysis report of the corresponding operation condition, and judging whether to turn on or off a corresponding fan included in the energy storage system according to the operation condition, including:
judging whether the system is in a charge-discharge state or not when the battery loop control scene, the PCS loop control scene and the transformer loop control scene are the first scene; when the system is in a charging and discharging state, controlling an air conditioner to start, a battery fan to start, a PCS fan to start and a transformer fan to start; when the system is not in a charge-discharge state, after the control delay is preset, the air conditioner is turned off, the battery fan is turned off, the transformer fan is turned off and the PCS fan is turned off;
Judging whether the highest temperature of the system is higher than the cooling starting temperature of the fan of the battery chamber when the battery environment control scene and the transformer environment control scene are in the second scene; when the highest temperature of the system is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the air conditioner to start, the battery fan to start and the transformer fan to start; when the highest temperature of the system is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the system is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the system is greater than the heating starting temperature of the battery chamber fan, the air conditioner is controlled to be turned off, the battery fan is controlled to be turned off, and the transformer fan is controlled to be turned off;
When the battery environment control scene and the transformer environment control scene are in the third scene, judging whether the highest temperature of the n-th cluster BMS module is higher than the cooling starting temperature of the battery chamber fan or not; when the highest temperature of the nth cluster BMS module is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the corresponding air conditioner of the cluster to start, and controlling the corresponding battery fan of the cluster to start and the corresponding transformer fan to start; when the highest temperature of the nth cluster BMS module is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the nth cluster BMS module is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the nth cluster BMS module is greater than the heating starting temperature of the battery chamber fan, the control cluster corresponds to the shutdown of the air conditioner, and the clusters correspond to the shutdown of the battery fan and the shutdown of the transformer fan.
According to some embodiments of the invention, further comprising: when the environmental control system is determined not to operate in the automatic mode, judging whether the highest temperature of the system is lower than the maximum temperature of the environmental control manual starting according to the operating condition information; when the highest temperature of the system is determined to be smaller than the maximum temperature of the environment-controlled manual starting, the starting and the stopping of the air conditioner, the starting and the stopping of the battery room fan, the starting and the stopping of the transformer fan and the starting and the stopping of the PCS room fan are controlled through manual instruction information.
According to some embodiments of the invention, further comprising:
acquiring fan information in the process of adjusting the energy storage system based on the corresponding fan;
Calculating the adjustment coefficient of the fan according to the fan information ：
Wherein, Is the radius of the fan; Static pressure of air flow in the energy storage system; Is the density of air within the energy storage system; the displacement of the fan in unit time; Is the torque of the fan; Is the rotational speed of the fan;
Calculating heat dissipation efficiency of the fan on the energy storage system according to the adjusting coefficient of the fan ：
Wherein, The number of blades of the fan; Is the area of a single fan blade; the temperature of the energy storage system before adjustment; Is ambient temperature; the temperature of the energy storage system after adjustment; the working current of the energy storage system; Is the working voltage of the energy storage system; The heat generating efficiency of the energy storage system;
comparing the heat dissipation efficiency of the fan to the energy storage system with the preset heat dissipation efficiency, and sending an alarm prompt when the heat dissipation efficiency is determined to be smaller than the preset heat dissipation efficiency.
The invention provides an energy storage multi-scene self-adaptive environmental control method based on PLC, which is characterized in that the temperature of the whole energy storage is maintained in a certain range by controlling a battery fan and the on-off of an air conditioner. And in the continuous test, the aging verification of the environmental control system is also completed. In addition, the environmental control system can be self-adaptive in various scenes of a plurality of systems, and is not limited by the specification of energy storage.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of a PLC-based energy storage multi-scenario adaptive loop control method according to one embodiment of the invention;
FIG. 2 is a schematic diagram of the overall operational state of the environmental control system in accordance with one embodiment of the present invention;
FIG. 3 is a logic control diagram of the overall operation of the environmental control system in accordance with one embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
As shown in fig. 1, the embodiment of the invention provides an energy storage multi-scene self-adaptive loop control method based on a PLC, which comprises steps S1-S4:
s1, acquiring operation condition information of energy storage systems with different specifications through a PLC, and analyzing a ring control system of a control energy storage system based on the operation condition information of the energy storage system to acquire an analysis report of the ring control system;
S2, judging whether the automatic mode is required to be adjusted according to the analysis report of the environmental control system;
S3, when the fact that the environmental control system needs to be adjusted to an automatic mode is determined, the environmental control system automatically operates and enters a corresponding environmental control scene;
s4, in the automatic operation process, the environmental control system collects and analyzes the operation condition information of the energy storage system in real time, and the corresponding fans included in the energy storage system are switched and adjusted according to analysis results.
According to some embodiments of the present invention, operation condition information of energy storage systems of different specifications is collected by a PLC, an environmental control system of a control energy storage system is analyzed based on the operation condition information of the energy storage system, and an environmental control system analysis report is obtained, including:
Acquiring operation condition information of corresponding equipment in energy storage systems with different specifications through a PLC, wherein the corresponding equipment comprises a battery management system BMS, an energy storage converter PCS and a transformer;
setting environmental control scene words and temperature fixed values according to energy storage systems of different specifications;
and analyzing the environmental control system of the control energy storage system according to the operation condition information, the corresponding environmental control scene words and the temperature fixed value, and obtaining an environmental control system analysis report.
The temperature constant includes:
1) T1: battery chamber fan refrigeration starting temperature
When the automatic mode is in the loop control mode, the fan refrigeration starting temperature of the battery loop control scene 2 (second scene) and the battery loop control scene 3 (third scene) is set;
2) T2: cooling stop temperature of battery chamber fan
When the automatic mode is in the loop control mode, the fan refrigeration stop temperature of the battery loop control scene 2 (second scene) and the battery loop control scene 3 (third scene) is set;
3) T3: heating start temperature of battery chamber fan
When the automatic mode is in the loop control mode, setting the heating starting temperature of the fans in the battery loop control scene 2 (second scene) and scene 3 (third scene);
4) T4: environmental control manual start-up maximum temperature
Setting the maximum temperature of manual starting when the manual mode is in the environmental control mode;
5) Time1: delay time for turning off transformer fan
When the automatic mode is in the loop control mode, the fan delay time is set to the scene 1 (first scene) of the automatic mode.
In the automatic operation process of the environmental control system, the operation condition information of the energy storage system is collected in real time and analyzed, the environmental control system is analyzed by collecting information such as BMS, PCS and the like, and the collected information comprises: PCS charge-discharge state and system module maximum temperature.
The system acquires running information such as BMS, PCS and the like in real time, analyzes running conditions of the system in real time and acquires the information in real time:
1）Satus：
The system state is used for representing a PCS charge-discharge state, wherein 1 is a charge-discharge state, and 0 is an uncharged state;
2）Tmax：
the system maximum temperature is used for representing the maximum temperature of the whole system module in automatic operation;
3）Tmin
the system minimum temperature is used for representing the minimum temperature of the whole system module in automatic operation;
4）Tnmax
the highest temperature of the nth cluster is used for representing the highest temperature of the BMS module of the nth cluster in automatic operation;
5）Tnmin
The lowest temperature of the nth cluster is used for representing the lowest temperature of the BMS module of the nth cluster in automatic operation;
According to some embodiments of the present invention, in an automatic operation process, an environmental control system collects and analyzes operation condition information of an energy storage system in real time, and performs on-off adjustment on a corresponding fan included in the energy storage system according to an analysis result, including:
In the automatic operation process of the environmental control system, the operational condition information of the battery management system BMS and the energy storage converter PCS is collected in real time, the operational condition of the system is analyzed in real time, and an analysis report of the corresponding condition is obtained, wherein the operational condition information comprises the highest temperature of a system module, the highest temperature of an nth cluster BMS module, the lowest temperature of the system module, the lowest temperature of the nth cluster BMS module and the PCS charge-discharge state;
Determining a current operation condition according to the analysis report of the corresponding condition, and judging whether to turn on or turn off a corresponding fan included in the energy storage system according to the operation condition; the corresponding fans included in the energy storage system comprise a PCS fan, a transformer fan, an air conditioner on-off machine and a battery chamber fan.
According to some embodiments of the invention, the gating scene word includes a battery gating scene word, a PCS gating scene word, and a transformer gating scene word.
The environmental control scene word represents the number of the scene where the corresponding device is located, such as a first scene, a second scene, a third scene, and the like.
According to some embodiments of the invention, the temperature constant includes a battery compartment fan cooling on temperature, a battery compartment fan cooling off temperature, a battery compartment fan heating on temperature, a ring-controlled manual power-on maximum temperature, and a power-off transformer fan delay time.
According to some embodiments of the present invention, the loop control system automatically operates and enters a corresponding loop control scene, including:
Judging whether the energy storage system is in a charge-discharge state or not;
When the energy storage system is in a charging and discharging state, performing multi-scene self-adaptive adjustment;
When the energy storage system is not in a charging and discharging state, judging whether the temperature of the battery module of the energy storage system meets a first preset condition or not; when the temperature of the battery module of the energy storage system meets a first preset condition, performing multi-scene self-adaptive adjustment;
When the temperature of the battery module of the energy storage system is determined to not meet the first preset condition, judging whether the temperature of the single-cluster battery module meets the second preset condition or not; when the temperature of the single-cluster battery module meets a second preset condition, performing multi-scene self-adaptive adjustment; and when the temperature of the single-cluster battery module does not meet the second preset condition, skipping multi-scene self-adaptive adjustment, and executing the environmental control outlet instruction.
The first preset condition is: the highest temperature of the system is higher than the cooling starting temperature of the fan of the battery chamber;
the second preset condition is: the highest temperature of the nth cluster BMS module is larger than the cooling starting temperature of the fan of the battery chamber
According to some embodiments of the invention, further comprising: when the environmental control system is determined not to be in the automatic mode, judging whether the highest temperature of the energy storage system is not beyond a limit value according to the operation condition information; and executing the loop control outlet instruction when the maximum temperature of the energy storage system is determined not to exceed the limit value.
According to some embodiments of the present invention, determining a current operation condition according to an analysis report of the corresponding operation condition, and judging whether to turn on or off a corresponding fan included in the energy storage system according to the operation condition, including:
judging whether the system is in a charge-discharge state or not when the battery loop control scene, the PCS loop control scene and the transformer loop control scene are the first scene; when the system is in a charging and discharging state, controlling an air conditioner to start, a battery fan to start, a PCS fan to start and a transformer fan to start; when the system is not in a charge-discharge state, after the control delay is preset, the air conditioner is turned off, the battery fan is turned off, the transformer fan is turned off and the PCS fan is turned off;
Judging whether the highest temperature of the system is higher than the cooling starting temperature of the fan of the battery chamber when the battery environment control scene and the transformer environment control scene are in the second scene; when the highest temperature of the system is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the air conditioner to start, the battery fan to start and the transformer fan to start; when the highest temperature of the system is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the system is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the system is greater than the heating starting temperature of the battery chamber fan, the air conditioner is controlled to be turned off, the battery fan is controlled to be turned off, and the transformer fan is controlled to be turned off;
When the battery environment control scene and the transformer environment control scene are in the third scene, judging whether the highest temperature of the n-th cluster BMS module is higher than the cooling starting temperature of the battery chamber fan or not; when the highest temperature of the nth cluster BMS module is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the corresponding air conditioner of the cluster to start, and controlling the corresponding battery fan of the cluster to start and the corresponding transformer fan to start; when the highest temperature of the nth cluster BMS module is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the nth cluster BMS module is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the nth cluster BMS module is greater than the heating starting temperature of the battery chamber fan, the control cluster corresponds to the shutdown of the air conditioner, and the clusters correspond to the shutdown of the battery fan and the shutdown of the transformer fan.
According to some embodiments of the invention, further comprising: when the environmental control system is determined not to operate in the automatic mode, judging whether the highest temperature of the system is lower than the maximum temperature of the environmental control manual starting according to the operating condition information; when the highest temperature of the system is determined to be smaller than the maximum temperature of the environment-controlled manual starting, the starting and the stopping of the air conditioner, the starting and the stopping of the battery room fan, the starting and the stopping of the transformer fan and the starting and the stopping of the PCS room fan are controlled through manual instruction information. The system turns on or off the corresponding fans according to the current operation condition, the overall operation state of the system is shown in figure 2, the logic control is shown in figure 3,
When the battery gating scenario is selected to be 1: when status=1, the air conditioner is started, and the battery fan is started; when status=0, the fan stops after Time delay Time1, and the air conditioner is turned off.
When the PCS loop scene is selected to be 1 (first scene): when status=1, the PCS fan is turned on; when status=0, the PCS fan is turned off after delay Time 1.
When the transformer loop control scenario is selected to be 1: when status=1, the transformer fan is turned on; when status=0, the Time delay Time1 transformer fan is turned off.
When T max is larger than T1, the air conditioner is started, and the battery fan is started; when T max is smaller than T2 and T min is larger than T3, the air conditioner is turned off, and the battery fan is turned off.
When the battery-gating scenario is selected to be 2 (second scenario): when T max is larger than T1, the transformer fan is started; when T max is less than T2 and T min is greater than T3, the transformer fan is turned off.
When the transformer loop control scenario is selected to be 2: when T max is larger than T1, the transformer fan is started; when T max is less than T2 and T min is greater than T3, the transformer fan is turned off.
When the battery-gating scenario is selected to be 3 (third scenario): when T nmax is larger than T1, the cluster corresponds to the start of the air conditioner, and the cluster corresponds to the start of the battery fan; when T nmax is smaller than T2 and T nmin is larger than T3, the air conditioner is turned off corresponding to the cluster, and the battery fan is turned off corresponding to the cluster.
When the transformer loop control scene is selected to be 3: when T nmax is larger than T1, the transformer fan is started; when T nmax is less than T2 and T nmin is greater than T3, the transformer fan is turned off.
The beneficial effects of the technical scheme are that: the battery fan and the air conditioner are controlled to be started and shut down, so that the temperature of the whole stored energy is maintained in a certain range. And in the continuous test, the aging verification of the environmental control system is also completed. In addition, the environmental control system can be self-adaptive in multiple systems and multiple scenes, and is not limited by the specification of energy storage.
According to some embodiments of the invention, further comprising:
acquiring fan information in the process of adjusting the energy storage system based on the corresponding fan;
Calculating the adjustment coefficient of the fan according to the fan information ：
Wherein, Is the radius of the fan; Static pressure of air flow in the energy storage system; Is the density of air within the energy storage system; the displacement of the fan in unit time; Is the torque of the fan; Is the rotational speed of the fan;
Calculating heat dissipation efficiency of the fan on the energy storage system according to the adjusting coefficient of the fan ：
Wherein, The number of blades of the fan; Is the area of a single fan blade; the temperature of the energy storage system before adjustment; Is ambient temperature; the temperature of the energy storage system after adjustment; the working current of the energy storage system; Is the working voltage of the energy storage system; The heat generating efficiency of the energy storage system;
comparing the heat dissipation efficiency of the fan to the energy storage system with the preset heat dissipation efficiency, and sending an alarm prompt when the heat dissipation efficiency is determined to be smaller than the preset heat dissipation efficiency.
The technical scheme has the working principle and beneficial effects that: in the process of adjusting the energy storage system based on the corresponding fan, fan information is acquired, an adjusting coefficient of the fan is calculated according to the fan information, the heat dissipation efficiency of the fan to the energy storage system is calculated according to the adjusting coefficient of the fan, the heat dissipation efficiency of the fan to the energy storage system is compared with the preset heat dissipation efficiency, and an alarm prompt is sent when the heat dissipation efficiency is determined to be smaller than the preset heat dissipation efficiency. The fan is convenient to accurately monitor the heat dissipation information and the heat dissipation effect of the fan on the energy storage system, and when the heat dissipation efficiency is determined to be smaller than the preset heat dissipation efficiency, the fan is timely processed and maintained, so that the fan can effectively regulate the temperature of the energy storage system.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The energy storage multi-scene self-adaptive loop control method based on the PLC is characterized by comprising the following steps of:
acquiring operation condition information of energy storage systems with different specifications through a PLC, and analyzing an environmental control system of the control energy storage system based on the operation condition information of the energy storage system to acquire an analysis report of the environmental control system;
judging whether the automatic mode is required to be adjusted according to the analysis report of the environmental control system;
When the need of adjusting the ring control system into an automatic mode is determined, the ring control system automatically operates and enters a corresponding ring control scene;
the environmental control system collects and analyzes the operation condition information of the energy storage system in real time in the automatic operation process, and performs on-off adjustment on the corresponding fans included in the energy storage system according to analysis results;
The operation condition information of the energy storage systems with different specifications is acquired through the PLC, the environmental control system of the control energy storage system is analyzed based on the operation condition information of the energy storage system, and an analysis report of the environmental control system is acquired, and the method comprises the following steps:
Acquiring operation condition information of corresponding equipment in energy storage systems with different specifications through a PLC, wherein the corresponding equipment comprises a battery management system BMS, an energy storage converter PCS and a transformer;
setting environmental control scene words and temperature fixed values according to energy storage systems of different specifications;
Analyzing the environmental control system of the control energy storage system according to the operation condition information and the corresponding environmental control scene words and the temperature fixed value to obtain an environmental control system analysis report;
In the automatic operation process, the environmental control system collects and analyzes the operation condition information of the energy storage system in real time, and performs on-off adjustment on the corresponding fans included in the energy storage system according to an analysis result, and the environmental control system comprises:
In the automatic operation process of the environmental control system, the operational condition information of the battery management system BMS and the energy storage converter PCS is collected in real time, the operational condition of the system is analyzed in real time, and an analysis report of the corresponding condition is obtained, wherein the operational condition information comprises the highest temperature of a system module, the highest temperature of an nth cluster BMS module, the lowest temperature of the system module, the lowest temperature of the nth cluster BMS module and the PCS charge-discharge state;
determining a current operation condition according to the analysis report of the corresponding condition, and judging whether to turn on or turn off a corresponding fan included in the energy storage system according to the operation condition; the corresponding fans included in the energy storage system comprise PCS fans, transformer fans, air conditioner on-off and battery chamber fans;
Determining a current operation condition according to the analysis report of the corresponding condition, and judging to turn on or off a corresponding fan included in the energy storage system according to the operation condition, wherein the method comprises the following steps:
judging whether the system is in a charge-discharge state or not when the battery loop control scene, the PCS loop control scene and the transformer loop control scene are the first scene; when the system is in a charging and discharging state, controlling an air conditioner to start, a battery fan to start, a PCS fan to start and a transformer fan to start; when the system is not in a charge-discharge state, after the control delay is preset, the air conditioner is turned off, the battery fan is turned off, the transformer fan is turned off and the PCS fan is turned off;
Judging whether the highest temperature of the system is higher than the cooling starting temperature of the fan of the battery chamber when the battery environment control scene and the transformer environment control scene are in the second scene; when the highest temperature of the system is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the air conditioner to start, the battery fan to start and the transformer fan to start; when the highest temperature of the system is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the system is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the system is greater than the heating starting temperature of the battery chamber fan, the air conditioner is controlled to be turned off, the battery fan is controlled to be turned off, and the transformer fan is controlled to be turned off;
When the battery environment control scene and the transformer environment control scene are in the third scene, judging whether the highest temperature of the n-th cluster BMS module is higher than the cooling starting temperature of the battery chamber fan or not; when the highest temperature of the nth cluster BMS module is determined to be higher than the cooling starting temperature of the battery chamber fan, controlling the corresponding air conditioner of the cluster to start, and controlling the corresponding battery fan of the cluster to start and the corresponding transformer fan to start; when the highest temperature of the nth cluster BMS module is less than or equal to the cooling starting temperature of the battery chamber fan, the highest temperature of the nth cluster BMS module is less than the cooling stopping temperature of the battery chamber fan, and the lowest temperature of the nth cluster BMS module is greater than the heating starting temperature of the battery chamber fan, the control cluster corresponds to the shutdown of the air conditioner, and the clusters correspond to the shutdown of the battery fan and the shutdown of the transformer fan.
2. The PLC based energy storage multi-scenario adaptive loop control method of claim 1, wherein the loop control scenario word comprises a battery loop control scenario word, a PCS loop control scenario word, and a transformer loop control scenario word.
3. The PLC based energy storage multi-scenario adaptive loop control method of claim 2, wherein the temperature set values include battery compartment fan cooling on temperature, battery compartment fan cooling off temperature, battery compartment fan heating on temperature, loop controlled manual on maximum temperature, and off transformer fan delay time.
4. The PLC-based energy storage multi-scenario adaptive loop control method of claim 1, wherein the loop control system automatically operates and enters a corresponding loop control scenario, comprising:
Judging whether the energy storage system is in a charge-discharge state or not;
when the energy storage system is in a charging and discharging state, entering a multi-scene self-adaptive regulation mode;
when the energy storage system is not in a charging and discharging state, judging whether the temperature of the battery module of the energy storage system meets a first preset condition or not; when the temperature of the battery module of the energy storage system meets a first preset condition, entering a multi-scene self-adaptive regulation mode;
When the temperature of the battery module of the energy storage system is determined to not meet the first preset condition, judging whether the temperature of the single-cluster battery module meets the second preset condition or not; when the temperature of the single-cluster battery module meets a second preset condition, entering a multi-scene self-adaptive regulation mode; when the temperature of the single-cluster battery module is determined to not meet the second preset condition, skipping a multi-scene self-adaptive regulation mode, and executing an environmental control outlet command;
the first preset condition is: the highest temperature of the system is higher than the cooling starting temperature of the fan of the battery chamber;
The second preset condition is: the highest temperature of the nth cluster BMS module is larger than the cooling starting temperature of the fan of the battery chamber.
5. The PLC-based energy storage multi-scenario adaptive loop control method of claim 1, further comprising: when the environmental control system is determined not to be in the automatic mode, judging whether the highest temperature of the energy storage system is not beyond a limit value according to the operation condition information; and executing the loop control outlet instruction when the maximum temperature of the energy storage system is determined not to exceed the limit value.
6. The PLC-based energy storage multi-scenario adaptive loop control method of claim 1, further comprising: when the environmental control system is determined not to operate in the automatic mode, judging whether the highest temperature of the system is lower than the maximum temperature of the environmental control manual starting according to the operating condition information; when the highest temperature of the system is determined to be smaller than the maximum temperature of the environment-controlled manual starting, the starting and the stopping of the air conditioner, the starting and the stopping of the battery room fan, the starting and the stopping of the transformer fan and the starting and the stopping of the PCS room fan are controlled through manual instruction information.
7. The PLC-based energy storage multi-scenario adaptive loop control method of claim 1, further comprising:
acquiring fan information in the process of adjusting the energy storage system based on the corresponding fan;
Calculating the adjustment coefficient of the fan according to the fan information ：
Wherein, Is the radius of the fan; Static pressure of air flow in the energy storage system; Is the density of air within the energy storage system; the displacement of the fan in unit time; Is the torque of the fan; Is the rotational speed of the fan;
Calculating heat dissipation efficiency of the fan on the energy storage system according to the adjusting coefficient of the fan ：
Wherein, The number of blades of the fan; Is the area of a single fan blade; the temperature of the energy storage system before adjustment; Is ambient temperature; the temperature of the energy storage system after adjustment; the working current of the energy storage system; Is the working voltage of the energy storage system; The heat generating efficiency of the energy storage system;
comparing the heat dissipation efficiency of the fan to the energy storage system with the preset heat dissipation efficiency, and sending an alarm prompt when the heat dissipation efficiency is determined to be smaller than the preset heat dissipation efficiency.
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