低频低压切负荷的控制负效应及其机理  

Negative Control Effects of UFLS and UVLS

作　　者：任先成[1,2] 薛禹胜[2,1] Q.H. WU 丁明[4] 

机构地区：[1]东南大学电气工程学院,江苏省南京市210096 [2]国网电力科学研究院/南京南瑞集团公司,江苏省南京市210003 [3]The University of Liverpool, Liverpool L69 3GJ, UK [4]合肥工业大学光伏系统教育部工程研究中心,安徽省合肥市230009

出　　处：《电力系统自动化》2009年第10期1-5,53,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金重大项目(50595413);国家电网公司科技项目(SGKJ[2007]98&187&2009)~~

摘　　要：在有关文献研究功角稳定控制负效应的基础上,分别发现切负荷对暂态频率及电压安全的控制负效应现象。利用扩展等面积准则及暂态频率和电压安全量化理论揭示其机理,探索电力系统稳定问题的复杂性,提高了切负荷控制优化的强壮性。给出一个简单的3机9节点算例可用于重现该现象,并通过大系统中的仿真实例说明问题的现实性。After uncovering the negative effects of angle stability control in 1997, negative effects of load shedding control on transient frequency and voltage security were discovered. Based on EEAC and the quantitative analysis theory of transient frequency and voltage security, the mechanism of the newly uncovered negative effects is deeply investigated. The complexity of power system stability is explored, and the robustness of optimal load shedding control is improved. A three-machine ninebus case which is easy to reproduce is given, and also the cases of practical power systems are given.

关 键 词：低频切负荷 低压切负荷 控制的负效应 校正控制 

分 类 号：TM76[电气工程—电力系统及自动化]