CN101191651B - Sine DC frequency conversion multi-split air conditioner control system and its control method - Google Patents
Sine DC frequency conversion multi-split air conditioner control system and its control method Download PDFInfo
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Abstract
The present invention discloses a sine DC variable frequency one-driving-multiple air conditioner control system, comprising an outdoor unit controller, at least three indoor units and a DC variable frequency compressor, wherein, the outdoor unit controller further controls an outdoor unit intelligent control module, an intelligent frequency conversion module, an indoor-outdoor unit communication module and a temperature acquisition module; the outdoor unit intelligent control module is used for controlling the drive of the DC variable frequency compressor. The present invention also discloses a sine DC variable frequency one-driving-multiple air conditioner control method, which first calculates the needed frequency of the DC variable frequency compressor, and then calculates the instantaneous position and the velocity information of a DC variable frequency compressor rotor, and finally drives the DC variable frequency compressor. The present invention increases the service efficiency of the compressors of one-driving-multiple air conditioners, improves the high frequency characteristics and low frequency characteristics of air conditioners, and ensures that one-driving-multiple air conditioners save more energy.
Description
Technical field
The present invention relates to the DC frequency converting air-conditioner technical field, particularly drag many air-conditioner control systems and method thereof about sine DC frequency conversion one.
Background technology
Along with the arrival of energy crisis in the world wide, national governments are all promoting energy-saving and cost-reducing technology energetically for the purpose of sustainable economic development.As the capital equipment of household electricity, traditional fixed frequency air conditioner and AC frequency conversion air-conditioning are lowly withdrawn from the market gradually owing to its operational efficiency.Direct current varied-frequency air conditioner more and more is subjected to liking of users because of characteristics such as good energy-conservation, accurate temperature controlling, ultralow temperature start, heat fast.
One to drag many air-conditionings are a plurality of indoor sets of off-premises station band (more than or equal to three), and it has conserve space, and advantage such as reduce cost is subjected to the user always and pays close attention on market.Originally one to drag many air-conditionings mostly be to decide frequency one to drag many, AC frequency conversion one to drag many, they all have shortcoming separately.Frequently one drag the frequency of many air-conditionings not change such as fixed, no matter open an indoor set or a plurality of indoor set, the frequency of compressor is all the same, and the electric power that is consumed is also similar, even might open an indoor set than the more power consumption of a plurality of indoor sets; AC frequency conversion one drags many air-conditionings can regulate the running frequency of compressor according to the needs of indoor set, but the essence of AC frequency conversion compressor is AC asynchronous motor, and it does not have big breakthrough aspect energy-conservation; In the DC frequency converting air-conditioner, the motor of its DC frequency-changeable compressor is a DC Brushless Motor, its efficient is much better than AC asynchronous motor, and the energy consumption of air-conditioning is main just on compressor, so DC frequency converting air-conditioner is much better than AC frequency conversion air-conditioning and fixed frequency air conditioner on efficient, same, DC frequency-changing one drags many air-conditionings to be much better than to decide frequency one and drags many air-conditionings and AC frequency conversion one to drag many air-conditionings.
In the DC frequency converting air-conditioner technical field, a kind of compressor control scheme is the scheme with 120 degree controls, is trapezoidal wave control scheme again.This scheme adopts the zero passage detection method when the detection rotor position, select best change of current order according to zero crossing information and phase change logic.Present DC frequency converting air-conditioner mostly adopts this method to detect the position of compressor drum.But because the zero passage detection method can only detect some specific points, and along with motor speed changes on a large scale, the frequency conversion rate of back-emf also can change, and the filtering device in the testing circuit can bring certain phase shift, and this is the accuracy of influence detection zero crossing greatly; Simultaneously because the reversing the current effect of fly-wheel diode on the power device, under big current conditions, also can bring certain influence to the detection of zero crossing, and this detection mode needs the not conducting of detected phase, can only be used for 120 degree variable mode, and can't be used for the sinusoidal wave variable mode of 180 degree, this just greatly reduces the utilization ratio of compressor, and the low frequency characteristic of 120 degree control models is bad, vibration is big, this just makes this control model can not well bring into play the characteristic of DC frequency-changeable compressor, also makes the advantage of multi-split air conditioner well not bring into play.
For multi-split air conditioner, another technology emphasis is the FREQUENCY CONTROL of compressor.Because have a plurality of in the machine systems, there is ability need separately in machine system in each, can not be again as the one-to-one frequency-conversion air-conditioning system by the indoor set calculated rate, outdoor controller has moved according to interior unit frequency.
Summary of the invention
The problem to be solved in the present invention provides sine DC frequency conversion one and drags many air-conditioner control systems and control method thereof, improves the high frequency characteristics and the low frequency characteristic of multi-split air conditioner, and the energy-saving effect of many air-conditionings is dragged in raising one.
For achieving the above object, the technical scheme of embodiments of the invention proposes sine DC frequency conversion one and drags many air-conditioner control systems, comprises an outdoor controller, at least three indoor sets and a DC frequency-changeable compressor,
Described outdoor controller further comprises an off-premises station intelligent control module, an intelligent transducer module, an inside and outside machine communication module and a temperature collect module;
Described off-premises station intelligent control module is used to control the driving of described DC frequency-changeable compressor; Described off-premises station intelligent control module also comprises described frequency computation part unit, is used for according to indoor information and outdoor temperature information, calculates the frequency of the described DC frequency-changeable compressor that needs;
Described inside and outside machine communication module is used to control the communication of information between described each indoor set and the described off-premises station intelligent control module.
The technical scheme of embodiments of the invention proposes sine DC frequency conversion one and drags many air conditioning control methods, and this method may further comprise the steps:
A, gather a plurality of indoor sets design temperature, indoor environment temperature, interior function power and interior machine wind speed information separately, and described each indoor information is sent to the off-premises station intelligent control module;
B, gather outdoor temperature information, and described outdoor temperature information is sent to the off-premises station intelligent control module;
C, according to described indoor information and outdoor temperature information, the frequency of the described DC frequency-changeable compressor that needs by calculated with mathematical model;
D, calculate the DC frequency-changeable compressor three-phase current, and calculate the instantaneous position and the velocity information of described DC frequency-changeable compressor rotor according to described three-phase current according to bus current;
E, according to the frequency of the DC frequency-changeable compressor of the instantaneous position of described DC frequency-changeable compressor rotor and velocity information and described needs, the electric current of control intelligent transducer module output;
The current drives DC frequency-changeable compressor operation of F, the output of described intelligent transducer module.
The technical scheme of embodiments of the invention is dragged many air-conditionings by sine DC frequency conversion control one, has improved a high frequency characteristics and a low frequency characteristic that drags many air-conditionings, makes one drag the energy-saving effect of many air-conditionings near desirable.
Description of drawings
Fig. 1 is 120 degree control scheme compressor current oscillograms in the prior art;
Fig. 2 is the sinusoidal wave control of 180 a degree of the present invention compressor current oscillogram;
Fig. 3 is that sine DC frequency conversion one of the present invention drags many air-conditioner control systems figure;
Fig. 4 is the embodiment flow chart that sine DC frequency conversion one of the present invention drags many air conditioning control methods.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
Sine DC frequency conversion one of the present invention drags many air-conditioner control systems as shown in Figure 3, and this system comprises outdoor controller 1, at least three indoor sets and DC frequency-changeable compressors 2, and DC frequency-changeable compressor 2 comprises rotor 21 and press 22; Wherein outdoor controller 1 comprises off-premises station intelligent control module 11, intelligent transducer module 12, temperature collect module 13 and inside and outside machine communication module 14, and off-premises station intelligent control module 11 is used to control the driving of DC frequency-changeable compressor 2; Inside and outside machine communication module 14 is used to control the communication of each indoor set and 11 information of off-premises station intelligent control module; Off-premises station intelligent control module 11 further comprises position calculation and frequency conversion timing control unit 111 and frequency computation part unit 112; Frequency computation part unit 112 is used for according to indoor information and outdoor temperature information, calculates the frequency of the DC frequency-changeable compressor 2 that needs; Position calculation and frequency conversion timing control unit 111, be used for calculating the three-phase current of DC frequency-changeable compressor 2 according to bus current, and then the instantaneous position and the velocity information of calculating DC frequency-changeable compressor rotor 21, and according to the frequency of the DC frequency-changeable compressor 2 of the instantaneous position of rotor 21 and velocity information and described needs, the electric current of control intelligent transducer module 12 outputs; Position calculation and frequency conversion timing control unit 111 comprise that further 180 degree sine DC frequency conversion driven element unit 113, weak magnetic control system subelement 114, torque compensation subelement 115 and demagnetization current control subelement 116 automatically; 180 degree sine DC frequency conversion driven element unit 113 are used for the three-phase current of DC frequency-changeable compressor 2 is transformed to the revolution space phasor coordinate, realize the sine DC frequency conversion control to DC frequency-changeable compressor 2; Weak magnetic control system subelement 114 is used for when bus current is not enough to drive DC frequency-changeable compressor 2 and runs to the frequency of described needs, and magnetic control system theory a little less than using provides DC frequency-changeable compressor 2 demagnetizing currents to drive the frequency that it runs to described needs; Torque compensation subelement 115, be used for when DC frequency-changeable compressor 2 during at low-frequency operation, rotate at press 22 that the moment of resistance to press 22 detects in time in weeks, the size according to the big or small corresponding adjusting kinetic moment of press 22 moments of resistance reduces the low-frequency vibration of DC frequency-changeable compressor 2; Demagnetization current is controlled subelement 116 automatically, is used for controlling the D shaft current of DC frequency-changeable compressor 2 when rotor 21 is subjected to being enough to cause that its permanent magnet produces the counter field of demagnetization, and then controls the size of described counter field.
Embodiment one, and when adopting sine DC frequency conversion one shown in Figure 3 to drag many air-conditioner control systems, sine DC frequency conversion one of the present invention drags many air conditioning control methods flow process as shown in Figure 4, the present invention includes following steps:
Step S101, a plurality of indoor set collections design temperature, indoor environment temperature, interior function power and interior machine wind speed information separately, and described each indoor information is sent to off-premises station intelligent control module 11.
Step S102, temperature collect module 13 is gathered outdoor temperature information, and described outdoor temperature information is sent to off-premises station intelligent control module 11.
Step S103, the outdoor temperature information that indoor information that frequency computation part unit 112 obtains according to step S101 and step S102 obtain, the frequency of the DC frequency-changeable compressor 2 that needs by calculated with mathematical model, described step S103 further may further comprise the steps:
Frequency computation part unit 112 obtain according to step S101 each in function power and interior machine wind speed information, find the wind speed frequency weight of each indoor set by wind speed frequency weight form, described wind speed frequency weight form is:
| Indoor wind speed setting | Gentle breeze | Low wind | Apoplexy | High wind | Superelevation wind |
| The percentage Ki of rated frequency | 50％ | 60％ | 80％ | 100％ | 110％ |
Frequency computation part unit 112 according to described wind speed frequency weight, calculates indoor set wind speed weight by indoor set wind speed weight formula, and described indoor set wind speed weight formula is:
K＝∑Ki/n
Wherein K represents indoor set wind speed weight, and Ki represents machine wind speed weight in the i platform, and on behalf of indoor set, n effectively move the platform number.
Frequency computation part unit 112 calculates the indoor set temperature difference according to the indoor information and the outdoor temperature information of described each indoor set by indoor set temperature difference formula, and described indoor set temperature difference formula is:
ΔT＝∑(ΔTi*Vi)/∑Pi
Δ Ti=|Tst_i-Tnh_i| in the formula, Δ T represents the indoor set temperature difference, and Δ Ti represents the machine temperature difference in the i platform, and Tst_i represents the design temperature of machine in the i platform, and Tnh_i represents the environment temperature of machine in the i platform, and Vi represents machine designed capacity in the i platform.
Be in refrigeration mode when DC frequency-changing one drags many air-conditionings, frequency computation part unit 112 finds refrigeration temperature difference weight according to described indoor set temperature difference T by the refrigeration mode table, and described refrigeration mode table is:
| ΔT | ＜1 | ＝1 | ＝2 | ＝3 | ＞＝4 |
| Refrigeration temperature |
40％ | 70％ | 100％ | 120％ | 140％ |
Be in heating mode when DC frequency-changing one drags many air-conditionings, frequency computation part unit 112 is according to described indoor set temperature difference T, finds by the heating mode table and heats temperature difference weight, and described heating mode table is:
| ΔT | ＜1 | ＝1 | ＝2 | ＝3 | ＞＝4 |
| Heat temperature difference weight P | 50％ | 80％ | 110％ | 130％ | 160％ |
Described wind speed frequency weight form, heating mode table and refrigeration mode table are the experiment value with the relating to parameters of system.
Frequency computation part unit 112 is according to described indoor set wind speed weight and described indoor set temperature difference weight, calculates the frequency of the DC frequency-changeable compressor 2 that needs by the compressor frequency formula, and described compressor frequency formula is:
F＝F-ED×p×K
Target frequency is calculated in the F representative in the formula, and F-ED represents reference frequency, and P represents indoor set temperature difference weight, and K represents indoor set wind speed weight.
Step S104, position calculation and frequency conversion timing control unit 111 are calculated the three-phase current of DC frequency-changeable compressor 2 according to bus current, it is transformed to the revolution space phasor coordinate, and, calculate the instantaneous position and the velocity information of the rotor 21 of DC frequency-changeable compressor 2 according to the revolution space phasor coordinate of described three-phase current.
Step S105, the frequency of the DC frequency-changeable compressor 2 of the needs that the instantaneous position of the rotor 21 of the DC frequency-changeable compressor 2 that position calculation and frequency conversion timing control unit 111 obtain according to step S104 and velocity information and step S103 obtain, the electric current of control intelligent transducer module 12 outputs.
Step S106, current drives DC frequency-changeable compressor 2 operations of intelligent transducer module 12 outputs, described step S106 further may further comprise the steps:
When bus current is not enough to drive DC frequency-changeable compressor 2 and runs to the frequency of the needs that step S103 obtains, enable weak magnetic control system subelement 114, the weak magnetic control system theory of utilization provides DC frequency-changeable compressor 2 demagnetizing currents to drive the frequency that it runs to described needs.
When DC frequency-changeable compressor 2 during at low-frequency operation, enable torque compensation subelement 115, in the time in one week the moment of resistance of press 22 is carried out thousands of inferior detections in press runs, thereby correspondingly regulate the size of kinetic moment constantly according to the size of the press moment of resistance, reduce the low-frequency vibration of DC frequency-changeable compressor 2.
When rotor 21 is subjected to being enough to cause that its permanent magnet produces the counter field of demagnetization, enable demagnetization current and control subelement 116 automatically, control the D shaft current of the revolution space vector current of DC frequency-changeable compressor 2, and then control the size of described counter field.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a sine DC frequency conversion one drags many air-conditioner control systems, comprises an outdoor controller, at least three indoor sets and a DC frequency-changeable compressor, it is characterized in that,
Described outdoor controller further comprises an off-premises station intelligent control module, an intelligent transducer module, an inside and outside machine communication module and a temperature collect module;
Described off-premises station intelligent control module is used to control the driving of described DC frequency-changeable compressor; Described off-premises station intelligent control module also comprises described frequency computation part unit, is used for according to indoor information and outdoor temperature information, calculates the frequency of the described DC frequency-changeable compressor that needs;
Described inside and outside machine communication module is used to control the communication of information between described each indoor set and the described off-premises station intelligent control module.
2. sine DC frequency conversion one as claimed in claim 1 drags many air-conditioner control systems, it is characterized in that, described off-premises station intelligent control module further comprises frequency computation part unit and position calculation and frequency conversion timing control unit,
Described frequency computation part unit is used for according to indoor information and outdoor temperature information, calculates the frequency of the described DC frequency-changeable compressor that needs;
Described position calculation and frequency conversion timing control unit, be used for calculating the three-phase current of described DC frequency-changeable compressor according to bus current, and then calculate the instantaneous position and the velocity information of the rotor of described DC frequency-changeable compressor, and, control the electric current of described intelligent transducer module output according to the frequency of the DC frequency-changeable compressor of described needs.
3. sine DC frequency conversion one as claimed in claim 2 drags many air-conditioner control systems, it is characterized in that, described position calculation and frequency conversion timing control unit comprise that further 180 degree sine DC frequency conversion driven element unit, weak magnetic control system subelement, torque compensation subelement and demagnetization current control subelement automatically
Described 180 degree sine DC frequency conversion driven element unit are used for the three-phase current of described DC frequency-changeable compressor is transformed to the revolution space phasor coordinate, realize the sine DC frequency conversion control to described DC frequency-changeable compressor;
Described weak magnetic control system subelement is used for providing described DC frequency-changeable compressor demagnetizing current to drive the frequency that it runs to needs when bus current is not enough to drive described DC frequency-changeable compressor and runs to the frequency of needs;
Described torque compensation subelement is used for reducing the low-frequency vibration of described DC frequency-changeable compressor when described DC frequency-changeable compressor during at low-frequency operation;
Described demagnetization current is controlled subelement automatically, is used for controlling the size of described counter field when described DC frequency-changeable compressor rotor is subjected to being enough to cause that its permanent magnet produces the counter field of demagnetization.
4. a sine DC frequency conversion one drags many air conditioning control methods, it is characterized in that, may further comprise the steps:
A, gather a plurality of indoor sets design temperature, indoor environment temperature, interior function power and interior machine wind speed information separately, and described each indoor information is sent to the off-premises station intelligent control module;
B, gather outdoor temperature information, and described outdoor temperature information is sent to the off-premises station intelligent control module;
C, according to described indoor information and outdoor temperature information, the frequency of the described DC frequency-changeable compressor that needs by calculated with mathematical model;
D, calculate the DC frequency-changeable compressor three-phase current, and calculate the instantaneous position and the velocity information of described DC frequency-changeable compressor rotor according to described three-phase current according to bus current;
E, according to the frequency of the DC frequency-changeable compressor of the instantaneous position of described DC frequency-changeable compressor rotor and velocity information and described needs, the electric current of control intelligent transducer module output;
The described DC frequency-changeable compressor operation of the current drives of F, the output of described intelligent transducer module.
5. sine DC frequency conversion one as claimed in claim 4 drags many air conditioning control methods, it is characterized in that, described step F further may further comprise the steps:
F1, when bus current is not enough to drive described DC frequency-changeable compressor and runs to the frequency of described needs, the weak magnetic control system theory of utilization provides described DC frequency-changeable compressor demagnetizing current;
F2, when described DC frequency-changeable compressor during at low-frequency operation, rotate at press that the moment of resistance to press detects in time in a week, size according to the big or small corresponding adjusting kinetic moment of the described press moment of resistance reduces the low-frequency vibration of described DC frequency-changeable compressor;
F3, when described DC frequency-changeable compressor rotor is subjected to being enough to causing that its permanent magnet produces the counter field of demagnetization, control the D shaft current of described DC frequency-changeable compressor, and then control the size of described counter field.
6. sine DC frequency conversion one as claimed in claim 4 drags many air conditioning control methods, it is characterized in that, the described Mathematical Modeling among the described step C is:
F＝F-ED×P×K
Target frequency is calculated in described F representative, and described F-ED represents reference frequency, and described P represents indoor set temperature difference weight, and described K represents indoor set wind speed weight.
7. sine DC frequency conversion one as claimed in claim 6 drags many air conditioning control methods, it is characterized in that, in the described Mathematical Modeling, described indoor set wind speed weight calculates by following formula:
K＝∑Ki/n
Described K represents indoor set wind speed weight, and described Ki represents machine wind speed weight in the i platform, and on behalf of indoor set, described n effectively move the platform number.
8. sine DC frequency conversion one as claimed in claim 6 drags many air conditioning control methods, it is characterized in that,
Described indoor set temperature difference weight is further divided into refrigeration temperature difference weight and heats temperature difference weight, be respectively applied for refrigeration mode and heating mode, described refrigeration temperature difference weight and to heat temperature difference weight corresponding with the indoor set temperature difference respectively, its corresponding relation is determined by the empirical value relevant with systematic parameter.
9. sine DC frequency conversion one as claimed in claim 8 drags many air conditioning control methods, it is characterized in that, in the described indoor set temperature difference weight, the described indoor set temperature difference calculates by following formula:
ΔT＝∑(ΔTi*Vi)/∑Pi
Described Δ Ti=|Tst_i-Tnh_i|, described Δ T represents the indoor set temperature difference, described Δ Ti represents the i platform indoor set temperature difference, described Tst_i represents the design temperature of i platform indoor set, described Tnh_i represents the environment temperature of i platform indoor set, described Vi represents i platform indoor set designed capacity, and described Pi represents i platform indoor set temperature difference weight.
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| TWI405939B (en) * | 2010-06-30 | 2013-08-21 | Chunghwa Telecom Co Ltd | Method for controlling freezing ability of a fixed-frequency freezing ac ice-water system |
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| CN102338441B (en) * | 2010-07-27 | 2013-09-18 | 中华电信股份有限公司 | Method for regulating and controlling freezing ability of fixed-frequency freezing air-conditioning ice-water system |
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| CN103501147B (en) * | 2013-09-23 | 2016-04-06 | 广东美芝精密制造有限公司 | Prevent the method that compressor demagnetizes |
| CN105571047A (en) * | 2014-10-14 | 2016-05-11 | 青岛海尔科技有限公司 | Control method and device for rapid refrigerating or rapid heating of direct-current variable frequency air conditioner |
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| CN107143979B (en) * | 2017-05-22 | 2019-11-05 | 青岛海尔空调器有限总公司 | Control method, control device and the air conditioner of multi-split air conditioner |
| CN108937787B (en) * | 2018-07-17 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Variable frequency driving method and device and computer readable storage medium |
| CN111256291A (en) * | 2018-11-30 | 2020-06-09 | 广东美的制冷设备有限公司 | Drive control method and system, compressor, air conditioner and computer storage medium |
| CN112303843A (en) * | 2020-09-29 | 2021-02-02 | 青岛海尔空调电子有限公司 | Method for determining reference frequency of compressor in multi-split air conditioner |
| CN114200206B (en) * | 2021-12-07 | 2023-02-10 | 嘉兴丹那赫电子科技有限公司 | Frequency converter convenient to monitor and monitoring method thereof |
| CN114704936B (en) * | 2022-02-18 | 2024-04-09 | 青岛国创智能家电研究院有限公司 | Method and device for controlling direct current air conditioner and direct current air conditioner |
| CN115164353A (en) * | 2022-06-10 | 2022-10-11 | 青岛海尔空调器有限总公司 | Air conditioner display method and device, air conditioner and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521540Y (en) * | 2001-11-26 | 2002-11-20 | 顺德市华傲电子有限公司 | Controller for frequency conversion one main air conditioner with multi-auxiliary machines |
| KR20030062551A (en) * | 2002-01-17 | 2003-07-28 | 엘지전자 주식회사 | Control apparatus for airconditioner |
| CN1492199A (en) * | 2002-10-23 | 2004-04-28 | 上海日立电器有限公司 | Digital intelligent flow distribution controller |
| JP2005124278A (en) * | 2003-10-15 | 2005-05-12 | Matsushita Electric Ind Co Ltd | Inverter control unit and air conditioner |
| KR20050079492A (en) * | 2004-02-06 | 2005-08-10 | 엘지전자 주식회사 | A control method of inverter air conditioner |
| JP2006014580A (en) * | 2004-05-25 | 2006-01-12 | Matsushita Electric Ind Co Ltd | Power supply device and air conditioner using same |
-
2006
- 2006-11-29 CN CN2006101450006A patent/CN101191651B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521540Y (en) * | 2001-11-26 | 2002-11-20 | 顺德市华傲电子有限公司 | Controller for frequency conversion one main air conditioner with multi-auxiliary machines |
| KR20030062551A (en) * | 2002-01-17 | 2003-07-28 | 엘지전자 주식회사 | Control apparatus for airconditioner |
| CN1492199A (en) * | 2002-10-23 | 2004-04-28 | 上海日立电器有限公司 | Digital intelligent flow distribution controller |
| JP2005124278A (en) * | 2003-10-15 | 2005-05-12 | Matsushita Electric Ind Co Ltd | Inverter control unit and air conditioner |
| KR20050079492A (en) * | 2004-02-06 | 2005-08-10 | 엘지전자 주식회사 | A control method of inverter air conditioner |
| JP2006014580A (en) * | 2004-05-25 | 2006-01-12 | Matsushita Electric Ind Co Ltd | Power supply device and air conditioner using same |
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