发电机组同期合闸失败原因分析及解决措施

发电机依靠同期装置实现快速并网,并网过程中不能对电网造成冲击。发电机组同期合闸失败,不能并网发电,可能造成电力系统出现负荷缺口,影响系统安全稳定运行。该文介绍同期装置的原理,举例分析同期失败的常见原因及解决措施,主要有并列条件不满足、同期装置及回路故障。通过监控系统数据分析,就可以找出同期失败的原因,归结起来就是系统原因和设备原因,提出有针对性的解决办法,提高同期合闸成功率。

The generator relies on the synchronization device to achieve rapid grid connection,which can not impact the power grid in the process of grid connection.The generator sets fail to close at the same time and cannot be connected to the grid,which may cause a load gap in the power system and affect the safe and stable operation of the system.This paper introduces the principle of the synchronization device,and gives examples to analyze the common causes and solving measures of the synchronization failure,which mainly include the unsatisfied juxtaposition condition,the synchronization device and the circuit fault.Through the data analysis of the monitoring system,we can find out the reasons for the failure in the same period,which boils down to the reasons of the system and equipment,and put forward targeted solutions to improve the success rate of closing in the same period.