Control method and system of inverter compressor and air conditioner

A frequency conversion compressor and control method technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problems of compressor power not meeting demand, increased loss value, accelerated compressor aging, etc. Achieve the effects of avoiding accelerated aging or even damage, reducing energy loss, and avoiding excessive temperature

Inactive Publication Date: 2018-09-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

[0002] Inverter air conditioning system is mainly composed of rectifier, electrolytic capacitor, power module and control module, in which the control module detects the voltage and current signal of the compressor, determines the control voltage through the vector control algorithm, and determines the modulation signal and The power module drives the variable frequency compressor to work stably at the predetermined frequency. The power module is turned on or off to cause energy loss, and the los

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  • Control method and system of inverter compressor and air conditioner
  • Control method and system of inverter compressor and air conditioner
  • Control method and system of inverter compressor and air conditioner

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[0070] In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

[0071] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited to the specific details disclosed below. Limitations of the embodiment.

[0072] The embodiment of the first aspect of the present invention provides a control method of an inverter compressor, such as figure 1 As shown, a schematic flowchart of a method for controlling an inv...

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Abstract

The invention provides a control method of an inverter compressor, a control system of the inverter compressor, an air conditioner, computer equipment and a computer readable storage medium. The method comprises the following steps: acquiring output current of the inverter compressor in real time; calculating the time of duration of the output current which is continuously greater than preset current; and when the time of duration is greater than a time threshold value, controlling the inverter compressor to stop or reducing carrier frequency. By controlling the inverter compressor to stop orreducing the carrier frequency, energy loss of a power switch is reduced when the inverter compressor is in an overload situation, the circumstances that the temperature of the power switch is over high and thus the power switch is damaged are avoided, and meanwhile, the circumstance that ageing of the inverter compressor is accelerated and the inverter compressor is even damaged due to over-longoverload running time is avoided.

Description

technical field [0001] The invention relates to a control method of a variable frequency compressor, a control system of a variable frequency compressor, a control system of a variable frequency compressor, an air conditioner, a computer device and a computer readable storage medium. Background technique [0002] Inverter air conditioning system is mainly composed of rectifier, electrolytic capacitor, power module and control module, in which the control module detects the voltage and current signal of the compressor, determines the control voltage through the vector control algorithm, and determines the modulation signal and The power module drives the variable frequency compressor to work stably at a predetermined frequency, and the power module is turned on or off to cause energy loss, and the loss value increases with the increase of the carrier frequency. In addition, when the load of the compressor is heavy, the output current of the compressor will be greater than the...

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Application Information

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IPC IPC(8): F24F11/86F24F11/64F24F11/88F24F11/61
CPCF24F11/61F24F11/64F24F11/86F24F11/88
Inventor 乔飞
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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