CN105091251B - The control method and control device of transducer air conditioning - Google Patents

The control method and control device of transducer air conditioning Download PDF

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Publication number
CN105091251B
CN105091251B CN201510599196.5A CN201510599196A CN105091251B CN 105091251 B CN105091251 B CN 105091251B CN 201510599196 A CN201510599196 A CN 201510599196A CN 105091251 B CN105091251 B CN 105091251B
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China
Prior art keywords
air conditioning
transducer air
frequency
expansion valve
compressor
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CN201510599196.5A
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Chinese (zh)
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CN105091251A (en
Inventor
谢李高
李金波
陈明瑜
卢海生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Priority to CN201510599196.5A priority Critical patent/CN105091251B/en
Publication of CN105091251A publication Critical patent/CN105091251A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air

Abstract

The invention provides a kind of control method of transducer air conditioning and control device, wherein, the transducer air conditioning includes compressor and the electric expansion valve for adjusting cold medium flux, the control method of the transducer air conditioning, including:Detect the running frequency of the compressor;Judge whether the running frequency of the compressor is less than or equal to preset frequency value;When the running frequency for judging the compressor is less than or equal to the preset frequency value, the aperture of the electric expansion valve is controlled to increase, to control the transducer air conditioning to enter low frequency stable operation pattern.Technical scheme can improve stability of the transducer air conditioning when low frequency is run, it is ensured that indoor temperature is smaller without fluctuation or fluctuation, improves the comfortableness of user.

Description

The control method and control device of transducer air conditioning
Technical field
The present invention relates to air conditioner technical field, in particular to the control method and one kind of a kind of transducer air conditioning The control device of transducer air conditioning.
Background technology
With the progressively popularization of transducer air conditioning, the accounting of middle and high end transducer air conditioning is also improved, middle and high end frequency conversion Air conditioner generally use electric expansion valve is throttled instead of capillary, and electric expansion valve type is excellent in energy-conservation and comfortableness In capillary type.In the electronic expansion valve controls technology of correlation, the frequency of flow of electronic expansion valve and compressor presses direct ratio Relationship change, so when compressor is with low-frequency operation, the cold medium flux of electric expansion valve type is less than the cold of capillary type Matchmaker's flow, so that electric expansion valve type is better than capillary type on overall performance.
But environment temperature is close to after design temperature indoors, the running frequency of transducer air conditioning can reduce, in single rotor When compressor low frequency is run, it is difficult to control the stable operation of compressor, and then indoor environment fluctuation can be caused larger, influence to use The comfortableness at family.
Therefore, how when transducer air conditioning is run with low frequency, it is ensured that the stable operation of compressor, lift frequency conversion The operational reliability of air conditioner turns into technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of control program of new transducer air conditioning, can improve Stability of the transducer air conditioning when low frequency is run, it is ensured that indoor temperature is smaller without fluctuation or fluctuation, improves relaxing for user Adaptive.
To achieve the above object, a kind of embodiment according to the first aspect of the invention, it is proposed that control of transducer air conditioning Method processed, the transducer air conditioning include compressor and the electric expansion valve for adjusting cold medium flux, the control method, bag Include:Detect the running frequency of the compressor;Judge whether the running frequency of the compressor is less than or equal to preset frequency value; When the running frequency for judging the compressor is less than or equal to the preset frequency value, the aperture of the electric expansion valve is controlled Increase, to control the transducer air conditioning to enter low frequency stable operation pattern.
The control method of transducer air conditioning according to an embodiment of the invention, by small in the running frequency for judging compressor When preset frequency value, the aperture of electric expansion valve is controlled to increase, enabling to reduce the cooling load of refrigeration system With the electric current of complete machine, and then the stable operation of transducer air conditioning can be realized, avoid transducer air conditioning when low frequency is run Because refrigeration system load is larger and controller phase current becomes big the problem of causing the FREQUENCY CONTROL shakiness of compressor, change is improved Stability of the frequency air conditioner when low frequency is run, it is ensured that indoor temperature is smaller without fluctuation or fluctuation, improves the comfortable of user Property.Meanwhile the control program of transducer air conditioning proposed by the present invention is without the cost of increase complete machine.Wherein, compressor is detected Running frequency can detect or be periodically detected in real time;Low frequency stable operation pattern can be understood as frequency conversion sky Device is adjusted to realize the pattern of stable operation when low frequency is run.
The control method of transducer air conditioning according to the abovementioned embodiments of the present invention, there can also be following technical characteristic:
According to one embodiment of present invention, the control method of the transducer air conditioning, in addition to:Detect outdoor environment temperature Degree;The step of controlling the aperture of the electric expansion valve to increase specifically includes:Based on the outdoor environment temperature, the electricity is controlled The aperture increase of sub- expansion valve.
The control method of transducer air conditioning according to an embodiment of the invention, during due to outdoor environment temperature difference, frequency conversion Cooling load when air conditioner is run with identical running frequency differs, therefore by detecting outdoor environment temperature, and base In the aperture increase of outdoor environment temperature control electric expansion valve, enabling swollen preferably to electronics with reference to outdoor environment temperature The aperture of swollen valve is controlled, and improves the accuracy to electronic expansion valve opening control.Wherein it is possible to by being disposed in the outdoor The temperature sensor detection outdoor environment temperature of the return air inlet of heat exchanger.
According to one embodiment of present invention, based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled The step of increase, specifically includes:Control the temperature value of the opening value and the outdoor environment temperature after the electric expansion valve increase Into positive correlation.
The control method of transducer air conditioning according to an embodiment of the invention, due to outdoor environment temperature it is higher when, frequency conversion The cooling load of air conditioner is larger, therefore in order to alleviate the cooling load of transducer air conditioning, can be with suitable control electric expansion valve Opening value it is larger, with lifted transducer air conditioning low frequency operation stability;It is on the contrary, relatively low in outdoor environment temperature When, the cooling load of transducer air conditioning is relatively small, therefore can be smaller with the opening value of suitable control electric expansion valve.
According to one embodiment of present invention, in addition to:In the transducer air conditioning with the low frequency stable operation pattern After running scheduled duration, if detecting, the running frequency of the compressor is more than the preset frequency value, controls the frequency conversion Air conditioner exits the low frequency stable operation pattern.
The control method of transducer air conditioning according to an embodiment of the invention, it is specifically, steady with low frequency in transducer air conditioning After determining operational mode operation scheduled duration, transducer air conditioning tends towards stability operation, and then can be by detecting the operation of compressor Frequency determines whether to exit low frequency stable operation pattern.Wherein, scheduled duration can be 3 minutes.
According to one embodiment of present invention, the preset frequency value is in 10Hz between 15Hz.
Embodiment according to a second aspect of the present invention, it is also proposed that a kind of control device of transducer air conditioning, the frequency conversion Air conditioner includes compressor and the electric expansion valve for adjusting cold medium flux, the control device, including:Frequency detecting list Member, for detecting the running frequency of the compressor;Judging unit, for judging whether the running frequency of the compressor is less than Or equal to preset frequency value;Control unit, the running frequency for judging the compressor in the judging unit are less than or waited When the preset frequency value, the aperture of the electric expansion valve is controlled to increase, to control the transducer air conditioning to enter low frequency Stable operation pattern.
The control device of transducer air conditioning according to an embodiment of the invention, by small in the running frequency for judging compressor When preset frequency value, the aperture of electric expansion valve is controlled to increase, enabling to reduce the cooling load of refrigeration system With the electric current of complete machine, and then the stable operation of transducer air conditioning can be realized, avoid transducer air conditioning when low frequency is run Because refrigeration system load is larger and controller phase current becomes big the problem of causing the FREQUENCY CONTROL shakiness of compressor, change is improved Stability of the frequency air conditioner when low frequency is run, it is ensured that indoor temperature is smaller without fluctuation or fluctuation, improves the comfortable of user Property.Meanwhile the control program of transducer air conditioning proposed by the present invention is without the cost of increase complete machine.Wherein, compressor is detected Running frequency can detect or be periodically detected in real time;Low frequency stable operation pattern can be understood as frequency conversion sky Device is adjusted to realize the pattern of stable operation when low frequency is run.
The control device of transducer air conditioning according to the abovementioned embodiments of the present invention, there can also be following technical characteristic:
According to one embodiment of present invention, in addition to:Temperature detecting unit, for detecting outdoor environment temperature;It is described Control unit is specifically used for:Based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled to increase.
The control device of transducer air conditioning according to an embodiment of the invention, during due to outdoor environment temperature difference, frequency conversion Cooling load when air conditioner is run with identical running frequency differs, therefore by detecting outdoor environment temperature, and base In the aperture increase of outdoor environment temperature control electric expansion valve, enabling swollen preferably to electronics with reference to outdoor environment temperature The aperture of swollen valve is controlled, and improves the accuracy to electronic expansion valve opening control.Wherein it is possible to by being disposed in the outdoor The temperature sensor detection outdoor environment temperature of the return air inlet of heat exchanger.
According to one embodiment of present invention, described control unit is specifically additionally operable to:The electric expansion valve is controlled to increase The temperature value of rear opening value and the outdoor environment temperature is into positive correlation.
The control device of transducer air conditioning according to an embodiment of the invention, due to outdoor environment temperature it is higher when, frequency conversion The cooling load of air conditioner is larger, therefore in order to alleviate the cooling load of transducer air conditioning, can be with suitable control electric expansion valve Opening value it is larger, with lifted transducer air conditioning low frequency operation stability;It is on the contrary, relatively low in outdoor environment temperature When, the cooling load of transducer air conditioning is relatively small, therefore can be smaller with the opening value of suitable control electric expansion valve.
According to one embodiment of present invention, described control unit is additionally operable to:In the transducer air conditioning with the low frequency After stable operation mode operation scheduled duration, if the frequency detecting unit detects that the running frequency of the compressor is more than institute Preset frequency value is stated, then controls the transducer air conditioning to exit the low frequency stable operation pattern.
The control device of transducer air conditioning according to an embodiment of the invention is specifically, steady with low frequency in transducer air conditioning After determining operational mode operation scheduled duration, transducer air conditioning tends towards stability operation, and then can be by detecting the operation of compressor Frequency determines whether to exit low frequency stable operation pattern.Wherein, scheduled duration can be 3 minutes.
According to one embodiment of present invention, the preset frequency value is in 10Hz between 15Hz.
Embodiment according to a third aspect of the present invention, it is also proposed that a kind of transducer air conditioning, including:Any one is real as described above Apply the control device of the transducer air conditioning described in example.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Substantially and it is readily appreciated that, wherein:
Fig. 1 shows the schematic flow diagram of the control method of transducer air conditioning according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of the control device of transducer air conditioning according to an embodiment of the invention;
Fig. 3 shows the schematic flow diagram of the control method of transducer air conditioning according to another embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the control method of transducer air conditioning according to an embodiment of the invention.
Transducer air conditioning of the present invention includes compressor and the electric expansion valve for adjusting cold medium flux.Such as Fig. 1 It is shown, the control method of transducer air conditioning according to an embodiment of the invention, including:Step 102, the compressor is detected Running frequency;Step 104, judge whether the running frequency of the compressor is less than or equal to preset frequency value;Step 106, When the running frequency for judging the compressor is less than or equal to the preset frequency value, the aperture of the electric expansion valve is controlled Increase, to control the transducer air conditioning to enter low frequency stable operation pattern.
During by being less than or equal to preset frequency value in the running frequency for judging compressor, the aperture of electric expansion valve is controlled Increase, enabling reduce the cooling load of refrigeration system and the electric current of complete machine, and then the stabilization of transducer air conditioning can be realized Operation, transducer air conditioning is avoided when low frequency is run because refrigeration system load is larger and the change of controller phase current causes greatly The problem of FREQUENCY CONTROL shakiness of compressor, improve stability of the transducer air conditioning when low frequency is run, it is ensured that Indoor Temperature Degree is smaller without fluctuation or fluctuation, improves the comfortableness of user.Meanwhile the control program of transducer air conditioning proposed by the present invention The cost of complete machine need not be increased.Wherein, the running frequency for detecting compressor can be real-time detection or periodically examine Survey;Low frequency stable operation pattern, which can be understood as transducer air conditioning, can realize the pattern of stable operation when low frequency is run.
The control method of transducer air conditioning according to the abovementioned embodiments of the present invention, there can also be following technical characteristic:
According to one embodiment of present invention, the control method of the transducer air conditioning, in addition to:Detect outdoor environment temperature Degree;The step of controlling the aperture of the electric expansion valve to increase specifically includes:Based on the outdoor environment temperature, the electricity is controlled The aperture increase of sub- expansion valve.
During due to outdoor environment temperature difference, cooling load when transducer air conditioning is run with identical running frequency is not phase With, therefore by detecting outdoor environment temperature, and based on the aperture increase of outdoor environment temperature control electric expansion valve so that Preferably the aperture of electric expansion valve can be controlled with reference to outdoor environment temperature, improved to electronic expansion valve opening control The accuracy of system.Wherein it is possible to the temperature sensor detection outdoor environment temperature of the return air inlet by being disposed in the outdoor heat exchanger.
According to one embodiment of present invention, based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled The step of increase, specifically includes:Control the temperature value of the opening value and the outdoor environment temperature after the electric expansion valve increase Into positive correlation.
Due to outdoor environment temperature it is higher when, the cooling load of transducer air conditioning is larger, therefore in order to alleviate convertible frequency air-conditioner The cooling load of device, can be larger with the opening value of suitable control electric expansion valve, to lift the operation of transducer air conditioning low frequency Stability;On the contrary, when outdoor environment temperature is relatively low, the cooling load of transducer air conditioning is relatively small, therefore can fit When the opening value of control electric expansion valve is smaller.
Specifically, such as outdoor environment temperature value T1 > T2 > T3, then when outdoor environment temperature value is T1, control electronics is swollen Swollen valve increases to aperture α 1, and when outdoor environment temperature value is T2, control electric expansion valve increases to aperture α 2, in outdoor environment When temperature value is T3, control electric expansion valve increases to aperture α 3, wherein, α 1>α2>α3.
According to one embodiment of present invention, in addition to:In the transducer air conditioning with the low frequency stable operation pattern After running scheduled duration, if detecting, the running frequency of the compressor is more than the preset frequency value, controls the frequency conversion Air conditioner exits the low frequency stable operation pattern.
Specifically, after transducer air conditioning is with low frequency stable operation mode operation scheduled duration, transducer air conditioning tends to be steady Fixed operation, and then can determine whether to exit low frequency stable operation pattern by detecting the running frequency of compressor.Wherein, make a reservation for Duration can be 3 minutes.
According to one embodiment of present invention, the preset frequency value is in 10Hz between 15Hz.
Fig. 2 shows the schematic block diagram of the control device of transducer air conditioning according to an embodiment of the invention.
Transducer air conditioning of the present invention includes compressor and the electric expansion valve for adjusting cold medium flux.Such as Fig. 2 It is shown, the control device 200 of transducer air conditioning according to an embodiment of the invention, including:Frequency detecting unit 202, for examining Survey the running frequency of the compressor;Judging unit 204, for judging whether the running frequency of the compressor is less than or equal to Preset frequency value;Control unit 206, for judging that the running frequency of the compressor is less than or waited in the judging unit 204 When the preset frequency value, the aperture of the electric expansion valve is controlled to increase, to control the transducer air conditioning to enter low frequency Stable operation pattern.
During by being less than or equal to preset frequency value in the running frequency for judging compressor, the aperture of electric expansion valve is controlled Increase, enabling reduce the cooling load of refrigeration system and the electric current of complete machine, and then the stabilization of transducer air conditioning can be realized Operation, transducer air conditioning is avoided when low frequency is run because refrigeration system load is larger and the change of controller phase current causes greatly The problem of FREQUENCY CONTROL shakiness of compressor, improve stability of the transducer air conditioning when low frequency is run, it is ensured that Indoor Temperature Degree is smaller without fluctuation or fluctuation, improves the comfortableness of user.Meanwhile the control program of transducer air conditioning proposed by the present invention The cost of complete machine need not be increased.Wherein, the running frequency for detecting compressor can be real-time detection or periodically examine Survey;Low frequency stable operation pattern, which can be understood as transducer air conditioning, can realize the pattern of stable operation when low frequency is run.
The control device 200 of transducer air conditioning according to the abovementioned embodiments of the present invention, there can also be following technology special Sign:
According to one embodiment of present invention, in addition to:Temperature detecting unit 208, for detecting outdoor environment temperature;Institute Control unit 206 is stated to be specifically used for:Based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled to increase.
During due to outdoor environment temperature difference, cooling load when transducer air conditioning is run with identical running frequency is not phase With, therefore by detecting outdoor environment temperature, and based on the aperture increase of outdoor environment temperature control electric expansion valve so that Preferably the aperture of electric expansion valve can be controlled with reference to outdoor environment temperature, improved to electronic expansion valve opening control The accuracy of system.Wherein it is possible to the temperature sensor detection outdoor environment temperature of the return air inlet by being disposed in the outdoor heat exchanger.
According to one embodiment of present invention, described control unit 206 is specifically additionally operable to:The electric expansion valve is controlled to increase The temperature value of opening value after big and the outdoor environment temperature is into positive correlation.
Due to outdoor environment temperature it is higher when, the cooling load of transducer air conditioning is larger, therefore in order to alleviate convertible frequency air-conditioner The cooling load of device, can be larger with the opening value of suitable control electric expansion valve, to lift the operation of transducer air conditioning low frequency Stability;On the contrary, when outdoor environment temperature is relatively low, the cooling load of transducer air conditioning is relatively small, therefore can fit When the opening value of control electric expansion valve is smaller.
Specifically, such as outdoor environment temperature value T1 > T2 > T3, then when outdoor environment temperature value is T1, control electronics is swollen Swollen valve increases to aperture α 1, and when outdoor environment temperature value is T2, control electric expansion valve increases to aperture α 2, in outdoor environment When temperature value is T3, control electric expansion valve increases to aperture α 3, wherein, α 1>α2>α3.
According to one embodiment of present invention, described control unit 206 is additionally operable to:In the transducer air conditioning with described low After frequency stable operation mode operation scheduled duration, if the frequency detecting unit 202 detects the running frequency of the compressor More than the preset frequency value, then the transducer air conditioning is controlled to exit the low frequency stable operation pattern.
Specifically, after transducer air conditioning is with low frequency stable operation mode operation scheduled duration, transducer air conditioning tends to be steady Fixed operation, and then can determine whether to exit low frequency stable operation pattern by detecting the running frequency of compressor.Wherein, make a reservation for Duration can be 3 minutes.
According to one embodiment of present invention, the preset frequency value is in 10Hz between 15Hz.
The invention also provides a kind of transducer air conditioning (not shown), including:Transducer air conditioning as shown in Figure 2 Control device 200.
Fig. 3 shows the schematic flow diagram of the control method of transducer air conditioning according to another embodiment of the invention.
As shown in figure 3, the control method of transducer air conditioning according to another embodiment of the invention, including:
Step 302, transducer air conditioning is started shooting.
Step 304, the running frequency f of compressor is detected in real time.
Step 306, judge whether the running frequency f of compressor is less than or equal to predetermined value A, if so, then performing step 308;Otherwise, step 312 is performed.
Step 308, into low frequency stable operation pattern, the i.e. aperture based on environment temperature control electric expansion valve.
Step 310, with return to step 304 after low frequency stable operation pattern working time t1.
Step 312, into normal operation mode.
Step 314, return to step 304 after elapsed time t1.
Technical scheme is described in detail above in association with accompanying drawing, it is contemplated that environment temperature is close indoors at present sets After constant temperature degree, the running frequency of transducer air conditioning can reduce, when single-rotor compressor low frequency is run, it is difficult to control compressor Stable operation, and then can cause indoor environment fluctuation it is larger, influence the comfortableness of user.Therefore, the present invention proposes one kind The control program of new transducer air conditioning, stability of the transducer air conditioning when low frequency is run can be improved, it is ensured that Indoor Temperature Degree is smaller without fluctuation or fluctuation, improves the comfortableness of user.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (8)

1. a kind of control method of transducer air conditioning, it is characterised in that the transducer air conditioning includes compressor and for adjusting The electric expansion valve of cold medium flux, the control method, including:
Step S1:The transducer air conditioning enters normal operation mode;
Step S2:Elapsed time t1;
Step S3:The running frequency of the compressor is detected in real time;
Step S4:Judge whether the running frequency of the compressor is less than or equal to preset frequency value, if so, then performing step S5, otherwise, then return to the step S1;
The step S5:The aperture of the electric expansion valve is controlled to increase, to control the transducer air conditioning stable into low frequency Operational mode;
Step S6:The transducer air conditioning returns to the step S3 afterwards with the low frequency stable operation pattern working time t1.
2. the control method of transducer air conditioning according to claim 1, it is characterised in that also include:Detect outdoor environment Temperature;
The step of controlling the aperture of the electric expansion valve to increase specifically includes:
Based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled to increase.
3. the control method of transducer air conditioning according to claim 2, it is characterised in that based on the outdoor environment temperature The step of spending, controlling the aperture of the electric expansion valve to increase specifically includes:
The temperature value of the opening value after the electric expansion valve increase and the outdoor environment temperature is controlled into positive correlation.
4. the control method of transducer air conditioning according to any one of claim 1 to 3, it is characterised in that described predetermined Frequency values are in 10Hz between 15Hz.
5. a kind of control device of transducer air conditioning, it is characterised in that the transducer air conditioning includes compressor and for adjusting The electric expansion valve of cold medium flux, the control device, including:
Frequency detecting unit, for after the transducer air conditioning enters normal operation mode and elapsed time t1, detecting in real time The running frequency of the compressor;
Judging unit, for judging whether the running frequency of the compressor is less than or equal to preset frequency value;
Control unit, for judging that the running frequency of the compressor is less than or equal to the preset frequency in the judging unit During value, the aperture of the electric expansion valve is controlled to increase, to control the transducer air conditioning to enter low frequency stable operation pattern;
The frequency detecting unit be additionally operable to the transducer air conditioning with low frequency stable operation pattern working time t1 it Afterwards, the running frequency of the compressor is detected in real time;
Described control unit is additionally operable to judge that the running frequency of the compressor is more than the preset frequency in the judging unit During value, the transducer air conditioning is controlled to enter normal operation mode.
6. the control device of transducer air conditioning according to claim 5, it is characterised in that also include:Temperature detecting unit, For detecting outdoor environment temperature;
Described control unit is specifically used for:Based on the outdoor environment temperature, the aperture of the electric expansion valve is controlled to increase.
7. the control device of transducer air conditioning according to claim 6, it is characterised in that described control unit is specifically also used In:
The temperature value of the opening value after the electric expansion valve increase and the outdoor environment temperature is controlled into positive correlation.
8. the control device of the transducer air conditioning according to any one of claim 5 to 7, it is characterised in that described predetermined Frequency values are in 10Hz between 15Hz.
CN201510599196.5A 2015-09-18 2015-09-18 The control method and control device of transducer air conditioning Active CN105091251B (en)

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CN107449110B (en) * 2017-07-26 2020-07-28 美的集团武汉制冷设备有限公司 Air conditioning system, and control device and method of air conditioning system
CN108151250B (en) * 2017-12-26 2020-09-25 海信(山东)空调有限公司 Variable frequency air conditioner control method and device
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CN111397142B (en) * 2020-04-16 2022-02-22 宁波奥克斯电气股份有限公司 Control method and device for electronic expansion valve of air conditioner, air conditioner and storage medium
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