李智;杨洪耕;

• 1:四川大学电气信息学院

摘要(Abstract)：

地区电网的电源是连接上下级电网的变电站,将REI等值用于地区电网无功优化,以解决常规模型中无法反映边界母线(即连接上下级电网的母线)间电压无功特性(边界母线电压幅值受自身以及其他边界母线下级电网无功变化的影响情况)等问题。推导了能有效反映电压无功特性的等值电抗与边界母线电压无功灵敏度矩阵的关系,分析了等值电抗的变化特性以及潮流状态在等值前后的一致性,提出首先根据等值前后电压无功特性保持一致的原则利用本地数据求取等值参数,然后在优化计算中根据优化前后电压偏差的不变性对优化电压进行修正。通过对四川某地区电网的仿真计算,验证了该方法可以有效反映边界母线间的电压无功特性,使优化潮流计算电压更加准确。

关键词(KeyWords)： REI等值;无功优化;电压无功特性;潮流一致性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李智;杨洪耕;

Email:

DOI: 10.13335/j.1000-3673.pst.2012.09.034

参考文献(References)：

• [1]郭庆来,吴越,张伯明,等.地区电网无功优化实时控制系统的研究与开发[J].电力系统自动化,2002,26(13):66-69.Guo Qinglai,Wu Yue,Zhang Boming,et al.Research anddevelopment of real-time control system for reactive poweroptimization[J].Automation of Electric Power Systems,2002,26(13):66-69(in Chinese).
• [2]何佳,吴耀武,娄素华,等.基于微粒群优化算法的电力系统动态无功优化[J].电网技术,2007,31(2):47-51.He Jia,Wu Yaowu,Lou Suhua,et al.Dynamic reactive poweroptimization based on particle swarm optimization algorithm[J].Power System Technology,2007,31(2):47-51(in Chinese).
• [3]张海波,张伯明,王志南,等.地区电网外网等值自动生成系统的开发与应用[J].电网技术,2005,29(24):10-15.Zhang Haibo,Zhang Boming,Wang Zhinan,et al.Development andapplication of real-time external network equivalent system forsub-transmission networks[J].Power System Technology,2005,29(24):10-15(in Chinese).
• [4]温伯坚,张海波,张伯明,等.广东省地区电网外网等值自动生成系统设计[J].电力系统自动化,2004,28(20):77-79.Wen Bojian,Zhang Haibo,Zhang Boming,et al.Design of a real-timeexternal network auto-equivalence system of sub-transmissionnetworks in Guangdong[J].Automation of Electric Power Systems,2004,28(20):77-79(in Chinese).
• [5]刘小波,丁晓群,龙启峰,等.基于Ward等值的二级电压控制研究[J].电网技术,2005,29(12):53-56,71.Liu Xiaobo,Ding Xiaoqun,Long Qifeng,et al.Study on secondaryvoltage control based on Ward equivalent[J].Power SystemTechnology,2005,29(12):53-56,71(in Chinese).
• [6]颜伟,张海兵,田甜,等.考虑虚拟电源电压特性的区域电网动态无功优化[J].电力系统自动化,2009,33(11):29-32.Yan Wei,Zhang Haibing,Tian Tian,et al.Dynamic reactive poweroptimization considering voltage characteristics of dummy powersource in regional power grid[J].Automation of Electric PowerSystems,2009,33(11):29-32(in Chinese).
• [7]Li Zhi,Yang Honggeng.Application of REI equivalent in reactivepower optimization control in regional power grid[C]//Proceedings ofPower and Energy Engineering Conference.Wuhan:IEEE,2011:1-4.
• [8]张力平.考虑外部网络的在线电网安全分析[J].电网技术,1988,12(2):30-36.Zhang Liping.Online security analysis of the power grid consideringthe external network[J].Power System Technology,1988,12(2):30-36(in Chinese).
• [9]吴国瑜,陈顺德,徐竟成,等.浙江电网调度员培训仿真装置研制浅述[J].电网技术,1995,19(11):26-29.Wu Guoyu,Chen Shunde,Xu Jingcheng,et al.A preliminaryintroduction to the research of Zhejiang provincial dispatcher trainingsimulation device[J].Power System Technology,1995,19(11):26-29(in Chinese).
• [10]魏文辉,袁启海,薛巍,等.类型扩展潮流计算的研究及应用[J].电网技术,2003,27(11):25-29.Wei Wenhui,Yuan Qihai,Xue Wei,et al.Research and applicationof extended-type load flow calculation[J].Power System Technology,2003,27(11):25-29(in Chinese).
• [11]孙奇珍,蔡泽祥,朱林,等.互联电网的多端等值方法及其误差分析[J].电网技术,2008,32(23):67-71.Sun Qizhen,Cai Zexiang,Zhu Lin,et al.Multi-terminal equivalencemethod of interconnected power system and improvement based on itserror analysis[J].Power System Technology,2008,32(23):67-71(inChinese).
• [12]Dimo P.Nodal analysis of power systems[M].England:AbacusPress,1975:159-163.
• [13]Tinney W F,Powell W L.The REI approach to power networkequivalents[C]//Proceedings of the PICA Conference.Toronto:IEEE,1977:314-320.
• [14]Mihai G,Ovidiu I,Gilda G A,et al.REI equivalent design for electricpower systems with genetic algorithms[J].WSEAS Transactions onCircuits&Systems,2008,7(10):911-921.
• [15]邵玉槐,李肖伟,程晋生,等.REI等值法用于多节点配电系统短路电流计算的研究[J].中国电机工程学报,2000,20(4):64-67,88.Shao Yuhuai,Li Xiaowei,Cheng Jinsheng,et al.Studies on applyingREI method to computing short-circuit fault current of distributionsystem of many nodes[J].Proceedings of the CSEE,2000,20(4):64-67,88(in Chinese).