摘要
德宝直流系统低功率无通信状态下,当逆变站Z闭锁时整个直流系统会出现短时过电压。为防止系统过电压的出现,在直流控制系统中增加了整流侧低电流闭锁判据。对德宝直流系统低功率无通信状态下逆变站Z闭锁时的动作情况进行分析,并介绍了该功能在德宝直流工程中的应用情况,证明了该研究结果的正确性。
Because of the low power Baoj-Deyang HVDC system without communication, overvoltage occurs in the whole HVDC system when blocking exists in inverter station Z. The criteria for lower current blocking at the HVDC control system rectifier side is used to avoid the overvoltage in the HVDC system. The paper analyzes the action of the inverter station Z blocking under the low power Baoj-Deyang HVDC system without communication, introduces the application of the criteria for lower current blocking at the rectifier side in Baoj-Deyang HVDC system, and verifies the correctness of the criteria.
出处
《陕西电力》
2015年第10期76-78,85,共4页
Shanxi Electric Power
关键词
德宝直流工程
直流过压保护
整流侧低电流闭锁判据
Baoji-Deyang HVDC project
dc overvoltage protection
lower current blocking criteria at rectifier side
