CN104596045A - Temperature control method for frequency converter of air conditioning system - Google Patents

Temperature control method for frequency converter of air conditioning system Download PDF

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Publication number
CN104596045A
CN104596045A CN201510080316.0A CN201510080316A CN104596045A CN 104596045 A CN104596045 A CN 104596045A CN 201510080316 A CN201510080316 A CN 201510080316A CN 104596045 A CN104596045 A CN 104596045A
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China
Prior art keywords
temperature
frequency
compressor
change
operating
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Granted
Application number
CN201510080316.0A
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Chinese (zh)
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CN104596045B (en
Inventor
宋鹏
张龙爱
王传华
谷月明
李桂强
曾凡卓
姚鸿海
王晓红
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201510080316.0A priority Critical patent/CN104596045B/en
Publication of CN104596045A publication Critical patent/CN104596045A/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
    • F24F11/62Control 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
    • 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
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • 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
    • 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

Abstract

The invention provides a temperature control method for a frequency converter of an air conditioning system. The temperature control method comprises the following steps: detecting the temperature of the frequency converter, and acquiring the temperature data of the frequency converter; adjusting the working frequency of a compressor according to the temperature data, and enabling the temperature of the frequency converter to be within the preset range by adjusting the working frequency of the compressor. The temperature control method provided by the invention can solve the problem that in the prior art the module temperature of the air conditioning system cannot be controlled.

Description

The temperature-controlled process of air-conditioning system frequency conversion device
Technical field
The present invention relates to air-conditioner technical field, in particular to a kind of temperature-controlled process of air-conditioning system frequency conversion device.
Background technology
At present, in air-conditioning system, frequency converter operationally, if the module temperature of frequency converter is too high, can affect the normal use of overall unit; If the module temperature of frequency converter is too low, then can produce condensation in frequency converter.
Owing to lacking the method for corresponding control module temperature in prior art, make the operating temperature of uncontrollable module, thus the normal work of air-conditioning system cannot be ensured.
Summary of the invention
Main purpose of the present invention is the temperature-controlled process providing a kind of air-conditioning system frequency conversion device, to solve the problem of the uncontrollable module temperature of air-conditioning system of the prior art.
To achieve these goals, according to the temperature-controlled process providing a kind of air-conditioning system frequency conversion device of the present invention, temperature-controlled process comprises: detect the temperature of frequency converter, obtains the temperature data of frequency converter; According to the operating frequency of temperature data adjustment compressor, by adjusting the operating frequency of compressor, be in preset range to make the temperature of frequency converter.
Further, the operating frequency according to temperature data adjustment compressor specifically comprises: according to temperature data, obtains the operating temperature after the change of the operating temperature before the change of frequency converter and frequency converter; According to the operating temperature after the operating temperature before change and change, obtain the rate temperature change of frequency converter; According to the operating frequency of rate temperature change adjustment compressor.
Further, before according to the operating frequency of temperature data adjustment compressor, also comprise: obtain the temperature range residing for operating temperature before the change of frequency converter, wherein, temperature range the operating temperature range of frequency converter is divided in advance in multiple temperature ranges of obtaining; Temperature range residing for the operating temperature before the change of frequency converter and temperature data, select corresponding adjustable strategies to adjust the operating frequency of compressor.
Further, according to temperature range and temperature data, the operating frequency selecting corresponding adjustable strategies to adjust compressor specifically comprises: corresponding to multiple temperature range, and the operating frequency of adjustment compressor comprises multiple adjustable strategies, the corresponding adjustable strategies of each temperature range.
Further, corresponding to multiple temperature range, the operating frequency of adjustment compressor comprises multiple adjustable strategies, in the step of the corresponding adjustable strategies of each temperature range, temperature range comprises the first temperature range, the second temperature range, the 3rd temperature range and the 4th temperature range that temperature is successively decreased successively; Adjustable strategies comprises the first adjustable strategies, the second adjustable strategies, the 3rd adjustable strategies and the 4th adjustable strategies, corresponding first temperature range of first adjustable strategies, corresponding second temperature range of second adjustable strategies, corresponding 3rd temperature range of 3rd adjustable strategies, corresponding 4th temperature range of the 4th adjustable strategies.
Further, according to temperature range and temperature data, corresponding adjustment mode is selected to adjust in the step of the operating frequency of compressor, when operating temperature before the change of frequency converter is positioned at the first temperature range, if rate temperature change is more than or equal to 0, then compressor carries out raising frequency operation, if rate temperature change is less than 0, then compressor keeps ongoing frequency; When operating temperature before the change of frequency converter is positioned at the second temperature range, if rate temperature change is more than or equal to 0, then compressor carries out raising frequency operation, if rate temperature change is less than 0, then compressor keeps ongoing frequency; When operating temperature before the change of frequency converter is positioned at the 3rd temperature range, if rate temperature change is greater than 0, then compressor carries out raising frequency operation, if rate temperature change equals 0, then compressor keeps ongoing frequency, if rate temperature change is less than 0, then compressor carries out frequency reducing operation; When operating temperature before the change of frequency converter is positioned at the 4th temperature range, if rate temperature change is greater than 0, then compressor keeps ongoing frequency, if rate temperature change is less than or equal to 0, then compressor carries out frequency reducing operation.
Further, when the operating temperature before the change of frequency converter is positioned at the second temperature range, if rate temperature change is greater than 1, then compressor raising frequency b 1hz, if rate temperature change is greater than 0 and be less than or equal to 1, then compressor raising frequency b 2hz, if rate temperature change equals 0, then compressor raising frequency b 3hz.
Further, when the operating temperature before the change of frequency converter is positioned at the 3rd temperature range, if rate temperature change is greater than 1, then compressor raising frequency c 1hz, if rate temperature change is greater than 0 and be less than or equal to 1, then compressor raising frequency c 2hz, if rate temperature change equals 0, then compressor keeps ongoing frequency, if rate temperature change is more than or equal to-1 and be less than 0, then compressor frequency reducing c 3hz, if rate temperature change is less than-1, then compressor frequency reducing c 4hz.
Further, after according to the operating frequency step of temperature data adjustment compressor, temperature-controlled process also comprises: be communicated with according to the temperature of frequency converter or disconnect the controlling brancher in parallel with frequency converter.
Further, be communicated with according to the temperature of frequency converter or disconnect the controlling brancher in parallel with frequency converter and specifically comprise: according to the operating temperature of frequency converter, the first preset temperature value and the second preset temperature value are set; When the temperature of frequency converter is more than or equal to the first preset temperature value, branch road disconnects; When the temperature of frequency converter is less than or equal to the second preset temperature value, branch road is communicated with; Wherein, the first preset temperature value is less than the second preset temperature value.
Apply technical scheme of the present invention, by detecting the temperature of frequency converter, and the operating frequency of compressor is adjusted according to this temperature data, namely the operation conditions of frequency converter is directly affected by the operating frequency of compressor, when the operating frequency of compressor is higher, the corresponding increase of live load of frequency converter, so can cause the corresponding increase of the module temperature in frequency converter, when the operating frequency of compressor is lower, the live load of frequency converter is little, makes the module temperature in frequency converter corresponding lower.By above-mentioned adjustable strategies, frequency converter inner module temperature can be adjusted efficiently and accurately.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the flow chart of the temperature-controlled process of the air-conditioning system frequency conversion device provided according to the embodiment of the present invention;
Fig. 2 shows the flow chart of the temperature-controlled process of the air-conditioning system frequency conversion device provided according to further embodiment of this invention;
Fig. 3 shows the flow chart of the temperature-controlled process of the air-conditioning system frequency conversion device provided according to further embodiment of this invention;
Fig. 4 shows the structural representation of the air-conditioning system frequency conversion device provided according to the embodiment of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, compressor; 20, frequency converter; 30, branch road.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figures 1 to 4, the invention provides a kind of temperature-controlled process of air-conditioning system frequency conversion device, this temperature-controlled process comprises:
S101, detects the temperature of frequency converter 20, obtains the temperature data of frequency converter 20,
S103, according to the operating frequency of temperature data adjustment compressor 10, by adjusting the operating frequency of compressor, is in preset range to make the temperature of frequency converter.
By detecting the temperature of frequency converter 20, and the operating frequency of compressor 10 is adjusted according to this temperature data, namely directly affect the operation conditions of frequency converter 20 by the operating frequency of compressor 10, the caloric value of the operating frequency of compressor 10 and frequency converter 20 is matched.When the operating frequency of compressor 10 is higher, the corresponding increase of live load of frequency converter 20, so can cause the corresponding increase of the module temperature in frequency converter 20, when the operating frequency of compressor 10 is lower, the live load of frequency converter 20 is little, makes the module temperature in frequency converter 20 corresponding lower.By above-mentioned adjustable strategies, frequency converter 20 inner module temperature can be adjusted efficiently and accurately.
As shown in Figure 2, wherein, specifically comprise according to the operating frequency of temperature data adjustment compressor 10:
S201, according to temperature data, obtains the operating temperature after the change of the operating temperature before the change of frequency converter 20 and frequency converter 20;
S202, according to the operating temperature after the operating temperature before change and change, calculates the rate temperature change of frequency converter 20 in unit interval t;
S203, according to the operating frequency of rate temperature change adjustment compressor 10.
As shown in Figure 3, particularly, before according to the operating frequency of temperature data adjustment compressor 10, also comprise:
S301, obtains the temperature range residing for operating temperature before the change of frequency converter, and wherein, temperature range the operating temperature range of frequency converter is divided in advance in multiple temperature ranges of obtaining;
The operating temperature range of frequency converter 20 is divided in advance the multiple temperature ranges obtained, according to the operating temperature before the change of the frequency converter 20 obtained, the temperature range at corresponding place is found in the multiple temperature ranges divided in advance, then according to the temperature data of residing temperature range and acquisition, corresponding adjustable strategies is selected to adjust the operating frequency of compressor 10.Wherein, the operating frequency of adjustment compressor 10 comprises multiple adjustable strategies, the corresponding adjustable strategies of each temperature range.By dividing multiple temperature range, corresponding different temperatures interval adopts different adjustable strategies, can ensure the module temperature steady change in frequency converter 20, avoids the normal work affecting frequency converter 20 owing to floating too greatly.
S302, the temperature range residing for the operating temperature before the change of frequency converter and temperature data, select corresponding adjustable strategies to adjust the operating frequency of compressor.
Particularly, according to reality adjustment demand and adjustment accuracy, temperature range comprises the first temperature range, the second temperature range, the 3rd temperature range and the 4th temperature range that temperature is successively decreased successively.Adjustable strategies comprises the first adjustable strategies, the second adjustable strategies, the 3rd adjustable strategies and the 4th adjustable strategies.Wherein, corresponding first temperature range of the first adjustable strategies, corresponding second temperature range of the second adjustable strategies, corresponding 3rd temperature range of the 3rd adjustable strategies, corresponding 4th temperature range of the 4th adjustable strategies.
In embodiment provided by the invention, according to temperature range and the temperature data at concrete place, corresponding adjustment mode is selected to adjust the operating frequency of compressor 10, particularly, when operating temperature before the change of frequency converter 20 is positioned at the first temperature range, if rate temperature change is more than or equal to 0, then compressor 10 carries out raising frequency operation, if rate temperature change is less than 0, then compressor 10 keeps ongoing frequency; When operating temperature before the change of frequency converter 20 is positioned at the second temperature range, if rate temperature change is more than or equal to 0, then compressor 10 carries out raising frequency operation, if rate temperature change is less than 0, then compressor 10 keeps ongoing frequency; When operating temperature before the change of frequency converter 20 is positioned at the 3rd temperature range, if rate temperature change is greater than 0, then compressor 10 carries out raising frequency operation, if rate temperature change equals 0, then compressor 10 keeps ongoing frequency, if rate temperature change is less than 0, then compressor 10 carries out frequency reducing operation; When operating temperature before the change of frequency converter 20 is positioned at the 4th temperature range, if rate temperature change is greater than 0, then compressor 10 keeps ongoing frequency, if rate temperature change is less than or equal to 0, then compressor 10 carries out frequency reducing operation.
Wherein, when the operating temperature before the change of frequency converter 20 is positioned at the second temperature range, if rate temperature change is greater than 1, then compressor 10 raising frequency b 1hz, if rate temperature change is greater than 0 and be less than or equal to 1, then compressor 10 raising frequency b 2hz, if rate temperature change equals 0, then compressor 10 raising frequency b 3hz.Wherein, b 1, b 2, b 3numerical value reduce successively.Similarly, when the operating temperature before the change of frequency converter 20 is positioned at the 3rd temperature range, if rate temperature change is greater than 1, then compressor 10 raising frequency c 1hz, if rate temperature change is greater than 0 and be less than or equal to 1, then compressor 10 raising frequency c 2hz, if rate temperature change equals 0, then compressor 10 keeps ongoing frequency, if rate temperature change is more than or equal to-1 and be less than 0, then compressor 10 frequency reducing c 3hz, if rate temperature change is less than-1, then compressor 10 frequency reducing c 4hz.Wherein, c 1numerical value be greater than c 2numerical value, c 3numerical value be less than c 4numerical value.So can the operating temperature of frequency converter 20 depart from design temperature larger time, accomplish quick adjustment, when its depart from design temperature less time, accomplish meticulous adjustment.
In the present embodiment, after according to the operating frequency step of temperature data adjustment compressor 10, this temperature-controlled process also comprises: be communicated with according to the temperature of frequency converter 20 or disconnect the controlling brancher 30 in parallel with frequency converter 20.Particularly, first according to the operating temperature of frequency converter 20, the first preset temperature value and the second preset temperature value are set, when the temperature of frequency converter 20 is more than or equal to the first preset temperature value, branch road 30 disconnects, and refrigerant is flowed in frequency converter 20, is lowered the temperature by refrigerant to frequency converter 20.When the temperature of frequency converter 20 is less than or equal to the second preset temperature value, branch road 30 is communicated with, and refrigerant is gone to branch road 30, makes refrigerant without frequency converter 20, to prevent the module temperature in frequency converter 20 too low.Wherein, the first preset temperature value is less than the second preset temperature value.Can the temperature of auxiliary adjustment frequency converter 20 inner module by the method, ensure the reliability of total system further.
It should be noted that, said method is the process of adjustment in real time, and its adjustment cycle is determined according to the numerical value of t, and system so can be made to reach dynamic equilibrium.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a temperature-controlled process for air-conditioning system frequency conversion device, is characterized in that, described temperature-controlled process comprises:
The temperature of frequency converter is detected, obtains the temperature data of described frequency converter;
According to the operating frequency of described temperature data adjustment compressor, by adjusting the operating frequency of described compressor, be in preset range to make the temperature of described frequency converter.
2. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 1, is characterized in that, the operating frequency according to described temperature data adjustment compressor specifically comprises:
According to described temperature data, obtain the operating temperature after the change of the operating temperature before the change of described frequency converter and described frequency converter;
According to the operating temperature after the operating temperature before described change and described change, obtain the rate temperature change of described frequency converter;
The operating frequency of described compressor is adjusted according to described rate temperature change.
3. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 2, is characterized in that, before according to the operating frequency of described temperature data adjustment compressor, also comprises:
Obtain the temperature range residing for the operating temperature before the change of described frequency converter, wherein, described temperature range the operating temperature range of described frequency converter is divided in advance in multiple temperature ranges of obtaining;
Described temperature range residing for the operating temperature before the change of described frequency converter and described temperature data, select corresponding adjustable strategies to adjust the operating frequency of described compressor.
4. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 3, is characterized in that, according to described temperature range and described temperature data, the operating frequency selecting corresponding adjustable strategies to adjust described compressor specifically comprises:
Corresponding to described multiple temperature range, the operating frequency adjusting described compressor comprises multiple adjustable strategies, the corresponding described adjustable strategies of each described temperature range.
5. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 4, it is characterized in that, corresponding to described multiple temperature range, the operating frequency adjusting described compressor comprises multiple adjustable strategies, in the step of the corresponding described adjustable strategies of each described temperature range
Described temperature range comprises the first temperature range, the second temperature range, the 3rd temperature range and the 4th temperature range that temperature is successively decreased successively;
Described adjustable strategies comprises the first adjustable strategies, the second adjustable strategies, the 3rd adjustable strategies and the 4th adjustable strategies, corresponding described first temperature range of described first adjustable strategies, corresponding described second temperature range of described second adjustable strategies, corresponding described 3rd temperature range of described 3rd adjustable strategies, corresponding described 4th temperature range of described 4th adjustable strategies.
6. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 5, is characterized in that, according to described temperature range and described temperature data, selects corresponding adjustment mode to adjust in the step of the operating frequency of described compressor,
When operating temperature before the change of described frequency converter is positioned at described first temperature range, if described rate temperature change is more than or equal to 0, then described compressor carries out raising frequency operation, if described rate temperature change is less than 0, then described compressor keeps ongoing frequency;
When operating temperature before the change of described frequency converter is positioned at described second temperature range, if described rate temperature change is more than or equal to 0, then described compressor carries out raising frequency operation, if described rate temperature change is less than 0, then described compressor keeps ongoing frequency;
When operating temperature before the change of described frequency converter is positioned at described 3rd temperature range, if described rate temperature change is greater than 0, then described compressor carries out raising frequency operation, if described rate temperature change equals 0, then described compressor keeps ongoing frequency, if described rate temperature change is less than 0, then described compressor carries out frequency reducing operation;
When operating temperature before the change of described frequency converter is positioned at described 4th temperature range, if described rate temperature change is greater than 0, then described compressor keeps ongoing frequency, if described rate temperature change is less than or equal to 0, then described compressor carries out frequency reducing operation.
7. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 6, is characterized in that,
When operating temperature before the change of described frequency converter is positioned at described second temperature range, if described rate temperature change is greater than 1, then described compressor raising frequency b 1hz, if described rate temperature change is greater than 0 and is less than or equal to 1, then described compressor raising frequency b 2hz, if described rate temperature change equals 0, then described compressor raising frequency b 3hz.
8. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 6, is characterized in that,
When operating temperature before the change of described frequency converter is positioned at described 3rd temperature range, if described rate temperature change is greater than 1, then described compressor raising frequency c 1hz, if described rate temperature change is greater than 0 and is less than or equal to 1, then described compressor raising frequency c 2hz, if described rate temperature change equals 0, then described compressor keeps ongoing frequency, if described rate temperature change is more than or equal to-1 and is less than 0, then described compressor frequency reducing c3Hz, if described rate temperature change is less than-1, then described compressor frequency reducing c 4hz.
9. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 1, is characterized in that, after according to the operating frequency step of described temperature data adjustment compressor, described temperature-controlled process also comprises:
Be communicated with according to the temperature of described frequency converter or disconnect the controlling brancher in parallel with described frequency converter.
10. the temperature-controlled process of air-conditioning system frequency conversion device according to claim 9, is characterized in that, is communicated with or disconnects the controlling brancher in parallel with described frequency converter specifically to comprise according to the temperature of described frequency converter:
According to the operating temperature of described frequency converter, the first preset temperature value and the second preset temperature value are set;
When the temperature of described frequency converter is more than or equal to described first preset temperature value, described branch road disconnects;
When the temperature of described frequency converter is less than or equal to described second preset temperature value, described branch road is communicated with;
Wherein, described first preset temperature value is less than described second preset temperature value.
CN201510080316.0A 2015-02-12 2015-02-12 The temprature control method of air-conditioning system frequency conversion device Active CN104596045B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949269A (en) * 2015-06-08 2015-09-30 广东美的暖通设备有限公司 System control method and device for overhigh module temperature
CN104949267A (en) * 2015-06-08 2015-09-30 广东美的暖通设备有限公司 Method and device for judging failure of frequency conversion module temperature detecting device
CN105299825A (en) * 2015-06-30 2016-02-03 广东美的暖通设备有限公司 Frequency-limiting protection method for air conditioner
CN105546760A (en) * 2016-01-12 2016-05-04 芜湖美智空调设备有限公司 Air conditioner, and control method and device for compressor of air conditioner
CN105546754A (en) * 2016-01-04 2016-05-04 广东美的暖通设备有限公司 Temperature controlling method and device for converter and air conditioning
CN108518827A (en) * 2018-02-28 2018-09-11 珠海格力电器股份有限公司 The control method and air-conditioning system of air-conditioning system
CN110425711A (en) * 2019-09-05 2019-11-08 宁波奥克斯电气股份有限公司 A kind of temprature control method of intelligent power module, device and air conditioner
CN111397077A (en) * 2020-02-24 2020-07-10 珠海格力电器股份有限公司 Temperature control method and device, storage medium and air conditioner

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CN101821509A (en) * 2007-10-08 2010-09-01 艾默生环境优化技术有限公司 Compressor protection system and method
CN203130465U (en) * 2013-04-01 2013-08-14 北京华亿宏图机电设备有限公司 Monitoring system for frequency-converting control of air compressor
CN203519173U (en) * 2013-04-12 2014-04-02 天津瑞能电气有限公司 Automatic recording device for temperature data of wind power frequency converter

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JPH03291446A (en) * 1990-04-06 1991-12-20 Matsushita Refrig Co Ltd Defrost controller for air conditioner
CN101821509A (en) * 2007-10-08 2010-09-01 艾默生环境优化技术有限公司 Compressor protection system and method
KR20090039486A (en) * 2007-10-18 2009-04-22 엘지전자 주식회사 Motor controller of air conditioner
CN203130465U (en) * 2013-04-01 2013-08-14 北京华亿宏图机电设备有限公司 Monitoring system for frequency-converting control of air compressor
CN203519173U (en) * 2013-04-12 2014-04-02 天津瑞能电气有限公司 Automatic recording device for temperature data of wind power frequency converter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949269A (en) * 2015-06-08 2015-09-30 广东美的暖通设备有限公司 System control method and device for overhigh module temperature
CN104949267A (en) * 2015-06-08 2015-09-30 广东美的暖通设备有限公司 Method and device for judging failure of frequency conversion module temperature detecting device
CN105299825A (en) * 2015-06-30 2016-02-03 广东美的暖通设备有限公司 Frequency-limiting protection method for air conditioner
CN105299825B (en) * 2015-06-30 2018-07-10 广东美的暖通设备有限公司 The limit frequency guard method of air-conditioning
CN105546754A (en) * 2016-01-04 2016-05-04 广东美的暖通设备有限公司 Temperature controlling method and device for converter and air conditioning
CN105546754B (en) * 2016-01-04 2019-07-19 广东美的暖通设备有限公司 Temprature control method, device and the air-conditioning of frequency converter
CN105546760A (en) * 2016-01-12 2016-05-04 芜湖美智空调设备有限公司 Air conditioner, and control method and device for compressor of air conditioner
CN105546760B (en) * 2016-01-12 2018-08-17 芜湖美智空调设备有限公司 Compressor control method, device and the air conditioner of air conditioner
CN108518827A (en) * 2018-02-28 2018-09-11 珠海格力电器股份有限公司 The control method and air-conditioning system of air-conditioning system
CN110425711A (en) * 2019-09-05 2019-11-08 宁波奥克斯电气股份有限公司 A kind of temprature control method of intelligent power module, device and air conditioner
CN111397077A (en) * 2020-02-24 2020-07-10 珠海格力电器股份有限公司 Temperature control method and device, storage medium and air conditioner
CN111397077B (en) * 2020-02-24 2021-03-23 珠海格力电器股份有限公司 Temperature control method and device, storage medium and air conditioner

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