Air source heat pump unit control method and device, storage medium and electronic equipment

By predicting overcurrent risks and implementing safety control actions under low voltage conditions, and coordinating the adjustment of compressor frequency and auxiliary electronic expansion valve opening, the problem of frequent shutdowns of air source heat pump units due to enthalpy increase under low voltage conditions has been solved, thus improving operational continuity and reliability.

CN122408335APending Publication Date: 2026-07-17GUANGDONG TCL INTELLIGENT HEATING & VENTILATING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When an air source heat pump unit operates under low voltage conditions, the opening of the enthalpy-increasing auxiliary electronic expansion valve causes a sharp increase in the compressor phase current. Traditional overcurrent protection logic cannot intervene in time, resulting in frequent abnormal shutdowns and affecting the continuity and reliability of operation.

Method used

By predicting overcurrent risk under low voltage conditions, the predicted overcurrent risk is determined, and preset safety control actions are executed. The compressor operating frequency and the opening of the auxiliary electronic expansion valve are adjusted in a coordinated manner to increase enthalpy and avoid overcurrent risk.

Benefits of technology

It effectively suppresses the risk of overcurrent during enthalpy increase under low voltage conditions, avoids frequent abnormal shutdowns, improves the operational continuity and reliability of air source heat pump units, and enhances the user experience.

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Abstract

The application discloses an air source heat pump unit control method and device, a storage medium and an electronic device, relates to the technical field of heat pumps, and the method comprises the following steps: when it is determined that the enthalpy needs to be started in a low-voltage working condition, overcurrent risk prediction is performed according to unit working condition parameters, and a predicted overcurrent risk is obtained; a preset safety control action corresponding to the predicted overcurrent risk is determined; and the preset safety control action is executed to start the enthalpy by adjusting the operating frequency of the compressor and the opening degree of the auxiliary electronic expansion valve. The application can improve the operation continuity and reliability of the air source heat pump unit and improve the user experience.
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