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Efficient and energy-saving control algorithm for variable frequency air conditioner

A high-efficiency energy-saving, operation control technology, applied in heating and ventilation control systems, space heating and ventilation, household heating, etc., can solve problems such as increased operating costs, low energy efficiency ratio, high energy consumption of air conditioners, etc., to achieve weakened comfort Degree, the effect of improving the energy efficiency ratio

Active Publication Date: 2014-09-03
东元总合科技(杭州)有限公司
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Problems solved by technology

[0002] At present, the control operation of frequency conversion air conditioners on the market is based on user satisfaction as the main goal. From a technical point of view, the control goal is to increase the heating and cooling capacity generated per unit time. However, such air conditioners often consume a lot of energy. The energy efficiency ratio is relatively low, and the operating cost is increased

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  • Efficient and energy-saving control algorithm for variable frequency air conditioner

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] Such as figure 1 As shown, the refrigerant used in this example is R410A, and the present invention is also applicable to other refrigerants controlled according to the pressure and culvert diagram.

[0018] According to the PH diagram (pressure and culvert diagram) of the refrigerant, when the air conditioner is running, when the frequency of the compressor is fixed, it can be considered that the input electric power is constant. By increasing the condensation temperature of the refrigerant and reducing the evaporation temperature of the refrigerant, the internal cooling / cooling between units can be increased. Heating capacity, thereby improving the energy efficiency ratio.

[0019] To increase the cooling capacity per unit time, the indoor unit fan, electronic expansion valve, compressor frequency and outdoor unit fan can be comprehensively controlled. Specific s...

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Abstract

The invention discloses an efficient and energy-saving control algorithm for a variable frequency air conditioner. The efficient and energy-saving control algorithm comprises the following steps: detecting a difference value between a target condensation temperature and a current condensation temperature and a difference value between a target evaporation temperature and a current evaporation temperature; determining control logics of an electronic expansion valve and a compressor, an indoor draught fan and a draught fan of an outdoor unit; and controlling the operation of the air conditioner by taking the highest energy efficiency ratio as a target and taking the maximum energy efficiency ratio in unit time as a control target so as to realize the energy-saving aim, weaken the comfort level of a user and increase the energy efficiency ratio of the air conditioner.

Description

technical field [0001] The invention relates to the field of energy-saving operation control of frequency conversion air conditioners, in particular to a high-efficiency energy-saving operation control algorithm of frequency conversion air conditioners. Background technique [0002] At present, the control operation of frequency conversion air conditioners on the market is based on user satisfaction as the main goal. From a technical point of view, the control goal is to increase the heating and cooling capacity generated per unit time. However, such air conditioners often consume a lot of energy. The energy efficiency ratio is relatively low, and the operating cost is increased. Contents of the invention [0003] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides a high-efficiency and energy-saving operation control algorithm of an inverter air conditioner, which includes the following steps: [0004] Step 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 董晓磊曾祥学吴强强付增跃
Owner 东元总合科技(杭州)有限公司
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