Discussion on the Experience in Application of Frequency Converters

Zou Jun（Guangzhou Design Institute，Guangzhou 510620，China）

Abstract The operating principles and energy-saving principles of the frequency converters，as well as the usage occasions and noteworthy problems of frequency converters are introduced. The applications between frequency converters and soft starters are compared.

Key words　Frequency converter Energy - saving Frequency Load Harmonic

摘　要　介绍了变频器的工作原理、节能原理、使用场合，以及使用中应注意的问题，比较了变频器与软启动器的使用。

关键词　变频器 节能 频率 负载 谐波