Torque compensation methods and devices, air conditioning

By acquiring the current detection information of the single-rotor compressor and calculating the torque compensation amplitude and angle, the load torque pulsation problem of the single-rotor compressor is solved, rapid torque compensation is achieved, faults are avoided, and operational stability and anti-interference are improved.

CN117536870BActive Publication Date: 2026-05-26QINGDAO HAIER SMART TECH R & D CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-01
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Single-rotor compressors experience load torque pulsation during operation, leading to frequent operational failures such as high noise, overload shutdown, overcurrent shutdown, and speed control failure.

Method used

By acquiring the current detection information of the single-rotor compressor, the target operating parameters and torque compensation strategy are determined. The torque compensation amplitude and angle are calculated using the current processing unit and the proportional-integral unit, so as to achieve fast and timely torque compensation.

Benefits of technology

It effectively avoids faults such as overload shutdown, overcurrent shutdown, and speed runaway of single-rotor compressors, alleviates vibration and noise problems, and improves operational stability and anti-interference ability.

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Abstract

This application relates to the field of compressor technology and discloses a torque compensation method applied to a single-rotor compressor. The method includes acquiring current detection information of the single-rotor compressor during operation; determining target operating parameters of the single-rotor compressor based on received operating control commands; determining a torque compensation strategy for the single-rotor compressor based on the current detection information and the target operating parameters; and performing torque compensation on the single-rotor compressor according to the torque compensation strategy. This application, by acquiring current detection information of the single-rotor compressor during operation and controlling the single-rotor compressor to perform torque compensation according to the determined torque compensation strategy based on the current detection information and the target operating parameters, effectively avoids operating faults such as overload shutdown, overcurrent shutdown, and speed runaway during the operation of the single-rotor compressor, while also mitigating vibration and noise problems during operation. This application also discloses a torque compensation device and an air conditioner.
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Citation Information

Patent Citations

  • Variable capacity compressor operation mode determination method and device, variable capacity compressor, and air conditioner

    US20210340977A1

  • Method and device for automatically compensating for moment of compressor, compressor, and control method for same

    WO2015096090A1