chopper cascade speed control system 斩波串级调速系统
The paper introduced the application of internal feedback cascade speed control system on boiler fans in Yancheng Plant.
分析了异步电动机串级调速的工作原理与性能特点，介绍了内反馈串级调速电机及其装置的系统结构。
A cascade speed control system mainly consists of a wound asynchronous motor, a three-phase rectifier and a three-phase thyristor (?) inverter.
串级调速系统的主要组成部分是线绕式异步电动机，三相桥式整流器和三相可控硅逆变器。
Internal feedback cascade speed control system is proved to have a good cost performance and can be used on large and medium type fans extensively.
内反馈串级调速系统是一种具有优良的性能价格比的调速节能设备，适合于电厂的大中型风机调速节能运行。
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