CN116678148A - Compressor control method, temperature adjusting system and temperature control equipment - Google Patents

Compressor control method, temperature adjusting system and temperature control equipment Download PDF

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Publication number
CN116678148A
CN116678148A CN202310630022.5A CN202310630022A CN116678148A CN 116678148 A CN116678148 A CN 116678148A CN 202310630022 A CN202310630022 A CN 202310630022A CN 116678148 A CN116678148 A CN 116678148A
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China
Prior art keywords
compressor
power
offset parameter
operating power
fan
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CN202310630022.5A
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Chinese (zh)
Inventor
李亚贵
幸云辉
陈熙
王雷
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Ecoflow Technology Ltd
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Ecoflow Technology Ltd
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Priority to CN202310630022.5A priority Critical patent/CN116678148A/en
Publication of CN116678148A publication Critical patent/CN116678148A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application provides a compressor control method, a temperature regulation system and temperature control equipment, wherein the method comprises the following steps: acquiring the running power of a compressor, a condensing fan and an evaporating fan at the current moment; calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan; calculating the offset parameter of the total operating power at the current moment according to the total operating power of the temperature regulating system, the rated power threshold value of the temperature regulating system and the offset parameter at the last moment; determining a target rotation speed of the compressor according to the offset parameter of the total operation power and the expected rotation speed of the compressor; and generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed. The application aims to improve the performance of a temperature regulating system under complex working conditions.

Description

Compressor control method, temperature adjusting system and temperature control equipment
Technical Field
The present application relates to the field of electrical control technologies, and in particular, to a compressor control method, a temperature adjustment system, and a temperature control device.
Background
The temperature control device is a device that provides a temperature adjusting function such as air circulation, cooling, heating, etc., to the outside. Currently, temperature control equipment usually faces complicated and changeable working conditions, and the power consumption of the temperature control equipment under different working conditions is different. Under some working conditions, performance of a temperature regulating system of the temperature control equipment is reduced, so that requirements of users on performances such as energy consumption, endurance and the like cannot be met. Therefore, how to improve the performance of the temperature regulating system under the complex working condition becomes a problem to be solved.
Disclosure of Invention
The application mainly aims to provide a compressor control method, a temperature regulating system and temperature control equipment, and aims to improve the performance of the temperature regulating system under complex working conditions.
In a first aspect, the present application provides a compressor control method applied to a temperature regulation system, where the temperature regulation system includes a compressor, a condenser, and an evaporator, and the compressor is connected with the condenser and the evaporator; the temperature regulating system further comprises a condensing fan and an evaporating fan, wherein the condensing fan is arranged on one side of the condenser, and the evaporating fan is arranged on one side of the evaporator; the method comprises the following steps:
Acquiring the running power of the compressor, the condensing fan and the evaporating fan at the current moment;
calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan;
calculating an offset parameter of the total operating power at the current moment according to the total operating power of the temperature regulating system, the rated power threshold of the temperature regulating system and the offset parameter at the last moment;
determining a target rotational speed of the compressor according to the offset parameter of the total operating power and the expected rotational speed of the compressor;
and generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed.
In a second aspect, the present application also provides a temperature regulation system, the temperature regulation system including a compressor, a condenser, and an evaporator, the compressor being connected to the condenser and the evaporator; the temperature regulating system further comprises a condensing fan and an evaporating fan, wherein the condensing fan is arranged on one side of the condenser, and the evaporating fan is arranged on one side of the evaporator;
The temperature regulation system further includes a controller for implementing the compressor control method as described above.
In a third aspect, the present application also provides a temperature control device comprising a temperature regulation system as described above.
The application provides a compressor control method, a temperature regulation system and temperature control equipment, wherein the running power of a compressor, a condensing fan and an evaporating fan at the current moment is obtained; calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan; calculating the offset parameter of the total operating power at the current moment according to the total operating power of the temperature regulating system, the rated power threshold value of the temperature regulating system and the offset parameter at the last moment; determining a target rotation speed of the compressor according to the offset parameter of the total operation power and the expected rotation speed of the compressor; and generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed. According to the scheme, the offset parameter of the total running power at the current moment is calculated through the total running power at the current moment, the rated power threshold value and the offset parameter of the last moment, and meanwhile, the rotating speed of the compressor is adjusted according to the offset parameter of the total running power and the expected rotating speed of the compressor, so that the rotating speed of the compressor is adjusted in real time, the closed-loop control of the total running power of the temperature regulating system is realized, the excessive power consumption of the temperature regulating system under the complex working condition can be avoided, and the performance of the temperature regulating system under the complex working condition is improved more efficiently.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of an application scenario of a temperature regulation system according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating steps of a method for controlling a compressor according to an embodiment of the present application;
FIG. 3 is a flow chart illustrating steps of another method for controlling a compressor according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a Clark conversion and a park conversion according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a power control loop according to an embodiment of the present application;
FIG. 6 is a schematic block diagram of a temperature regulation system provided by an embodiment of the present application;
FIG. 7 is a schematic block diagram of another temperature regulation system provided by an embodiment of the present application;
fig. 8 is a schematic block diagram of a temperature control device according to an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Fig. 1 is a view of an application scenario of a temperature adjustment system according to an embodiment of the present application. As shown in fig. 1, the compressor control method may be applied to a temperature adjustment system 10, and the temperature adjustment system 10 includes a compressor 11, a condenser 12, and an evaporator 13. The compressor 11 is connected to a condenser 12 and an evaporator 13. The temperature regulation system 10 further includes a condensing fan 14 and an evaporating fan 15. The condensing fan 14 is disposed at one side of the condenser 12, and the evaporating fan 15 is disposed at one side of the evaporator 13.
The condensing fan 14 is used for cooling and ventilation on the condenser 12 side, and the evaporating fan 15 is used for cooling and ventilation on the evaporator 13 side. The compressor 11 may be connected to the condenser 12 through a throttle valve, and the condenser 12 may be connected to the evaporator 13 through an expansion valve. The temperature regulating system 10 can be arranged on temperature control equipment, and the temperature control equipment can be electric equipment such as a household air conditioner, an outdoor air conditioner, a vehicle-mounted refrigerator, a heat exchanger and the like.
Illustratively, in the temperature regulating system 10, the compressor 11 compresses the working medium from low-temperature and low-pressure gas to high-temperature and high-pressure gas, and condenses the gas into medium-temperature and high-pressure liquid through the condenser 12, and the liquid becomes low-temperature and low-pressure liquid after being throttled by the throttle valve. The low-temperature low-pressure liquid working medium is sent into the evaporator 13 through the expansion valve, absorbs heat and evaporates in the evaporator 13 to become low-temperature low-pressure steam, and then is sent into the compressor 11 again, so that the refrigeration cycle is completed. The condensing fan 14 is responsible for cooling and ventilation of one side of the condenser 12 during operation of the condenser 12. The evaporator fan 15 is responsible for cooling and ventilation of one side of the evaporator 13 during operation of the evaporator 13.
Referring to fig. 2, fig. 2 is a schematic step flow chart of a compressor control method according to an embodiment of the present application, where the compressor control method includes:
S101, obtaining the running power of a compressor, a condensing fan and an evaporating fan at the current moment.
In this step, in order to complete the refrigeration and heating control of the temperature regulation system, the operation power of the compressor, the condensing fan and the evaporating fan needs to be accurately obtained before the variable frequency control is performed on the compressor, the condensing fan and the evaporating fan.
In this step, the operation power of the compressor, the condensing fan, and the evaporating fan may be obtained at each control timing. The operating power of the compressor, the condensing fan and the evaporating fan can be obtained at the same time, and the operating power of the compressor, the condensing fan and the evaporating fan can be changed at different times.
In this step, the operation power of the compressor, the condensing fan and the evaporating fan may be obtained directly or obtained through calculation. For example, the operating power of the compressor, the condensing fan and the evaporating fan can be directly read through a power meter, or the operating frequencies of the compressor, the condensing fan and the evaporating fan can be obtained first, and the operating power corresponding to each operating frequency can be determined as the operating power of the compressor, the condensing fan and the evaporating fan in a table look-up mode.
In this step, the operation power of the compressor, the condensing fan, and the evaporating fan may be obtained in different manners. For example, the operating power of the compressor may be obtained by sampling the current of the three-phase circuit of the compressor and performing the calculation based on an approximation. The operating power of the condensing fan and the evaporating fan can be obtained by acquiring the operating frequencies of the condensing fan and the evaporating fan, and the operating power corresponding to the operating frequencies of the condensing fan and the evaporating fan can be determined by looking up a table.
S102, calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan.
In this step, the total operating power of the temperature regulating system is calculated from the operating powers of the compressor, the condensing fan and the evaporating fan. For example, the total operating power of the temperature regulation system may be the sum of the operating powers of the compressor, the condensing fan, and the evaporating fan.
The operating power of the compressor, the condensing fan and the evaporating fan is exemplified by the compressor power, the condensing fan power and the evaporating fan power respectively. Total operating POWER of the temperature regulation system POWER = compressor POWER + condensing fan POWER + evaporating fan POWER.
In this step, the total operating power of the temperature adjustment system may also be calculated according to the sum of the operating powers of the compressor, the condensing fan, and the evaporating fan, and a preset adjustment coefficient. The calculation mode of the total operation power of the temperature regulating system is not particularly limited in the embodiment of the application.
Illustratively, calculating a sum of operating powers of the compressor, the condensing fan, and the evaporating fan; and calculating the product between the sum of the operating powers and a preset regulating coefficient to obtain the total operating power of the temperature regulating system.
S103, calculating the offset parameter of the total operation power at the current moment according to the total operation power of the temperature regulating system, the rated power threshold value of the temperature regulating system and the offset parameter at the last moment.
In this step, the rated power threshold of the temperature regulation system refers to the power of the temperature regulation system when the temperature regulation system is operating normally, and the rated power threshold may be set according to the actual situation of the temperature regulation system, for example, the rated power threshold is 700W.
In this step, the offset parameter power_out is used to make a closed loop adjustment to the total operating POWER so that the adjusted total operating POWER is closer to the rated POWER threshold. The offset parameter at the previous time is an offset parameter for adjusting the total operating power at the previous time. The offset parameter at the first time may be zero or a preset constant, which is not particularly limited in this embodiment.
The offset parameter power_out may be obtained by performing offset adjustment according to an offset value between a rated POWER threshold value and a total operating POWER of the temperature adjustment system, where an offset adjustment manner is, for example, PID (Proportion Integral Differential, proportional integral derivative) algorithm adjustment, PI (Proportion Integral, proportional integral) algorithm adjustment, fuzzy control algorithm adjustment, and the like.
In the working process of the temperature regulating system, a plurality of complex working conditions can be faced, and larger power consumption can be brought. For example, when the temperature regulating system is in a high-temperature environment, the working environment of the gas inside the compressor is complex, the pressure of the internal cavity is large, and under the condition of the same control frequency, the power can be gradually increased along with the rise of the environment temperature and the rise of the temperature of the compressor body. Thus, under complex operating conditions, the total operating power of the temperature regulation system is typically greater than the rated power threshold of the temperature regulation system. Moreover, the power supply of the temperature regulating system cannot meet the continuously increased power demand of the compressor, and when the maximum power is exceeded, power-off protection can occur.
In the step, the total running power of the temperature regulating system at the current moment, the rated power threshold value of the temperature regulating system and the offset parameter of the last moment are comprehensively considered to obtain the offset parameter of the total running power at the current moment, so that the power closed-loop control of the temperature regulating system is realized. In the closed-loop control process of the temperature regulation system, the total running power at different moments can change along with the regulation action of the offset parameter, and the difference between the total running power and the rated power threshold value can be smaller and tend to be stable along with the continuous regulation action of the offset parameter, so that the stable running of the temperature regulation system is ensured, and the abnormal condition that the power is excessive to cause the power failure of the system is avoided.
For example, calculating a deviation value between the total operating power of the temperature regulation system and a rated power threshold; if the deviation value between the total running power at the current moment and the rated power threshold and the deviation parameter at the last moment are all negative values, calculating the deviation parameter of the total running power based on the total running power and the rated power threshold; when the deviation value between the total running power at the current moment and the rated power threshold is positive, calculating the deviation parameter of the total running power based on the total running power and the rated power threshold no matter the deviation parameter at the last moment is negative or positive; when the deviation value between the total operating power at the current moment and the rated power threshold is a negative value and the deviation parameter at the last moment is a positive value, the deviation parameter of the total operating power is determined to be a preset value, and the preset value can be zero or a value approximately equal to zero, and at the moment, the total operating power of the temperature regulating system is regulated and controlled to be near the rated power threshold.
S104, determining the target rotating speed of the compressor according to the offset parameter of the total operating power and the expected rotating speed of the compressor.
In this step, the offset parameter of the total operating power is also used to adjust the rotational speed of the compressor, thereby achieving a closed-loop adjustment of the total operating power. In this step, the desired rotational speed of the compressor refers to the operation rotational speed that the compressor is desired to achieve, and the desired rotational speed may refer to the rotational speed at which the compressor is desired to operate normally. The desired rotational speed of the compressor may be set according to the actual situation of the compressor, for example, the desired rotational speed is 2000RPM.
In this step, the compressor speed is positively correlated with the total operating power of the temperature regulation system. When the rotational speed of the compressor decreases, the total operating power of the temperature regulating system decreases with the decrease in rotational speed. When the rotation speed of the compressor is increased, the total operating power of the temperature regulating system is increased along with the increase of the rotation speed. The total operating power of the temperature control system can thus be adjusted by adjusting the rotational speed of the compressor.
In this step, the target rotation speed of the compressor may be determined according to the sum of the deviation parameter of the total running power and the expected rotation speed of the compressor, or may be determined according to a preset rotation speed calculation formula, for example, the deviation parameter of the total running power and the expected rotation speed of the compressor are input into the preset rotation speed calculation formula, and the obtained calculated value is the target rotation speed of the compressor.
And S105, generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed.
In the step, a rotation speed control instruction is generated based on the target rotation speed, and the rotation speed control instruction is sent to the compressor, so that the compressor is instructed to operate according to the target rotation speed, the rotation speed of the compressor is adjusted, and the total operation power can be adjusted.
In this step, the rotation speed control command may be sent to the compressor at multiple times, and the target rotation speeds in the rotation speed control commands sent at different times may be different, so as to realize closed-loop control of the total operating power of the temperature regulation system, and the variation of the target rotation speeds corresponding to adjacent times may be smaller and tend to be zero, so that the power consumption of the temperature regulation system under the complex working condition can be ensured to remain stable, and the performance of the temperature regulation system under the complex working condition is improved more efficiently.
According to the compressor control method provided by the embodiment, the offset parameter of the total running power at the current moment is calculated through the total running power at the current moment, the rated power threshold and the offset parameter of the last moment, and meanwhile, the rotating speed of the compressor is regulated according to the offset parameter of the total running power and the expected rotating speed of the compressor, so that the closed-loop control of the total running power of the temperature regulating system is realized through the real-time rotating speed regulation of the compressor, the performance degradation of the temperature regulating system due to overhigh power consumption under the complex working condition can be avoided, and the performance of the temperature regulating system under the complex working condition is improved more efficiently.
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of another compressor control method according to an embodiment of the present application.
As shown in fig. 3, the compressor control method includes steps S201 to S207.
And step S201, obtaining the running power of the compressor, the condensing fan and the evaporating fan at the current moment.
In one embodiment, obtaining operating power of a compressor includes: acquiring three-phase current of a three-phase circuit in the compressor; performing Clark conversion (CLARK conversion) on the three-phase current to obtain candidate current parameters; performing PARK transformation (PARK transformation) on the candidate current parameters to obtain target current parameters; inputting the target current parameter into a PI (Proportion Integral, proportional integral) controller for calculation to obtain a target voltage parameter of the compressor; and calculating the product of the target current parameter and the target voltage parameter to obtain the running power of the compressor.
The three-phase current of the three-phase circuit may be the three-phase current of the three-phase circuit at the current time obtained by the current sampling circuit, and the operation power of the compressor at the current time may be rapidly and accurately calculated by performing calculation methods such as clark conversion and park conversion on the three-phase current in the compressor.
The temperature regulation system further comprises a current sampling circuit, wherein the current sampling circuit is connected with a three-phase sampling point of the three-phase circuit, the current sampling circuit can comprise three sampling resistors, each sampling resistor is connected with a phase sampling point of the three-phase circuit, and three-phase currents ia, ib and ic of the three-phase circuit can be sampled in real time through the current sampling circuit. As shown in fig. 4, candidate current parameters iaalpha and Ibeta are obtained by CLARK conversion of the three-phase currents ia, ib, ic. And then, PARK conversion is carried out on the candidate current parameters Ialpha and Ibeta to obtain a target current parameter Iq. The target current parameter Iq is calculated by a PI controller of the temperature regulating system, and the target voltage parameter Uq of the compressor is output. At this time, the compressor power may be obtained through approximate calculation, that is, the product of the target current parameter Iq and the target voltage parameter Uq is calculated, so as to obtain the running power=uq×iq of the compressor at the current moment.
In one embodiment, obtaining the operating power of the condensing fan includes: acquiring the current working frequency of a condensing fan; and searching the operation power corresponding to the current working frequency in a first fan power meter as the operation power of the condensing fan, wherein the first fan power meter records the corresponding relation between the operation power of the condensing fan and the working frequency of the condensing fan.
It should be noted that, the first fan power meter may be generated by counting the operation power of the condensing fan at a plurality of operation frequencies of the condensing fan. The different operating frequencies are characterized by different rotational speeds of the condensing fans. The operation power corresponding to the current working frequency of the condensing fan is searched in the first fan power meter, so that the operation power of the condensing fan at the current moment can be rapidly and accurately obtained.
In an embodiment, the operating power of the evaporating blower is obtained, and the specific implementation may refer to a corresponding example of obtaining the operating power of the condensing blower. For example, the current operating frequency of the evaporating fan is obtained; and searching the operation power corresponding to the current working frequency in a second fan power meter as the operation power of the evaporation fan, wherein the second fan power meter records the corresponding relation between the operation power of the evaporation fan and the working frequency of the evaporation fan.
It should be noted that, the current working frequency of the evaporating fan may be different from the current working frequency of the condensing fan, and the correspondence between the operating power and the working frequency of the evaporating fan and the condensing fan may be inconsistent, so that the recording content of the second fan power meter may be different from the recording content of the first fan power meter. It can be appreciated that the specific obtaining manner of the operation power of the evaporating fan may refer to a corresponding example of obtaining the operation power of the condensing fan, which is not described herein.
The operation power of the condensing fan and the evaporating fan under different working frequencies can be calculated in advance by utilizing a direct current source, and the first fan power meter and the second fan power meter which are respectively corresponding are obtained in a summarizing mode. The first fan power meter is used for describing the corresponding relation between the working frequency and the running power of the condensing fan, and the second fan power meter is used for describing the corresponding relation between the working frequency and the power of the evaporating fan. The record content in the first fan power meter and the second fan power meter is irrelevant to the rotation speeds of the condensing fan and the evaporating fan.
Step S202, calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan.
The total operation power of the temperature regulating system can be calculated according to the sum of the operation power of the compressor, the condensation fan and the evaporation fan.
Illustratively, the operating power P1 of the compressor is calculated by performing clark conversion, park conversion and the like on three-phase current of a three-phase circuit in the compressor, the operating power P2 of the condensing fan is obtained by looking up a table of a first fan power meter, and the operating power P3 of the evaporating fan is obtained by looking up a table of a second fan power meter. Total operating POWER of the temperature regulation system power=operating POWER of the compressor p1+operating POWER of the condensing fan p2+operating POWER of the evaporating fan P3.
Step S203, judging whether the total operation power is larger than a rated power threshold.
The rated power threshold is the power of the temperature regulating system when the temperature regulating system works normally, and the rated power threshold can be set according to the actual condition of the temperature regulating system, for example, the rated power threshold is 700W.
After the total operating POWER of the temperature adjustment system is calculated, the total operating POWER is compared with a preset rated POWER threshold value, so that whether the total operating POWER is larger than the rated POWER threshold value is judged.
And step S204, calculating an offset parameter of the total operating power based on the total operating power and the rated power threshold when the total operating power is greater than the rated power threshold.
When the total operating power is larger than the rated power threshold, the temperature regulating system is possibly under a complex working condition, and the current operating power of the temperature regulating system is higher than the rated power in normal working. Therefore, the offset parameter of the total operating power can be calculated based on the total operating power and the rated power threshold, and the offset parameter is used for adjusting the rotating speed of the compressor, so that the closed-loop adjustment of the total operating power is realized, and the power consumption of the temperature adjusting system under the complex working condition is ensured to be stable.
In one embodiment, a deviation value between the rated power threshold and the total operating power is calculated; and performing deviation adjustment according to the deviation value to obtain a deviation parameter of the total operating power. The deviation value is a difference between the total operating power and the rated power threshold, and when the total operating power is greater than the rated power threshold, the deviation value is a negative value, and the larger the absolute value of the deviation value is, the larger the calculated deviation parameter is. By performing deviation adjustment through the deviation value, the deviation parameter of the total running power can be accurately determined, so that the rotating speed of the compressor can be adjusted in real time according to the deviation parameter.
For example, the total operating POWER is 720W, the rated POWER threshold is 700W, that is, the total operating POWER is >700, and the deviation value is the difference between the rated POWER threshold and the total operating POWER: power_err=700-720= -20.
Illustratively, the deviation value is subjected to deviation adjustment through a PID algorithm, so that the deviation parameter of the total operation power is obtained. Specifically, a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient are obtained; determining a first offset parameter of the total operating power according to a preset proportionality coefficient and a deviation value; calculating a deviation accumulated value according to the deviation values obtained by multiple times of calculation, and determining a second deviation parameter of the total running power according to a preset integral coefficient and the deviation accumulated value; determining a deviation difference value according to the deviation value calculated at the current moment and the deviation value calculated at the previous moment, and determining a third deviation parameter of the total running power according to a preset integral coefficient and the deviation difference value; and calculating the sum of the first offset parameter, the second offset parameter and the third offset parameter to obtain the offset parameter of the total operating power.
Illustratively, the PID algorithm is formulated asWherein u (K) represents an offset parameter, K P Representing a preset proportionality coefficient, K I Representing a preset integral coefficient, K D Represents a preset differential coefficient, e (k) represents a deviation value between the total operating power and a nominal power threshold value, < >>Represents the accumulated value of the deviation, and e (k) -e (k-1) represents the difference value of the deviation.
It should be noted that, the preset proportional coefficient, the preset integral coefficient and the preset differential coefficient are control parameters of the PID algorithm, and may be flexibly set according to actual situations. For example, a preset proportionality coefficient K is set p =1, preset integral coefficient K I =0.01, preset differential coefficient K D =0. In the practical application process, the correlation coefficient can be modified according to practical requirements.
In some embodiments, after obtaining the offset parameter of the total operating power, a trimming process such as rounding may be further performed on the offset parameter to facilitate subsequent calculation processing. Also, a range of values for the offset parameter of the total operating POWER may be set, for example, the output limit of the offset parameter power_out is [ -1, -2500].
Step S205, when the total operation power is smaller than or equal to the rated power threshold, if the offset parameter at the previous moment is a negative value, calculating the offset parameter of the total operation power based on the total operation power and the rated power threshold.
The offset parameter of the total operating power at the current moment is calculated according to the total operating power of the temperature regulating system, the rated power threshold of the temperature regulating system and the offset parameter at the last moment. When the offset parameter at the previous moment is a negative value, for example, the offset parameter at the previous moment is-100, the integral term of the offset parameter at the previous moment is accumulated when the offset parameter at the current moment is calculated, so that the calculated offset parameter at the current moment is discontinuous, frequent adjustment of the rotating speed of the compressor is caused subsequently, and the temperature regulation system is easy to collapse.
Therefore, when the total operating power is less than or equal to the rated power threshold value, it is necessary to take the offset parameter at the previous time as a negative value as the second condition. And when the offset parameter at the previous moment is a negative value, calculating the offset parameter of the total operating power based on the total operating power and the rated power threshold value, namely, reentering power closed-loop control, so as to eliminate the influence of the integral term of the historical offset parameter on the rotation speed control of the compressor at the current moment.
Illustratively, calculating the offset parameter for the total operating power based on the total operating power and the rated power threshold includes: calculating a deviation value between the total operating power of the temperature regulating system and a rated power threshold value; and performing deviation adjustment according to the deviation value to obtain a deviation parameter of the total operating power. The specific implementation process of this example can refer to the corresponding processes of step S103 and step S204, and this embodiment is not described herein.
In one embodiment, the compressor control method further comprises: and when the total operating power is smaller than or equal to the rated power threshold, if the offset parameter at the last moment is a positive value, determining the offset parameter of the total operating power at the current moment as a zero value.
If the offset parameter at the previous moment is a positive value, the integral term of the offset parameter at the previous moment does not affect the calculation of the offset parameter at the current moment, and the premise of the judgment condition is that the total running power is smaller than or equal to the rated power threshold, which indicates the total running power at the current moment and the power range adjusted to the normal working state, so that the phenomenon of performance degradation caused by overhigh power consumption does not occur, and the offset parameter of the total running power at the current moment can be determined to be zero, thereby ending the power closed loop control.
Step S206, determining the target rotating speed of the compressor according to the offset parameter of the total operating power and the expected rotating speed of the compressor.
The target rotation speed of the compressor can be in direct proportion to the deviation parameter of the total operation power, namely, the smaller the deviation parameter is, the smaller the target rotation speed omega_ref of the compressor is, the lower the amplitude of the control of the rotation speed of the compressor is, and the rotation speed and the working frequency of the compressor are kept stable until the total operation power of the temperature regulating system is regulated to be close to a rated power threshold value such as 700W.
In one embodiment, a sum of an offset parameter of the total operating power and a desired rotational speed of the compressor is calculated to obtain a target rotational speed of the compressor. Wherein the offset parameter is negative, the offset parameter is positively correlated with the target rotational speed, and the absolute value of the offset parameter is inversely correlated with the target rotational speed.
Illustratively, the current offset parameter PWER_OUT is output by the PI controller as-100, and the desired speed spd_ref of the compressor is 2100RPM. Target rotation speed ω_ref=pwer_out+spd_ref=2100+ (-100) =2000 RPM of the compressor.
Step S207, a rotation speed control instruction is generated based on the target rotation speed, and the rotation speed control instruction is sent to the compressor, wherein the rotation speed control instruction is used for instructing the compressor to operate according to the target rotation speed.
The rotation speed control command may carry the target rotation speed, and after the rotation speed control command is sent to the compressor, the compressor may operate according to the target rotation speed in the rotation speed control command. The rotating speed control instruction can be continuously sent to the compressor at a plurality of moments, so that the closed-loop control of the operating power of the temperature regulating system is realized, the change amount of the target rotating speed can be smaller and tends to be zero, the power consumption of the temperature regulating system under a complex working condition can be ensured to be stable, and the performance of the temperature regulating system can be improved more efficiently.
For example, the target rotational speed is 2000RPM, and after a rotational speed control command carrying the target rotational speed is transmitted to the compressor, the operating rotational speed of the compressor is updated to 2000RPM. When the rotational speed of the compressor decreases, the total operating power of the temperature adjustment system decreases as the rotational speed of the compressor decreases, thereby adjusting the total operating power of the temperature adjustment system.
In an embodiment, if it is determined that the total operating POWER of the temperature regulation system is still greater than the rated POWER threshold according to the target rotational speed ω_ref of the compressor, the PI controller continues to output a new offset parameter power_out, and determines a new target rotational speed ω_ref according to the new offset parameter power_out and the desired rotational speed spd_ref of the compressor, and outputs a new rotational speed control command to the compressor according to the new target rotational speed ω_ref, so as to control the compressor to operate according to the new target rotational speed ω_ref, so that the rotational speed of the compressor is increasingly close to the desired rotational speed, thereby improving the operating performance of the temperature regulation system.
Illustratively, the ambient temperature is 45 degrees celsius, the user sets the mode of the temperature adjustment system to a refrigeration MAX mode, where the maximum speed of the compressor is 2100RPM, the initial speed is 1800RPM, the evaporation fan PWM is 70%, and the condensation fan maximum PWM is 70%. According to the control method of the compressor, after a user starts up and operates, the system is in a refrigeration MAX working state, at the moment, the throttle control quantity of the evaporating fan is 1500PWM, the power is checked into 30W, the throttle control quantity of the condensing fan is dynamically adjusted within the range of 30-70% according to the temperature of the condensing pipe at the moment, the running power is obtained through the check, and the running power range is 9W-57W. When the compressor starts to work, the frequency is 60HZ (1800 RPM), then the rotating speed of the compressor gradually rises to the expected rotating speed 2100RPM, the running power is increased along with the rising of the temperature of the compressor body along with the time after the compressor works, the ambient temperature is high, the internal gas pressure is increased, and the running power gradually tends to critical protection power along with the rising of the internal gas pressure. The rated power threshold is set to 700W, i.e., it is desirable to limit the operating power of the temperature regulation system to 700W. When the total operation power of the temperature regulating system exceeds the rated power threshold value of 700W, the power closed loop of the compressor control method starts to work, and the expected frequency of the compressor is reduced through the output of the power closed loop, so that the power requirement can be reduced, the temperature regulating system is in the operation state of power limiting control, the stable refrigeration operation of the system is ensured, the power consumption of the temperature regulating system is reduced, and the performance of the temperature regulating system is improved more efficiently.
According to the compressor control method provided by the embodiment, when the total operation power of the temperature regulation system is larger than the rated power threshold, the offset parameter of the total operation power is calculated based on the total operation power and the rated power threshold, and the rotating speed of the compressor is regulated according to the offset parameter of the total operation power and the expected rotating speed of the compressor, so that the closed-loop control of the total operation power of the temperature regulation system is realized through the real-time rotating speed regulation of the compressor, the performance degradation of the temperature regulation system due to the overhigh power consumption under the complex working condition can be avoided, and the working performance under the complex working condition is improved more efficiently.
According to the compressor control method provided by the embodiment, when the total running power of the temperature regulating system is smaller than or equal to the rated power threshold, if the offset parameter of the previous moment is a negative value, the offset parameter of the total running power is calculated based on the total running power and the rated power threshold, and the rotating speed of the compressor is regulated according to the offset parameter of the total running power and the expected rotating speed of the compressor, so that the influence of the integral term of the historical offset parameter on the rotating speed control of the compressor at the current moment can be eliminated, the rotating speed control of the subsequent compressor is not influenced, and the performance of the temperature regulating system under the complex working condition is improved more efficiently.
Exemplary, as shown in fig. 5, fig. 5 is a schematic diagram of a power control loop according to an embodiment of the present application, which aims to implement closed-loop adjustment of total operating power by adjusting the rotational speed of a compressor. The specific implementation steps of the power control loop are as follows:
step 1: the total operating POWER of the temperature regulating system, power=the operating POWER of the compressor + the operating POWER of the condensing fan + the operating POWER of the evaporating fan, is obtained.
The operation power of the compressor is determined according to real-time sampling data of a three-phase circuit of the compressor. The operation power of the condensing fan and the operation power of the evaporating fan can be obtained through an electric control table lookup according to the operation power under different frequencies. In specific implementation, the running power of the condensing fan and the evaporating fan under different frequencies can be calculated by utilizing the direct current source in advance, and a corresponding power list is obtained in a summarizing mode. The power list is used for describing the corresponding relation between the working frequency and the running power of the condensing fan and the corresponding relation between the working frequency and the power of the evaporating fan.
Step 2: and feeding the calculated total operating POWER POWER back to the closed-loop POWER control shown in FIG. 5, and determining whether a preset PI regulation condition is met or not based on the total operating POWER POWER and the offset parameter POWER_OUT at the last moment.
In fig. 5, "|" in the judgment box indicates that the condition 1 (POWER > power_ref) and the condition 2 (power_out < 0) are judged in order. When the judgment result of the condition 1 is yes, the condition 2 is not judged any more, and the judgment result of the whole is yes. Only if the judgment result of the condition 1 is no, the judgment result of the condition 2 is no, and the whole result is no.
If the total operating POWER is greater than the rated POWER threshold power_ref (e.g., 700W), or the control amount power_out of the previous cycle is less than 0, it is determined that the preset PI regulation condition is satisfied. For example: the air conditioner is operated in a cooling MAX mode, when the desired rotational speed spd_ref of the compressor is 2100RPM. In the case of an operating mode determination, the desired rotational speed spd_ref of the compressor is constant.
In the first adjustment period, the offset parameter power_out at the previous time is 0, and the calculated total operating POWER is 720W, i.e., the total operating POWER > rated POWER threshold power_ref (e.g., 700W), at which time the POWER error power_err=700-power= -20. And (3) determining that the condition 1 for the preset PI adjustment is met, and executing the step (3).
Step 3: the offset parameter power_out at the current time is output through the PI controller (after the PI controller in fig. 5).
The POWER error power_err=700-POWER is negative, and the larger the POWER error power_err is, the larger the negative value of the offset parameter power_out output at the current moment through the PI controller is, and the larger the adjustment amplitude of the target rotation speed omega_ref of the compressor is. The output limit of the offset parameter POWER _ OUT at the current time is [ -1, -2500].
After being calculated by the PI controller, the offset parameter POWER_OUT at the current moment is output as a negative number, and the POWER_OUT is a virtual control quantity at the current moment and is used for adjusting the rotating speed expected value spd_ref in the current working mode. Here, the power_out at the current time is not obtained based on the power_out of the previous cycle. But the PI controller is derived from the offset parameter 720W at the current time.
Step 4: and outputting the target rotating speed omega_ref of the compressor according to the offset parameter POWER_OUT at the current moment and the expected rotating speed Spd_ref of the compressor.
Where ω_ref is the rotational speed estimated by the estimator. The larger the PWER_OUT is, the smaller the omega_ref value is, and the lower the working speed of the compressor is, until the total operating power of the temperature regulating system is regulated to be about 700W, and the compressor frequency is stable.
Assuming that the PI controller outputs pwer_out of-100 in the first period adjustment, a compressor rotation speed feedback value ω_ref=pwer_out+spd_ref=2100+ (-100) =2000 RPM is output. After the power control loop is adjusted, the compressor operating speed is updated to 2000RPM, and when the compressor speed is reduced, the total operating power is reduced as the speed is reduced, thereby adjusting the total operating power of the temperature regulation system.
Step 5: if it is determined that the total operating POWER for the second period is still greater than the rated POWER threshold POWER ref, i.e., the condition >700W is still satisfied, based on the compressor target speed ω_ref, a new power_out is continuously output through the PI controller, and a new ω_ref is output based on the new power_out and spd_ref.
In the second adjustment period, since the POWER feedback power_out of the first period is-100, it is assumed that the POWER feedback POWER calculated at this time is 710W, that is, POWER feedback POWER >700, and the POWER error is the difference between the POWER expectation and the POWER feedback: power_err=710-power= -10. And 3, determining that the preset PI regulating condition is met, and continuing to execute the step 3.
Step 6, in parallel with step 5: if it is determined that the total operating POWER for the second period is less than the POWER rating threshold POWER ref based on the target speed ω_ref of the compressor, the first POWER adjustment condition is exited without entering the POWER control loop.
Since the integral term output of the power_out of the first period of the PI controller at this time also exists, for example, power_out= -100, the last control output is accumulated when the POWER control loop is next entered, so that the power_out of the POWER control loop output is discontinuous, and thus the target rotation speed is frequently regulated, and the temperature regulation system is easily crashed. It is therefore necessary to enter the power control loop with a history output less than 0 as a second condition, thereby eliminating the influence of history integration on the next control.
Similar to step 6, after step 5, if the total operating POWER of the third period is less than the POWER rating threshold power_ref, the first condition, POWER > power_ref, is exited at this point and the POWER control loop is not entered.
Referring to fig. 6, fig. 6 is a schematic block diagram of a temperature adjustment system according to an embodiment of the application.
As shown in fig. 6, the temperature regulation system 300 includes a compressor 310, a condenser 320, and an evaporator 330, the compressor 310 being connected to the condenser 320, the evaporator 330; the temperature regulation system 300 further includes a condensing fan 340 and an evaporating fan 350, the condensing fan 340 is disposed at one side of the condenser 320, and the evaporating fan 350 is disposed at one side of the evaporator 330. The temperature regulation system 100 further includes a controller 360, the controller 360 being connected to the compressor 310, the controller 360 being configured to implement a compressor control method according to any one of the embodiments of the present application. Illustratively, the controller 360 is configured to send rotational speed control commands to the compressor 310.
In some embodiments, the controller 360 may also be connected to the condenser 320 and the evaporator 330, and used to control the condenser 320 and the evaporator 330, which is not particularly limited in this embodiment.
Illustratively, as shown in FIG. 7, the temperature regulation system 300 further includes a four-way valve 370 and an electronic expansion valve 380; the compressor 310 is connected to the condenser 320 and the evaporator 330 through a four-way valve 370, and the electronic expansion valve 380 is connected between the condenser 320 and the evaporator 330. The controller 360 is further configured to perform variable frequency control on the compressor 310, the condensing fan 340, and the evaporating fan 350, and the controller 360 is further configured to perform opening control on the four-way valve 370 and the electronic expansion valve 380, thereby completing corresponding refrigeration and heating control.
It will be appreciated by those skilled in the art that the structures shown in fig. 6 and 7 are merely block diagrams of portions of structures associated with aspects of the present application and are not intended to limit the temperature regulation system 300 to which aspects of the present application may be applied, and that a particular temperature regulation system 300 may include more or less components than those shown, or may be combined with certain components, or may have different arrangements of components.
Wherein in one embodiment the controller 360 is adapted to run a computer program stored in a memory to implement the steps of:
acquiring the running power of the compressor, the condensing fan and the evaporating fan at the current moment;
calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan;
calculating an offset parameter of the total operating power at the current moment according to the total operating power of the temperature regulating system, the rated power threshold of the temperature regulating system and the offset parameter at the last moment;
determining a target rotational speed of the compressor according to the offset parameter of the total operating power and the expected rotational speed of the compressor;
and generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed.
It should be noted that, for convenience and brevity of description, the specific operation process of the temperature adjustment system 300 described above may refer to the corresponding process in the foregoing embodiment of the compressor control method, which is not repeated herein.
Referring to fig. 8, fig. 8 is a schematic block diagram illustrating a structure of a temperature control apparatus according to an embodiment of the present application.
As shown in fig. 8, the temperature control apparatus 400 includes a temperature regulation system 410.
The temperature control device 400 may be electric equipment such as a home air conditioner, an outdoor air conditioner, a washing machine, a water heater, a mower, and the like. The temperature regulation system 410 may include the temperature regulation system 300 of the previous embodiment. The temperature control apparatus 400 may also be provided with circuit units such as a main control circuit, an inverter circuit, a rectifying circuit, a voltage converting circuit, a voltage stabilizing circuit, a power supply circuit, and the like.
Illustratively, the temperature regulating system includes a compressor, a condenser, and an evaporator, and further includes a four-way valve and an electronic expansion valve. The compressor is connected with the condenser and the evaporator respectively through the four-way valve, and the electronic expansion valve is connected between the condenser and the evaporator. The temperature regulation system also comprises a condensing fan and an evaporating fan. Wherein, the condensing fan sets up in condenser one side, and the evaporating fan sets up in evaporimeter one side.
It should be noted that, for convenience and brevity of description, the specific working process of the temperature control apparatus 400 described above may refer to the corresponding process in the foregoing embodiment of the compressor control method, and will not be described herein.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present application without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A compressor control method, characterized by being applied to a temperature regulation system, wherein the temperature regulation system comprises a compressor, a condenser and an evaporator, and the compressor is connected with the condenser and the evaporator; the temperature regulating system further comprises a condensing fan and an evaporating fan, wherein the condensing fan is arranged on one side of the condenser, and the evaporating fan is arranged on one side of the evaporator; the method comprises the following steps:
acquiring the running power of the compressor, the condensing fan and the evaporating fan at the current moment;
Calculating the total operation power of the temperature regulating system according to the operation power of the compressor, the condensing fan and the evaporating fan;
calculating an offset parameter of the total operating power at the current moment according to the total operating power of the temperature regulating system, the rated power threshold of the temperature regulating system and the offset parameter at the last moment;
determining a target rotational speed of the compressor according to the offset parameter of the total operating power and the expected rotational speed of the compressor;
and generating a rotating speed control instruction based on the target rotating speed, and sending the rotating speed control instruction to the compressor, wherein the rotating speed control instruction is used for indicating the compressor to operate according to the target rotating speed.
2. The compressor control method of claim 1, wherein calculating the offset parameter of the total operating power at the current time based on the total operating power of the temperature adjustment system, the rated power threshold of the temperature adjustment system, and the offset parameter at the previous time comprises:
judging whether the total operating power is greater than the rated power threshold;
calculating an offset parameter of the total operating power based on the total operating power and the rated power threshold when the total operating power is greater than the rated power threshold;
And when the total operating power is smaller than or equal to the rated power threshold, if the offset parameter at the previous moment is a negative value, calculating the offset parameter of the total operating power based on the total operating power and the rated power threshold.
3. The compressor control method of claim 2, wherein the calculating an offset parameter of the total operating power based on the total operating power and the rated power threshold value comprises:
calculating a deviation value between the rated power threshold value and the total operating power;
and performing deviation adjustment according to the deviation value to obtain the deviation parameter of the total running power.
4. The compressor control method of claim 3, wherein said performing a deviation adjustment based on said deviation value to obtain a deviation parameter of said total operating power comprises:
acquiring a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient;
determining a first offset parameter of the total operating power according to the preset proportionality coefficient and the offset value;
calculating a deviation accumulated value according to the deviation values obtained by multiple times of calculation, and determining a second deviation parameter of the total running power according to the preset integral coefficient and the deviation accumulated value;
Determining a deviation difference value according to the deviation value calculated at the current moment and the deviation value calculated at the previous moment, and determining a third deviation parameter of the total running power according to the preset integral coefficient and the deviation difference value;
and calculating the sum of the first offset parameter, the second offset parameter and the third offset parameter to obtain the offset parameter of the total operating power.
5. The compressor control method according to claim 2, characterized in that the compressor control method further comprises:
and when the total operating power is smaller than or equal to the rated power threshold, if the offset parameter at the previous moment is a positive value, determining the offset parameter of the total operating power at the current moment as a zero value.
6. The compressor control method according to claim 1, wherein the determining the target rotational speed of the compressor according to the offset parameter of the total operating power and the desired rotational speed of the compressor includes:
and calculating the sum of the offset parameter of the total running power and the expected rotating speed of the compressor to obtain the target rotating speed of the compressor.
7. The compressor control method according to any one of claims 1 to 6, wherein obtaining the operating power of the compressor comprises:
Acquiring three-phase current of a three-phase circuit in the compressor;
performing Clark transformation on the three-phase current to obtain candidate current parameters;
performing park transformation on the candidate current parameters to obtain target current parameters;
inputting the target current parameter into a PI controller for calculation to obtain a target voltage parameter of the compressor;
and calculating the product of the target current parameter and the target voltage parameter to obtain the running power of the compressor.
8. The compressor control method of any one of claims 1 to 6, wherein obtaining the operating power of the condensing fan comprises:
acquiring the current working frequency of the condensing fan;
and searching the operation power corresponding to the current working frequency in a first fan power table as the operation power of the condensing fan, wherein the first fan power table records the corresponding relation between the operation power of the condensing fan and the working frequency of the condensing fan.
9. A temperature regulating system, characterized in that the temperature regulating system comprises a compressor, a condenser and an evaporator, wherein the compressor is connected with the condenser and the evaporator; the temperature regulating system further comprises a condensing fan and an evaporating fan, wherein the condensing fan is arranged on one side of the condenser, and the evaporating fan is arranged on one side of the evaporator;
The temperature regulation system further comprises a controller connected to the compressor, the controller being configured to implement the compressor control method according to any one of claims 1 to 7.
10. A temperature control device, characterized in that it comprises a temperature regulation system according to claim 9.
CN202310630022.5A 2023-05-30 2023-05-30 Compressor control method, temperature adjusting system and temperature control equipment Pending CN116678148A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116892535A (en) * 2023-09-11 2023-10-17 江苏拓米洛高端装备股份有限公司 Condensing fan control method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116892535A (en) * 2023-09-11 2023-10-17 江苏拓米洛高端装备股份有限公司 Condensing fan control method and device
CN116892535B (en) * 2023-09-11 2023-11-24 江苏拓米洛高端装备股份有限公司 Condensing fan control method and device

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