面向特高压交直流大受端电网的频率紧急控制特性分析  

The Frequency Emergency Control Characteristic Analysis for UHV AC/DC Large Receiving End Power Grid

作　　者：李虎成 袁宇波 卞正达 徐伟 周琦 

机构地区：[1]国网江苏省电力公司电力科学研究院,江苏南京211103 [2]东北电力大学,吉林吉林132012

出　　处：《电力工程技术》2017年第2期27-31,109,共6页Electric Power Engineering Technology

基　　金：国家电网公司科技项目(面向特高压交直流大受端电网的大规模负荷精准协调互动控制技术研究)

摘　　要：以特高压交直流混联为特征的大受端电网易发连锁故障,一旦发生直流闭锁,频率稳定问题可能随之出现。针对多直流协调控制、安控抽蓄切泵、精准负荷控制等频率紧急控制方法,开展基于实际电网典型运行方式下电网的频率紧急控制特性仿真,验证现有频率紧急控制方法的有效性。The large receiving end power grid with characteristics of UHV AC/DC mixed was prone to a cascading failure. In the event of HVDC pole blocking,frequency stability problem may occur. For multiple dc coordination control,pumped storage control,accurate load control and other frequency emergency control methods, this paper conducted frequency emergency control characteristic simulation based on the actual power grid model. The simulations verified the effectiveness of the existing frequency emergency control methods. And specific improvement measures were also put forward.

关 键 词：特高压交直流 直流闭锁 大受端电网 频率紧急控制 仿真分析 

分 类 号：TM732[电气工程—电力系统及自动化]