摘要
针对系统产生谐振电压的机理进行的理论分析，对防止谐振过电压的措施进行了综合比较，具有很强的使用价值。
The paper presents a theoretical analysis of the mechanism that allows resonant voltage generation with the system and offers a comprehensive comparison of resonant voltage-preventing measures and the sysem shows a greater practical value.
