变频空调输入电路串联谐振防治研究

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摘要针对变频空调在畸变电源环境中出现的异常过电压保护导致系统锁停、甚至关键器件受损的现象,对输入端电路进行串联谐振机理分析和振荡过程仿真计算,提出更改电路拓扑、更换电容、消耗谐振能量3种串联谐振抑制方法,分别适用于彻底根治、现场整改、售后服务3种不同场景。通过仿真和整机现场应用,验证了所提方法的有效性。

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	崔永伟
	李光明
	杜冲
	关彦彬

关键词 ：变频空调, 电能质量, 滤波电路, 串联谐振, 谐振频率, 过电压保护

Abstract：In response to the abnormal overvoltage protection in distorted power environments which leads to lockout of inverter air-conditioners and even damage to key components due to overvoltage, the series resonance mechanism analysis and oscillation process simulation for the input circuit are carried out. Three series resonance suppression methods, namely changing the circuit topology, replacing capacitors, and consuming resonant energy, are proposed. They are respectively applicable to three different scenarios: thorough cure, field rectification and after-sales service. The effectiveness of the proposed methods is verified through simulation and field application.

Key words： inverter air-conditioner power quality filter circuit series resonance resonant frequency overvoltage protection

收稿日期: 2025-03-27

作者简介: 崔永伟（1983—）,男,山东青岛人,学士,工程师,研究方向为变频空调电控的设计与开发。

引用本文:

崔永伟, 李光明, 杜冲, 关彦彬. 变频空调输入电路串联谐振防治研究[J]. 电气技术, 2025, 26(10): 49-54. CUI Yongwei, LI Guangming, DU Chong, GUAN Yanbin. Research on series resonance of input circuit in inverter air-conditioners and its prevention and control. Electrical Engineering, 2025, 26(10): 49-54.

链接本文:

https://dqjs.cesmedia.cn/CN/Y2025/V26/I10/49