大型同步电机变频起动初期反转现象的原因分析及解决方法  

Cause Analysis and Solving Methods for the Reverse Rotating of Large Synchronous Machine at the Beginning of Variable Frequency Start

作　　者：邱建生 

机构地区：[1]中国空分设备公司自动化工程部,浙江杭州310004

出　　处：《大电机技术》2004年第6期13-14,共2页Large Electric Machine and Hydraulic Turbine

摘　　要：采用变频起动的大型同步电机在起动初期可能出现反转现象 ,这对有些被驱动设备是不允许的 ,经分析这种反转现象是由升压变压器的剩磁引起的 ,通过消磁的方法解决了这一问题。Reverse rotating may occur at the beginning when a large synchronous electric machine is started with variable frequency. This is not allowed for some of the driven equipment. Analysis shows that this phenomenon is caused by the residual flux in step-up transformer. The problem is solved by demagnetizing.

关 键 词：大型同步电机 变频起动 反转现象 变频器 

分 类 号：TM341[电气工程—电机]