CN104713204A - Air conditioning unit and control method - Google Patents
Air conditioning unit and control method Download PDFInfo
- Publication number
- CN104713204A CN104713204A CN201310677026.5A CN201310677026A CN104713204A CN 104713204 A CN104713204 A CN 104713204A CN 201310677026 A CN201310677026 A CN 201310677026A CN 104713204 A CN104713204 A CN 104713204A
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- air
- cooling system
- independent cooling
- conditioner set
- Prior art date
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning unit and a control method. The air conditioning unit disclosed by the invention comprises a frequency converter, an independent cooling system, and a unit control device, wherein the independent cooling system is used for cooling and heat dissipation of the frequency converter; and the unit control device is used for detecting the working state of the frequency converter, and controlling the independent cooling system to start or halt according to the working state of the frequency converter. According to the air conditioning unit and the control method, the independent cooling system is provided and is controlled to start and halt according to the working state of the frequency converter, namely if the frequency converter works, the independent cooling system is started, and if the frequency converter does not work, the independent cooling system is halted, so that the problem that the cooling of the frequency converter can be realized only through a refrigerating circulating system in the prior art is solved and the problem of the air conditioning unit that the frequency converter cannot be cooled when the refrigerating circuiting system does not run is solved.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of air-conditioner set and control method.
Background technology
In prior art, the frequency converter cooling of air-conditioner set is generally all relied on to the cooling cycle system of unit, such as the power electronics of cooling frequency converter is mounted to have thermally conductive relation with a fin, and the cold-producing medium exported from the condenser of cooling cycle system by flow pipe is to fin, thus make cold-producing medium and fin have thermally conductive relation, flow pipe is provided with control valve, for regulating the refrigerant flow by pipeline, remain within the scope of needs to make heatsink temperature.
But, could must cool frequency converter when cooling cycle system work the mode of frequency converter cooling in prior art, and when some is special, such as PV air-conditioner unit, when operating in pure photovoltaic generation mode of operation, the cooling cycle system of unit does not work, but frequency converter needs work, can all be used for network system power transmission to be generated electricity by photovoltaic generating system.As long as frequency converter, in work, will generate heat, just need cooling system to cool it.
Summary of the invention
The present invention aims to provide a kind of air-conditioner set to frequency converter cooling heat dissipation better effects and if control method.
The invention provides a kind of air-conditioner set, comprising: frequency converter; Independent cooling system, for frequency converter cooling heat dissipation; Machine set control device, detects the duty of frequency converter; And according to the duty of frequency converter, control independent cooling system and open or stop.
Further, machine set control device comprises the first temperature controller, the first temperature controller testing environment temperature, and environmentally temperature controls the design temperature of independent cooling system.
Further, machine set control device also comprises the second temperature controller, and the second temperature controller detects the temperature of frequency converter, and controls the refrigerant flow of independent cooling system according to the temperature of frequency converter.
Further, air-conditioner set also comprises cycle refrigeration system, and cycle refrigeration system and independent cooling system independently control; Cycle refrigeration system comprises compressor, and frequency converter is that compressor variable frequency is powered.
Further, cycle refrigeration system also comprises frequency converter cooling line, and frequency converter cooling line and frequency converter have thermally conductive relation.
Further, air-conditioner set also comprises photovoltaic electrification component, and the electric energy that photovoltaic electrification component produces by frequency converter supplies compressor or is incorporated to public electric wire net.
Further, machine set control device comprises photovoltaic controller, and photovoltaic controller controls photovoltaic electrification component and opens or stop.
Present invention also offers a kind of air-conditioner set control method, method comprises: the duty detecting frequency converter; According to the duty of frequency converter, control independent cooling system and open or stop.
Further, method also comprises: when independent cooling system is opened, testing environment temperature; Environmentally temperature controls the design temperature of independent cooling system.
According to air-conditioner set of the present invention and control method, by arranging independent cooling system, and according to the duty of frequency converter, controlling independent cooling system and open or stop.I.e. frequency converter work, the then unlatching of independent cooling system, frequency converter does not work, then independent cooling system stops, the cooling solving frequency converter in prior art must rely on the problem of cooling cycle system, thus solve air-conditioner set cooling cycle system do not run just cannot to frequency converter cooling problem.
Accompanying drawing explanation
The accompanying drawing 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 is the structured flowchart according to air-conditioner set of the present invention.
Detailed description of the invention
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, according to air-conditioner set of the present invention, comprising: frequency converter 10; Independent cooling system 20, for frequency converter 10 cooling heat dissipation; Machine set control device 30, detects the duty of frequency converter 10; And according to the duty of frequency converter 10, control independent cooling system 20 and open or stop.Namely the present invention is by arranging independent cooling system 20, and according to the duty of frequency converter 10, controls independent cooling system 20 and open or stop.Also namely frequency converter 10 works, the then unlatching of independent cooling system 20, frequency converter 10 does not work, then independent cooling system 20 stops, the cooling solving frequency converter 10 in prior art must rely on the problem of cooling cycle system, thus solve air-conditioner set cooling cycle system do not run just cannot to frequency converter 10 cool problem.
Preferably, machine set control device 30 also comprises the first temperature controller, the first temperature controller testing environment temperature, and environmentally temperature controls the design temperature of independent cooling system 20.By testing environment temperature, thus control the design temperature of independent cooling system, namely independent cooling system is while to frequency converter 10 cooling heat dissipation, also can play the effect of the temperature of the environment at adjusting air conditioning group place.Such as, corresponding generally have special machine room for larger-size business air conditioner unit, and at basement or the roof of building, independent cooling system can also play the effect regulating machine room environment temperature.Also namely independent cooling system is equivalent to a set of minitype air conditioner, has the effect of adjusting ambient temperature, makes environment temperature remain on the upper and lower certain limit of design temperature, as long as machine set control device 30 changes the object that this design temperature just can reach the temperature that controls environment.
Preferably, machine set control device 30 also comprises the second temperature controller, and the second temperature controller detects the temperature of frequency converter 10, and controls the refrigerant flow of independent cooling system 20 according to the temperature of frequency converter 10.Usually, the cooling line of independent cooling system 20 pairs of frequency converter cooling heat dissipations is provided with flow control valve, by detecting the temperature of frequency converter 10, thus control flow check control valve, the temperature of frequency converter 10 is remained in suitable scope.
Air-conditioner set also comprises the refrigeration system that cycle refrigeration system 40(is equivalent to air-conditioner set of the prior art), cycle refrigeration system 40 controls with independent cooling system 20 is independent, and the two refrigerant also completely cuts off mutually.Also namely independent cooling system 20 unlatching or close and open or close independent control with cycle refrigeration system 40, prevent the two from mutually interfering, also make the cooling heat dissipation of frequency converter 10 completely only be subject to frequency converter whether to work relevant, and do not disturb by other factors.Cycle refrigeration system 40 comprises compressor, and frequency converter 10 is powered for compressor, and controls compressor variable frequency, thus regulates the refrigerating capacity of cycle refrigeration system 40.
Preferably, cycle refrigeration system 40 is provided with frequency converter cooling line equally, frequency converter cooling line is to frequency converter cooling heat dissipation.Namely in the present invention, when cycle refrigeration system 40 runs, frequency converter 10 can adopt the frequency converter cooling line cooling heat dissipation of cycle refrigeration system 40, when cycle refrigeration system 40 does not run, adopt independent cooling system 20 cooling heat dissipation, air-conditioner set is run more energy-conservation.Certainly, air-conditioner set of the present invention also can adopt independent cooling system 20 pairs of frequency converter cooling heat dissipations all the time.
Preferably, air-conditioner set also comprises photovoltaic electrification component, when the compressor operating of cycle refrigeration system 40, and the electric energy supply compressor that photovoltaic electrification component produces by frequency converter 10, thus economize energy.When compressor does not work, photovoltaic electrification component generates electricity and all can be used for public electric wire net system power transmission after frequency conversion by frequency converter 10.Machine set control device has corresponding photovoltaic controller, and photovoltaic controller controls photovoltaic electrification component and opens or stop, and when photovoltaic electrification component unlatching work, can produce a part of electric energy, thus make air-conditioner set more energy-conservation.
Be provided with relative cooling cycle system independently independent cooling system due to air-conditioner set of the present invention to frequency converter 10, its control method also correspondingly changes.Air-conditioner set comprises machine set control device 30, and the operation of machine set control device 30 Unit Commitment, frequency converter start and stop operation, independent cooling system start and stop, the design temperature also controlling independent cooling system makes it the effect playing adjusting ambient temperature.
Particularly, machine set control device 30 detects the running status of frequency converter 10, when frequency converter 10 is in operation, is opened by independent cooling system 20, and independent cooling system 20 provides low temperature refrigerant to frequency converter 10 cooling heat dissipation; When frequency converter 10 quits work, independent cooling system 20 is stopped, cooling is stopped to frequency converter 10, prevents frequency converter 10 temperature too low, frequency converter 10 temperature is remained in the temperature range of needs.In addition, when controlling independent cooling system 20 and opening, the design temperature simultaneously controlling independent cooling system 20 makes environment temperature maintain in the upper and lower certain limit of design temperature, makes independent cooling system play the effect of adjusting ambient temperature.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to air-conditioner set of the present invention, by arranging independent cooling system, and according to the duty of frequency converter, controlling independent cooling system and open or stop.I.e. frequency converter work, the then unlatching of independent cooling system, frequency converter does not work, then independent cooling system stops, the cooling solving frequency converter in prior art must rely on the problem of cooling cycle system, thus solve air-conditioner set cooling cycle system do not run just cannot to frequency converter cooling problem.
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 (9)
1. an air-conditioner set, is characterized in that, comprising:
Frequency converter (10);
Independent cooling system (20), for frequency converter (10) cooling heat dissipation;
Machine set control device (30), detects the duty of described frequency converter (10); And according to the duty of described frequency converter (10), control described independent cooling system (20) and open or stop.
2. air-conditioner set according to claim 1, is characterized in that,
Described machine set control device (30) comprises the first temperature controller, described first temperature controller testing environment temperature, and controls the design temperature of described independent cooling system (20) according to described environment temperature.
3. air-conditioner set according to claim 1 and 2, is characterized in that,
Described machine set control device (30) also comprises the second temperature controller, and described second temperature controller detects the temperature of described frequency converter (10), and controls the refrigerant flow of described independent cooling system (20) according to the temperature of described frequency converter (10).
4. air-conditioner set according to claim 1 and 2, is characterized in that,
Described air-conditioner set also comprises cycle refrigeration system (40), and described cycle refrigeration system (40) controls with described independent cooling system (20) is independent;
Described cycle refrigeration system (40) comprises compressor, and described frequency converter (10) is powered for described compressor.
5. air-conditioner set according to claim 4, is characterized in that,
Described cycle refrigeration system (40) also comprises frequency converter cooling line, and described frequency converter cooling line and described frequency converter have thermally conductive relation.
6. air-conditioner set according to claim 4, is characterized in that,
Described air-conditioner set also comprises photovoltaic electrification component, and the electric energy that described photovoltaic electrification component produces is supplied described compressor and/or is incorporated to public electric wire net by described frequency converter (10).
7. air-conditioner set according to claim 6, is characterized in that,
Described machine set control device (30) comprises photovoltaic controller, and described photovoltaic controller controls described photovoltaic electrification component and opens or stop.
8. an air-conditioner set control method, is characterized in that, described method comprises:
Detect the duty of frequency converter (10);
According to the duty of described frequency converter (10), control independent cooling system (20) and open or stop.
9. air-conditioner set control method according to claim 8, is characterized in that, described method also comprises:
When described independent cooling system (20) is opened, testing environment temperature;
The design temperature of described independent cooling system (20) is controlled according to described environment temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677026.5A CN104713204B (en) | 2013-12-11 | 2013-12-11 | Air-conditioner set and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677026.5A CN104713204B (en) | 2013-12-11 | 2013-12-11 | Air-conditioner set and control method |
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| CN104713204A true CN104713204A (en) | 2015-06-17 |
| CN104713204B CN104713204B (en) | 2018-06-01 |
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| CN201310677026.5A Active CN104713204B (en) | 2013-12-11 | 2013-12-11 | Air-conditioner set and control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978299A (en) * | 2016-07-05 | 2016-09-28 | 沈阳远大电力电子科技有限公司 | Water cooling and high voltage frequency converter system |
| CN110351987A (en) * | 2019-07-15 | 2019-10-18 | 珠海格力电器股份有限公司 | Radiator, controller, photovoltaic electrical equipment and heat dissipating method |
| CN111174369A (en) * | 2019-12-30 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method of photovoltaic direct-drive variable frequency air conditioner, computer readable storage medium and air conditioner |
| CN111447809A (en) * | 2020-05-13 | 2020-07-24 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner, cooling assembly and control method of cooling assembly |
| US10928080B2 (en) | 2015-11-09 | 2021-02-23 | Carrier Corporation | Climate control outdoor unit with inverter cooling |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10928080B2 (en) | 2015-11-09 | 2021-02-23 | Carrier Corporation | Climate control outdoor unit with inverter cooling |
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| CN110351987A (en) * | 2019-07-15 | 2019-10-18 | 珠海格力电器股份有限公司 | Radiator, controller, photovoltaic electrical equipment and heat dissipating method |
| CN110351987B (en) * | 2019-07-15 | 2024-02-23 | 珠海格力电器股份有限公司 | Radiator, controller, photovoltaic electric equipment and radiating method |
| CN111174369A (en) * | 2019-12-30 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method of photovoltaic direct-drive variable frequency air conditioner, computer readable storage medium and air conditioner |
| CN111447809A (en) * | 2020-05-13 | 2020-07-24 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner, cooling assembly and control method of cooling assembly |
| CN111447809B (en) * | 2020-05-13 | 2023-10-24 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner, cooling assembly and control method of cooling assembly |
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| CN104713204B (en) | 2018-06-01 |
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