发电机功率变送器暂态响应特性试验分析

Experimental Analysis on Transient Response Characteristic of Generator Power Transmitter

为了研究机组控制用功率变送器暂态响应特性,采用RTDS搭建500 kV双机双线仿真系统模型来模拟不同类型故障以及对实际故障录波进行回放的方式,对4种类型功率变送器的暂态响应特性进行了试验分析,结果表明:数字式功率变送器暂态响应特性优于模拟式功率变送器,快速响应的数字式功率变送器在故障期间能有效跟踪实际值,模拟式功率变送器存在幅值误差大、功率反向等问题。

In order to study transient response characteristic of the power transmitter for generator control, this paper makes experimental analysis on transient response characteristics of four types of power transmitters by establishing a 500 kV double generator and double line simulation system model on RTDS to simulate different faults and replaying actual fault recording. The results indicate that transient response characteristic of the digital power transmitter is superior to that of the analog power transmitter, and the former having fast response characteristic can effective trace actual value during fault period while the latter has some problems such as large amplitude error, power reverse, and so on.