CN110145905A - A kind of control method and device of compressor - Google Patents
A kind of control method and device of compressor Download PDFInfo
- Publication number
- CN110145905A CN110145905A CN201910336387.0A CN201910336387A CN110145905A CN 110145905 A CN110145905 A CN 110145905A CN 201910336387 A CN201910336387 A CN 201910336387A CN 110145905 A CN110145905 A CN 110145905A
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- Prior art keywords
- compressor
- temperature
- difference
- temperature deviation
- deviation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
-
- 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
- F25B2600/021—Inverters therefor
-
- 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
- F25B2600/0251—Compressor control by controlling speed with on-off operation
-
- 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
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention relates to Compressor Technology fields, and in particular to a kind of control method and device of compressor, first with the delivery temperature and suction temperature of setpoint frequency acquisition compressor；According to collected delivery temperature and target exhaust temperature, delivery temperature deviation is calculated；According to collected suction temperature and target suction temperature, suction temperature deviation is calculated: to calculate mean temperature deviation according to delivery temperature deviation and suction temperature deviation；And then calculate the difference of mean temperature deviation and temperature deviation threshold value；The running frequency of compressor is finally adjusted according to the difference, the present invention improves the synergistic effect of entire air-conditioning system.
Description
Technical field
The present invention relates to Compressor Technology fields, and in particular to a kind of control method and device of compressor.
Background technique
In recent years, with the fast development of frequency conversion control technique and the popularization of energy-efficient concept, convertible frequency air-conditioner obtains fast
It promotes and applies fastly.Convertible frequency air-conditioner adjusts the speed of compressor rotary speed by changing compressor frequency of supply to reach control room
The purpose of temperature, has many advantages, such as that indoor temperature fluctuation is small, power consumption is few, comfort level is high.
Compressor air suction temperature refers to from the refrigerant temperature before compressor air suction shut-off valve.In order to guarantee compressor
Safe handling prevents liquid hammer damage caused by compressor, it is desirable that suction temperature is higher than evaporating temperature, i.e., should have certain
The degree of superheat.When suction temperature is excessively high, i.e., when the degree of superheat is excessive, it will lead to compressor exhaust temperature raising.Suction temperature is too low,
Then illustrate that refrigerant evaporates not exclusively in evaporator, both reduces evaporator heat transfer efficiency, the sucking of moist steam will form again
To the liquid hammer of compressor.
Convertible frequency air-conditioner also typically includes electric expansion valve, and the effect of electric expansion valve is through control aperture regulation overheat
The size of degree, specific control method are as follows: get evaporator coil temperature Tc, compressor return air temperature using temperature sensor
To, to obtain the temperature difference SH of compressor return air temperature To Yu evaporator coil temperature Tc, i.e. degree of superheat SH=To-Tc；It incites somebody to action again
The target superheat degree Δ SH of degree of superheat SH and setting out compare, to determine the opening size of electronic expansion valve.
When the practical degree of superheat is greater than target superheat degree, need to adjust target superheat degree as early as possible, in the prior art, often
The aperture of electric expansion valve is only adjusted, without considering the control to compressor, electric expansion valve and compressor are mutually independent
The problem of operating, electric expansion valve is easy to appear toning, cause the synergistic effect of entire air-conditioning system relatively low.
Summary of the invention
The purpose of the present invention is to provide a kind of control method and device of compressor, it is intended to improve entire air-conditioning system
Synergistic effect.
To achieve the goals above, the present invention the following technical schemes are provided:
A kind of control method of compressor, comprising the following steps:
With the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
According to collected delivery temperature and target exhaust temperature, delivery temperature deviation is calculated；According to collected suction
Temperature degree and target suction temperature, calculate suction temperature deviation:
According to delivery temperature deviation and suction temperature deviation, mean temperature deviation is calculated；
Calculate the difference of mean temperature deviation and temperature deviation threshold value；
The running frequency of compressor is adjusted according to the difference.
Further, the running frequency for adjusting compressor according to the difference specifically includes:
As the difference > 0, the mapping relations between compressor operating frequency regulated quantity and the difference are obtained；
The running frequency of compressor is adjusted according to the mapping relations.
Further, the running frequency that compressor is adjusted according to the difference further include:
It is initial opening by the aperture of electric expansion valve when electric on the compressor, after meeting compressor start condition, institute
State compressor start operation.
Further, the method also includes:
When difference≤0, and when the aperture > aperture threshold value of the electric expansion valve, the running frequency of the compressor
It remains unchanged.
A kind of control device of compressor, comprising the following steps:
Acquisition module, for the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
Temperature deviation computing module, for calculating exhaust temperature according to collected delivery temperature and target exhaust temperature
Spend deviation；And according to collected suction temperature and target suction temperature, calculate suction temperature deviation:
Average deviation computing module, for it is inclined to calculate mean temperature according to delivery temperature deviation and suction temperature deviation
Difference；
Difference calculating module, for calculating the difference of mean temperature deviation Yu temperature deviation threshold value；
Adjustment module, for adjusting the running frequency of compressor according to the difference.
Further, the adjustment module is specifically used for: as the difference > 0, obtaining compressor operating frequency regulated quantity
With the mapping relations between the difference；
The running frequency of compressor is adjusted according to the mapping relations.
Further, the adjustment module is also used to:
It is initial opening by the aperture of electric expansion valve when electric on the compressor, after meeting compressor start condition, institute
State compressor start operation.
Further, the adjustment module is also used to:
When difference≤0, and when the aperture > aperture threshold value of the electric expansion valve, the running frequency of the compressor
It remains unchanged.
The beneficial effects of the present invention are: the present invention discloses a kind of control method and device of compressor, first to set frequency
The delivery temperature and suction temperature of rate acquisition compressor；According to collected delivery temperature and target exhaust temperature, the row of calculating
Gas temperature deviation；According to collected suction temperature and target suction temperature, suction temperature deviation is calculated: thus according to exhaust
Temperature deviation and suction temperature deviation, calculate mean temperature deviation；And then calculate mean temperature deviation and temperature deviation threshold value
Difference；The running frequency of compressor is finally adjusted according to the difference, the present invention improves the collaboration effect of entire air-conditioning system
It answers.
Detailed description of the invention
The invention will be further described with example with reference to the accompanying drawing.
Fig. 1 is a kind of flow diagram of the control method of compressor of the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the control device of compressor of the embodiment of the present invention.
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel are obtained without making creative work so other embodiments, belong to protection scope of the present invention.
With reference to Fig. 1, a kind of control method of compressor provided in an embodiment of the present invention, comprising the following steps:
Step S100, with the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
Step S200, according to collected delivery temperature and target exhaust temperature, delivery temperature deviation is calculated；According to adopting
The suction temperature and target suction temperature collected, calculates suction temperature deviation:
In one embodiment, the delivery temperature Pian Cha ⊿ Td=actual exhaust air temperature Tout- target exhaust temperature Td,
Ji , ⊿ Td=Tout-Td；The practical suction temperature Tin- target suction temperature Ts of suction temperature Pian Cha ⊿ Ts=, i.e. , ⊿ Ts
=Tin-Ts.
Step S300, according to delivery temperature deviation and suction temperature deviation, mean temperature deviation is calculated；
In one embodiment, mean temperature Pian Cha ⊿ T=(delivery temperature Pian Cha ⊿ Td+ suction temperature deviation is calculated
⊿ Ts)/2, i.e. , ⊿ T=(⊿ Td+ ⊿ Ts)/2.
Step S400, the difference of mean temperature deviation and temperature deviation threshold value is calculated；
In one embodiment, the equal temperature deviation ⊿ T- temperature deviation threshold value ⊿ T0 of the difference value ⊿ Tc=.
Step S500, the running frequency of compressor is adjusted according to the difference.
In one embodiment, between the Cha Zhi ⊿ Tc and compressor operating frequency Tiao Jie Liang ⊿ f there are mapping relations,
By feeding back compressor operating frequency tune section amount ⊿ f to compressor, to adjust compressor operating frequency.
In the present embodiment, by the delivery temperature and suction temperature of compressor in acquisition system, in collected exhaust temperature
When degree and collected suction temperature are more than certain threshold value, the running frequency of compressor is adjusted, suction can be combined by having reached
Gas degree of superheat temperature and the delivery temperature degree of superheat, ensure that system high pressure and delivery temperature, and taken into account suction temperature, keep away
Exempt from the hidden danger that refrigerant returns liquid, substantially increases the effect of the reliability of operation of air conditioner.
Wherein, air-conditioning is the system for including electric expansion valve, solves temperature in the prior art and controls single dependence electricity
Sub- expansion valve influences system reliability of operation problem.It avoids the problem that toning occurs in electric expansion valve, improves entire air-conditioning
The synergistic effect of system.
As further improvement of this embodiment, the step S500 includes:
As the Cha Zhi ⊿ Tc > 0, inquiring the difference and the operation of preset compressor is reflecting between rate regulated quantity
Relationship is penetrated, to obtain compressor operating frequency regulated quantity.
Further, the running frequency of compressor is adjusted according to the mapping relations.
In one embodiment, if the running frequency of compressor described in t moment is f (t), then, the operation after the adjusting
Frequency f (t+1)=compressor running frequency f (t)-compressor operating frequency Tiao Jie Liang ⊿ f, that is, f (t+1)=f (t)-⊿ f.
By presetting the mapping relations of compressor operating frequency regulated quantity and difference, when more than temperature deviation threshold value
When, reduce compressor operating frequency, to directly obtain compressor operating frequency regulated quantity by difference.
As further improvement of this embodiment, for the starting operation for ensureing compressor, the step S500 further include:
When electric on the compressor, the aperture of the electric expansion valve is initial opening, after meeting compressor start condition,
The compressor start operation.
As further improvement of this embodiment, the step S500 further include:
When Tc≤0 Cha Zhi ⊿, and when the aperture > aperture threshold value of the electric expansion valve, the operation of the compressor
Frequency remains unchanged.
In the present embodiment, when the aperture of electric expansion valve is more than aperture threshold value, the running frequency of compressor is tieed up and is carried out
Limitation, effectively avoids the problem that toning occurs in electric expansion valve.
With reference to Fig. 2, the embodiment of the present invention also provides a kind of control device of compressor, comprising:
Acquisition module 100, for the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
Temperature deviation computing module 200, for calculating exhaust according to collected delivery temperature and target exhaust temperature
Temperature deviation；And according to collected suction temperature and target suction temperature, calculate suction temperature deviation:
Average deviation computing module 300, for calculating mean temperature according to delivery temperature deviation and suction temperature deviation
Deviation；
Difference calculating module 400, for calculating the difference of mean temperature deviation Yu temperature deviation threshold value；
Adjustment module 500, for adjusting the running frequency of compressor according to the difference.
As further improvement of this embodiment, the adjustment module 500 is used for: as the difference > 0, obtaining compression
Mapping relations between machine running frequency regulated quantity and the difference；And the operation of compressor is adjusted according to the mapping relations
Frequency.
As further improvement of this embodiment, the adjustment module 500 is also used to: when electric on the compressor, by electronics
The aperture of expansion valve is initial opening, after meeting compressor start condition, the compressor start operation.
As further improvement of this embodiment, the adjustment module 500 is also used to: when difference≤0, and the electricity
When the aperture > aperture threshold value of sub- expansion valve, the running frequency of the compressor is remained unchanged.
The above, only presently preferred embodiments of the present invention, the invention is not limited to above embodiment, as long as
It reaches technical effect of the invention with identical means, all should belong to protection scope of the present invention.
Claims (8)
1. a kind of control method of compressor, which comprises the following steps:
With the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
According to collected delivery temperature and target exhaust temperature, delivery temperature deviation is calculated；According to collected air-breathing temperature
Degree and target suction temperature, calculate suction temperature deviation:
According to delivery temperature deviation and suction temperature deviation, mean temperature deviation is calculated；
Calculate the difference of mean temperature deviation and temperature deviation threshold value；
The running frequency of compressor is adjusted according to the difference.
2. a kind of control method of compressor according to claim 1, which is characterized in that described to be adjusted according to the difference
The running frequency of compressor specifically includes:
As the difference > 0, the mapping relations between compressor operating frequency regulated quantity and the difference are obtained；
The running frequency of compressor is adjusted according to the mapping relations.
3. a kind of control method of compressor according to claim 2, which is characterized in that described to be adjusted according to the difference
The running frequency of compressor further include:
It is initial opening by the aperture of electric expansion valve when electric on the compressor, after meeting compressor start condition, the pressure
The starting operation of contracting machine.
4. a kind of control method of compressor according to claim 3, which is characterized in that the method also includes:
When difference≤0, and when the aperture > aperture threshold value of the electric expansion valve, the running frequency of the compressor is kept
It is constant.
5. a kind of control device of compressor characterized by comprising
Acquisition module, for the delivery temperature and suction temperature of setpoint frequency acquisition compressor；
Temperature deviation computing module, for it is inclined to calculate delivery temperature according to collected delivery temperature and target exhaust temperature
Difference；And
According to collected suction temperature and target suction temperature, suction temperature deviation is calculated:
Average deviation computing module, for calculating mean temperature deviation according to delivery temperature deviation and suction temperature deviation；
Difference calculating module, for calculating the difference of mean temperature deviation Yu temperature deviation threshold value；
Adjustment module, for adjusting the running frequency of compressor according to the difference.
6. a kind of control device of compressor according to claim 5, which is characterized in that the adjustment module is specifically used
In: as the difference > 0, obtain the mapping relations between compressor operating frequency regulated quantity and the difference；
The running frequency of compressor is adjusted according to the mapping relations.
7. a kind of control device of compressor according to claim 5, which is characterized in that the adjustment module is also used to:
It is initial opening by the aperture of electric expansion valve when electric on the compressor, after meeting compressor start condition, the pressure
The starting operation of contracting machine.
8. a kind of control device of compressor according to claim 7, which is characterized in that the adjustment module is also used to:
When difference≤0, and when the aperture > aperture threshold value of the electric expansion valve, the running frequency of the compressor is kept
It is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336387.0A CN110145905A (en) | 2019-04-25 | 2019-04-25 | A kind of control method and device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336387.0A CN110145905A (en) | 2019-04-25 | 2019-04-25 | A kind of control method and device of compressor |
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| CN110145905A true CN110145905A (en) | 2019-08-20 |
Family
ID=67594463
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| CN201910336387.0A Pending CN110145905A (en) | 2019-04-25 | 2019-04-25 | A kind of control method and device of compressor |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275700A (en) * | 2000-06-02 | 2000-12-06 | 海尔集团公司 | Improved refrigerating system for one driving multiple-unit air conditioner |
| US20100205989A1 (en) * | 2007-04-24 | 2010-08-19 | Hunter Manufacturing Co. | Environmental control unit for harsh conditions |
| CN101821565A (en) * | 2007-10-08 | 2010-09-01 | 艾默生环境优化技术有限公司 | System and method for calculating parameters for refrigeration system with variable speed compressor |
| CN102563814A (en) * | 2012-02-08 | 2012-07-11 | 广东志高空调有限公司 | Cloud air conditioning system based on cloud computation technology |
| WO2013016403A1 (en) * | 2011-07-26 | 2013-01-31 | Carrier Corporation | Temperature control logic for refrigeration system |
| WO2015006925A1 (en) * | 2013-07-16 | 2015-01-22 | 广东美芝制冷设备有限公司 | Air-supplying enthalpy-adding air-conditioning system and control method therefor |
| CN104676941A (en) * | 2009-09-30 | 2015-06-03 | 赛默飞世尔科技(阿什维尔)有限责任公司 | Refrigeration system having a variable speed compressor |
| CN105953369A (en) * | 2016-05-18 | 2016-09-21 | 海信（广东）空调有限公司 | Control method and device for variable-frequency air conditioner |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
| CN107940844A (en) * | 2017-11-22 | 2018-04-20 | 珠海格力电器股份有限公司 | Judge method of the compressor air suction with liquid and the control method of coolant circulating system |
| CN108317073A (en) * | 2018-01-12 | 2018-07-24 | 特灵空调系统(中国)有限公司 | The control method and its control device of compressor, compressor |
-
2019
- 2019-04-25 CN CN201910336387.0A patent/CN110145905A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275700A (en) * | 2000-06-02 | 2000-12-06 | 海尔集团公司 | Improved refrigerating system for one driving multiple-unit air conditioner |
| US20100205989A1 (en) * | 2007-04-24 | 2010-08-19 | Hunter Manufacturing Co. | Environmental control unit for harsh conditions |
| CN101821565A (en) * | 2007-10-08 | 2010-09-01 | 艾默生环境优化技术有限公司 | System and method for calculating parameters for refrigeration system with variable speed compressor |
| CN104676941A (en) * | 2009-09-30 | 2015-06-03 | 赛默飞世尔科技(阿什维尔)有限责任公司 | Refrigeration system having a variable speed compressor |
| WO2013016403A1 (en) * | 2011-07-26 | 2013-01-31 | Carrier Corporation | Temperature control logic for refrigeration system |
| CN102563814A (en) * | 2012-02-08 | 2012-07-11 | 广东志高空调有限公司 | Cloud air conditioning system based on cloud computation technology |
| WO2015006925A1 (en) * | 2013-07-16 | 2015-01-22 | 广东美芝制冷设备有限公司 | Air-supplying enthalpy-adding air-conditioning system and control method therefor |
| CN105953369A (en) * | 2016-05-18 | 2016-09-21 | 海信（广东）空调有限公司 | Control method and device for variable-frequency air conditioner |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
| CN107940844A (en) * | 2017-11-22 | 2018-04-20 | 珠海格力电器股份有限公司 | Judge method of the compressor air suction with liquid and the control method of coolant circulating system |
| CN108317073A (en) * | 2018-01-12 | 2018-07-24 | 特灵空调系统(中国)有限公司 | The control method and its control device of compressor, compressor |
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Application publication date: 20190820 |