CN104019528B - The energy-efficient operating control algolithm of convertible frequency air-conditioner - Google Patents
The energy-efficient operating control algolithm of convertible frequency air-conditioner Download PDFInfo
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Abstract
The invention discloses a kind of energy-efficient operating control algolithm of convertible frequency air-conditioner, the difference of detection target condensation temperature and current condensation temperature, the difference of target evaporating temperature and current evaporating temperature, it is determined that electric expansion valve and compressor, the control logic of indoor fan and off-premises station blower fan；To improve the highest Energy Efficiency Ratio for target, it is control target control operation of air conditioner to the maximum with the Energy Efficiency Ratio in the unit interval, reaches the purpose that air-conditioning is more energy-conservation, weaken the comfort level of user, improve the Energy Efficiency Ratio of air-conditioning。
Description
Technical field
The present invention relates to energy-saving operation of frequency converting air conditioner control field, specifically a kind of energy-efficient operating control algolithm of convertible frequency air-conditioner。
Background technology
The control of convertible frequency air-conditioner runs in the market is with user satisfaction for main target, it is heat with refrigerating capacity as controlling target with what improve generation in the unit interval from technical standpoint, but such air-conditioning tend to consumption relatively larger, Energy Efficiency Ratio is relatively low, operating cost improve。
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, the invention provides a kind of energy-efficient operating control algolithm of convertible frequency air-conditioner, comprise the steps:
The difference of step one, detection target condensation temperature and current condensation temperature, the difference of target evaporating temperature and current evaporating temperature, it is determined that electric expansion valve and compressor, the control logic of indoor fan and off-premises station blower fan；
Step 2, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, it is necessary to improve current condensation temperature, until target condensation temperature is equal to current condensation temperature, this secondary control terminates, and target approach temperature value adjusts logic；
Step 3, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, current Energy Efficiency Ratio meets, target approach temperature value adjust logic；
Step 4, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by first improving compressor frequency, until target condensation temperature is equal to current condensation temperature, then improving is indoor set rotation speed of fan, the method increasing electronic expansion valve opening reduces current evaporating temperature, and when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic；
Step 5, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by improving indoor set rotation speed of fan, the method increasing electronic expansion valve opening reduces current evaporating temperature, when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic；
Step 6, target temperature adjust logic, target condensation temperature is raised N1 degree, target evaporating temperature is lowered N2 degree, after stablizing Deng system pressure, recurrence performs step one ~ step 5 again, adjusts frequency according to target temperature and Current Temperatures difference, wind speed and electronic expansion valve opening, increase Energy Efficiency Ratio, before adjusting target temperature, the target temperature adjusted last time need to be noted down every time。
Further, step 2 first passes through raising compressor frequency, until target condensation temperature is equal to current condensation temperature。
Further, the ambient temperature according to current indoor machine and off-premises station, according to national standard experiment test, choose the highest inner disc of Energy Efficiency Ratio and outer disk temperature as target condensation temperature and target evaporating temperature。
Further, the target control temperature according to inner disc, choose suitable initial EEV aperture and compressor original frequency, complete machine brings into operation。
Further; the end adjusted: after repeatedly recurrence adjustment; when system trigger system protection first, current Energy Efficiency Ratio adjustment terminates, and then whole system carries out high energy efficiency ratio operating with front target condensation and the evaporating temperature of non-trigger protection for target evaporation and condensation temperature。
The energy-efficient operating control algolithm of convertible frequency air-conditioner of the present invention, to improve Energy Efficiency Ratio for target, is control target control operation of air conditioner to the maximum with the Energy Efficiency Ratio in the unit interval, reaches the purpose that air-conditioning is more energy-conservation, weaken the comfort level of user, improve the Energy Efficiency Ratio of air-conditioning。
Accompanying drawing explanation
Fig. 1 is the flow chart of the energy-efficient operating control algolithm of convertible frequency air-conditioner of the present invention。
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described。
As it is shown in figure 1, this example adopts coolant to be R410A, it is suitable for other contain the figure coolant controlled according to pressure。
(pressure contains figure) is schemed, during operation of air conditioner, when compressor frequency is fixing by the PH of coolant, it is believed that input electric power is constant, by improving the condensation temperature of coolant and reducing the evaporating temperature of coolant, it is possible to increase refrigerating/heating amount between unit, thus improving Energy Efficiency Ratio。
Improve the refrigerating capacity in the unit interval and can pass through indoor set blower fan, electric expansion valve, compressor frequency and the control of off-premises station fan comprehensive。Specifically comprise the following steps that
One, the ambient temperature according to current indoor machine and off-premises station, according to national standard experiment test, chooses the highest inner disc of Energy Efficiency Ratio and outer disk temperature as target control temperature。
Two, the target control temperature according to inner disc, chooses suitable initial EEV aperture and compressor original frequency (the two is all obtained) by experiment, and complete machine brings into operation。
Three, wait that complete machine operating pressure is stablized later, the difference of detection target condensation temperature and current condensation temperature, the difference of target evaporating temperature and current evaporating temperature, it is determined that electric expansion valve and compressor, the control logic of indoor fan and off-premises station blower fan。
Four, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, need to improve current condensation temperature, thus improving Energy Efficiency Ratio, by first improving compressor frequency, until target condensation temperature is equal to current condensation temperature, thus improving Energy Efficiency Ratio, this secondary control terminates, and target approach temperature value adjusts logic。
Five, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, current Energy Efficiency Ratio meets, and target approach temperature value adjusts logic。
Six, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by first improving compressor frequency, until target condensation temperature is equal to current condensation temperature, then improving is indoor set rotation speed of fan, and the method increasing electronic expansion valve opening reduces current evaporating temperature, thus improving Energy Efficiency Ratio, when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic。
Seven, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by improving indoor set rotation speed of fan, the method increasing electronic expansion valve opening reduces current evaporating temperature, thus improving Energy Efficiency Ratio, when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic。
Eight, target temperature adjusts logic, after above-mentioned condition meets, enter target temperature adjust logic, target condensation temperature is raised N1 degree (obtaining N1 by experiment, be once generally), target evaporating temperature is lowered N2 degree and (obtains N2 by experiment, once it is generally), after stablizing Deng system pressure, recurrence performs step 3 ~ step 7 again, adjusts frequency according to target temperature and Current Temperatures difference, wind speed and electronic expansion valve opening, increase Energy Efficiency Ratio。Before adjusting target temperature, the target temperature adjusted last time need to be noted down every time。
Nine, the end adjusted: after repeatedly recurrence adjustment; when system trigger system protection first; current Energy Efficiency Ratio adjustment terminates, and then whole system carries out high energy efficiency ratio operating with front target condensation and the evaporating temperature of non-trigger protection for target evaporation and condensation temperature。
Claims (4)
1. the energy-efficient operating control algolithm of convertible frequency air-conditioner, comprises the steps:
The difference of step one, detection target condensation temperature and current condensation temperature, the difference of target evaporating temperature and current evaporating temperature, it is determined that electric expansion valve and compressor, the control logic of indoor fan and off-premises station blower fan；
Step 2, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, it is necessary to improve current condensation temperature, until target condensation temperature is equal to current condensation temperature, this secondary control terminates, and target approach temperature value adjusts logic；
Step 3, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is more than current evaporating temperature, current Energy Efficiency Ratio meets, target approach temperature value adjust logic；
Step 4, when target condensation temperature is more than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by first improving compressor frequency, until target condensation temperature is equal to current condensation temperature, then improving is indoor set rotation speed of fan, the method increasing electronic expansion valve opening reduces current evaporating temperature, and when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic；
Step 5, when target condensation temperature is less than current condensation temperature, when target evaporating temperature is less than current evaporating temperature, by improving indoor set rotation speed of fan, the method increasing electronic expansion valve opening reduces current evaporating temperature, when target evaporating temperature is equal to current evaporating temperature, target approach temperature adjusts logic；
Step 6, target temperature adjust logic, target condensation temperature is raised N1 degree, target evaporating temperature is lowered N2 degree, after stablizing Deng system pressure, recurrence performs step one ~ step 5 again, adjusts frequency according to target temperature and Current Temperatures difference, wind speed and electronic expansion valve opening, increase Energy Efficiency Ratio, before adjusting target temperature, the target temperature adjusted last time need to be noted down every time；
The end adjusted: after repeatedly recurrence adjustment; when system trigger system protection first; current Energy Efficiency Ratio adjustment terminates, and then whole system carries out high energy efficiency ratio operating with front target condensation and the evaporating temperature of non-trigger protection for target evaporation and condensation temperature。
2. the energy-efficient operating control algolithm of convertible frequency air-conditioner as claimed in claim 1, it is characterised in that: step 2 first passes through raising compressor frequency, until target condensation temperature is equal to current condensation temperature。
3. the energy-efficient operating control algolithm of convertible frequency air-conditioner as claimed in claim 1, it is characterized in that: the ambient temperature according to current indoor machine and off-premises station, according to national standard experiment test, choose the highest inner disc of Energy Efficiency Ratio and outer disk temperature as target condensation temperature and target evaporating temperature。
4. the energy-efficient operating control algolithm of convertible frequency air-conditioner as claimed in claim 3, it is characterised in that: the target control temperature according to inner disc, choose suitable initial EEV aperture and compressor original frequency, complete machine brings into operation。
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| CN201410293919.4A CN104019528B (en) | 2014-06-26 | 2014-06-26 | The energy-efficient operating control algolithm of convertible frequency air-conditioner |
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| CN106642581B (en) * | 2016-12-26 | 2019-07-12 | Tcl空调器(中山)有限公司 | Air-conditioner control method and system |
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| CN111981654B (en) * | 2020-08-19 | 2021-12-21 | 海信（山东）空调有限公司 | Control method for optimizing energy efficiency of air conditioner |
| CN112594770A (en) * | 2020-12-16 | 2021-04-02 | 浙江中广电器股份有限公司 | Variable-frequency waterless floor heating control method, controller, heating system and dual supply system |
| CN113503624B (en) * | 2021-07-09 | 2022-11-18 | 武汉汉立制冷科技股份有限公司 | Multi-target linkage response control method for refrigerating system |
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