摘要
在RTDS实时仿真系统上模拟再现了实际直流系统曾发生的电压测量偏差引起的直流闭锁故障,证实了直流现场电压异常波动问题为电压测量偏差所致。同时在进行大量仿真的基础上,分析总结了直流系统在不同负荷水平下发生直流电压不同类型测量偏差时的运行规律。
The block fault which was induced by DC voltage measurement error in actual DC system is simulated on the RTDS （real-time digital simulator） simulation system. The result verifies that the DC voltage fluctuation problems in the DC system are caused by voltage measurement errors. What is more, based on a lot of simulations, this paper analyzes and summarizes the operation of DC systems under different DC power load levels and different kinds of DC voltage measurement errors.
关键词
RTDS仿真系统
电压测量偏差
电压波动
直流输电
RTDS simulation system
voltage measurementerror
voltage fluctuation
DC transmission
