发电机非同期并列案例分析

Case Analysis of Asynchronous Juxtaposition of Power Generator

发电机非同期并列是发电机运行中严重的故障之一,它产生的冲击电流会对发电机、变压器及系统造成严重伤害,机组会发生强烈的振动,有可能使待并发电机绕组变形、绝缘崩裂,甚至将绕组烧毁。对不同发电机组的三起非同期并列事故进行了剖析,并针对不同事故提出了解决方案,为其他发电机组安全稳定运行提供了借鉴经验和警示,以避免类似事故的发生。

Asynchronous juxtaposition of power generators is of serious faults in generator operation.The impact current generated by asynchronous juxtaposition causes severe damages to power generator,transformer and system and powerful vibration of the generator unit, which can cause coil deformation,insulation burst or even burn-out of the coils.The paper analyzes three asynchronous juxtaposition cases of different generators and puts forward solutions for each case,to provide reference and warning for safe and stable operation of other generators to avoid such failures.