摘要
±660 kV银东直流输电工程投产后,山东电网成为交直流互联的受端电网,结构变化较大。直流闭锁故障发生后,由于潮流转移和功率缺额,会对山东电网甚至华北电网产生较大的系统冲击,影响电网的安全稳定运行。通过对实际发生的银东直流闭锁故障案例进行研究,着重分析其对山东电网的影响,总结交直流互联电网的运行经验,针对受端电网提出直流闭锁事故处理的基本思路。
Since the ±660 kV Yindong HVDC transmission project was taken into operation, the structure of Shandong power grid became a receiving-end power grid in AC/DC interconnect power system changed a lot. DC block has strong impact on the safety and stability of Shandong power grid even North China power grid because of flow transfer and power vacancy. This paper analyzed the impact of DC block on Shandong power grid, summarized the operating experience of AC/DC connected power system and put forward the basic approach dealing with DC block fault on receiving-end power grid based on the actual case of Yindong HVDC fault.
出处
《山东电力技术》
2013年第4期1-4,共4页
Shandong Electric Power
关键词
直流闭锁
安全
潮流转移
事故处理
DC block
safety
flow transfer
dealing with fault
