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Sine DC variable frequency air conditioner controller and its control method

An air conditioner controller and DC frequency conversion technology, which is applied in the control of electromechanical brakes, AC motor control, control systems, etc., can solve the problems of low efficiency of square wave frequency conversion, and achieve the effects of stable operation, high efficiency and low noise

Active Publication Date: 2009-06-24
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A commonly used DC frequency conversion control method is the square wave frequency conversion (120-degree rectangular wave) method, but the square wave frequency conversion has the disadvantage of low efficiency

Method used

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  • Sine DC variable frequency air conditioner controller and its control method
  • Sine DC variable frequency air conditioner controller and its control method
  • Sine DC variable frequency air conditioner controller and its control method

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] First refer to figure 1 , figure 1 It is a schematic block diagram of an inverter air conditioner controller circuit according to an embodiment of the present invention. The frequency conversion air conditioner controller of the present invention is used to control cooling and heating of the air conditioning system, and the frequency conversion air conditioner controller is composed of an indoor unit controller part 100 and an outdoor unit controller part 200 connected to each other. The basic framework of the inverter air conditioner controller is: the indoor unit controller part 100 is the leading factor, the indoor unit controller part 100 judges the operating state according to the parameters set by the parameter setting part, and the indoor fan motor control part 110 adjusts the indoor fan motor. speed and wind direction, and sen...

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PUM

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Abstract

The invention provides a controller of a DC inverter air conditioner. The controller comprises a controller part 100 of an indoor unit and the controller part 200 of an outdoor unit. The controller part 100 of the indoor unit comprises an indoor unit controller 102 which comprises a single-chip microcomputer circuit, a parameter setting part 114 and an indoor detection and protection unit 106. The controller part 200 of the outdoor unit comprises an outdoor unit controller 202 which is connected with the indoor unit controller 102 through a live wire communication circuit, an outdoor detection and protection unit 204, a PFC device 214, a switch power supply 212, a drive unit 220 and an inverter 216 of a permanent magnet synchronous motor 218 for driving a compressor. The invention also provides a method for utilizing the controller of the air conditioner to control the operation of the compressor. The rapid refrigeration / heating ability of an air-conditioning system can be realized through the technical scheme, thereby having the advantages of low temperature fluctuation, energy conservation and low noise.

Description

technical field [0001] The invention relates to an air conditioner controller, in particular to a sinusoidal DC variable frequency air conditioner controller and a control method thereof. Background technique [0002] The controller of the air conditioning control system in the prior art generally adopts constant speed control, that is, the on-off control mode of the compressor with a certain speed, and the defect of the on-off mode control system capability is that the temperature fluctuates greatly and the noise is large. From the perspective of the development history of foreign air conditioners, in order to pursue comfort, high efficiency, energy saving and other performances, air conditioners have transitioned from fixed speed to frequency conversion. [0003] In the frequency conversion air conditioner, it is divided into two categories: AC and DC. Compared with AC frequency conversion, DC frequency conversion has copper loss, iron loss, eddy current loss and other los...

Claims

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Application Information

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IPC IPC(8): F24F11/00H02P6/08H02P27/08H02P21/00H02P25/024
Inventor 张有林梁博许敏米雪涛
Owner GREE ELECTRIC APPLIANCES INC
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