转子变频调速器发生逆变颠覆的解析  

The rotor frequency conversion governor inverter reverse parsing

作　　者：林武生 

机构地区：[1]万洲电气股份有限公司

出　　处：《变频器世界》2015年第1期69-71,74,共4页The World of Inverters

摘　　要：为了解决风机、水泵类的高压电机能耗过高的问题,国内许多厂家都采用转子侧变频调速的方法,主要是将高压电机转子电压进行全桥整流,然后通过IGBT斩波升压后再通过晶闸管逆变桥,将转差功率反馈回到电网实现电能的循环利用,从而达到节能的目的。本文通过对转子变频调速器发生逆变颠覆进行解析,阐述了设计过程中避免转子变频调速器发生逆变颠覆的相关措施,可以有效解决转子变频调速器现场长期运行的稳定性。In order to solve the problem of high voltage motor energy consumption of the fan, water pump, many domestic manufacturers are using method of rotor side VVVF, mainly to the high voltage motor rotor of full bridge rectifier, and then through the IGBT chopper and then by thyristors inverter bridge, will slip power feedback back to the grid is realized using power cycle, so as to achieve the purpose of energy saving. Based on the rotor frequency conversion governor has inverter is analyzed, the measures of rotor frequency converter inverter to avoid occurrence of design process, which can effectively solve the stability of rotor frequency conversion governor long-term field operation.

关 键 词：转子变频 IGBT 整流 斩波 节能 逆变颠覆 

分 类 号：TP321[自动化与计算机技术—计算机系统结构]