发电机励磁系统远程监测诊断应用研究

Application research on remote monitoring and diagnosis of excitation system for generator

电力系统中大容量高参数机组的普遍应用,对励磁系统的可靠性提出了更高的要求,对励磁系统远程监测诊断应用进行研究很有必要。根据励磁系统状态监测的关键点,对发电机状态监测与评估功能模块、励磁系统异常和故障类型的统计评价功能模块、调节器比例-积分-微分(PID)性能监测评价功能模块、调节器电力系统稳定器(PSS)抑制低频振荡能力的监测评价功能模块、励磁调节器内部限制与保护定值的监测评价功能模块5个模块进行了研究,全面覆盖了励磁系统各个方面的内容,保证了发电机励磁系统安全、稳定运行,并为生产管理决策和设备状态检修提供了技术支撑。

The general application of high capacity and high parameterized unit in the electrical power system brings up higher demands on the reliability of excitation system,thus it is very important to study on the application of remote monitoring and diagnosis of excitation system.Five modules have been studied according to key point of excitation system state monitoring:state monitoring and assess module,evaluation of excitation system exceptions and statistics of fault type module,evaluation of state monitoring of PID adjuster module,evaluation of state monitoring of PSS adjuster restraining low-frequency oscillation module,evaluation of state monitoring of excitation regulator internal restriction and fixed value protection module.These studies have covered every aspect of excitation system and provided technical support to safety running and equipment maintenance.