继电保护整定计算电源运行方式优化选择方法
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摘要
为提高继电保护整定计算中电源运行方式选择的合理性与计算效率,提出一种基于电源贡献系数法的优化选择方法.提出电源贡献系数的概念和基于节点阻抗矩阵的计算方法;根据保护支路和助增支路电源贡献系数的计算结果,构建电源运行方式的优化选择方法.在新英格兰10机39节点系统中进行算例验证,结果表明:上述方法能够准确地给出各电源在最小或最大配合系数的计算中所对应的大小方式,可以避免排列组合的枚举,提高了自动整定计算的效率.
A power source contribution coefficient-based optimized method was proposed to increase the reasonability and efficiency of the power source operation mode selection in relay setting calculation. The concept of power source contribution coefficient and corresponding calculation method based on the node impedance matrix were presented. A system operation mode selection method based on the power source contribution coefficients of the protected line and infeed branches was developed. The effectiveness of the proposed method was verified through the case study of New England 39-Bus test system. Results show that by utilizing the proposed infeed coefficient calculation method, the specific operation modes of different power sources corresponding to the maximal and minimal infeed coefficient values can be determined precisely. This process does not need permutation or combination, which improves the efficiency and accuracy of the automatic relay setting calculations.
A power source contribution coefficient-based optimized method was proposed to increase the reasonability and efficiency of the power source operation mode selection in relay setting calculation. The concept of power source contribution coefficient and corresponding calculation method based on the node impedance matrix were presented. A system operation mode selection method based on the power source contribution coefficients of the protected line and infeed branches was developed. The effectiveness of the proposed method was verified through the case study of New England 39-Bus test system. Results show that by utilizing the proposed infeed coefficient calculation method, the specific operation modes of different power sources corresponding to the maximal and minimal infeed coefficient values can be determined precisely. This process does not need permutation or combination, which improves the efficiency and accuracy of the automatic relay setting calculations.
引文
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[19]CHEN Y,MEMBER S,DOMíNGUEZ-GARCíA A,et al.A sparse representation approach to online estimation of power system distribution factors[J].IEEE Transactions on Power Systems,2015,30(4):1727-1738.
[20]Power System Test Case Archive[Online].University of Washington,Department of Electrical Engineering,2013.https://www2.ee.washington.edu/research/pstca/index.html.
[2]张健康,粟小华.超高压线路后备保护整定原则探讨[J].电力系统自动化,2016,40(8):120-125.ZHANG Jian-kang,SU Xiao-hua.Discussion on setting calculation of backup protection for EHVtransmission line[J].Automation of Electric Power Systems,2016,40(8):120-125.
[3]杨雄平,段献忠,石东源.基于环网电气耦合指标的运行方式组合方法[J].电力系统自动化,2005,29(23):64-68.YANG Xiong-ping,DUAN Xian-zhong,SHI Dongyuan.Method for operation mode combination based on electric coupling of mesh network[J].Automation of Electric Power Systems,2005,29(23):64-68.
[4]程小平.配合系数与网络结构关系的研究[J].电力系统自动化,2000(9):52-55.CHENG Xiao-ping.Study on relation between network topology and cooperation coefficient[J].Automation of Electric Power Systems,2000(9):52-55.
[5]杨洋,王慧芳,时洪禹.继电保护整定计算中运行方式的选择方法[J].继电器,2006,34(20):1-4.YANG Yang,WANG Hui-fang,SHI Hong-yu.Setup and choice method for operating mode in protection setting calculation software[J].Relay,2006,34(20):1-4.
[6]张锋,李银红,段献忠.电力系统继电保护整定计算中运行方式的组合问题[J].继电器,2002,30(7):23-26.ZHANG Feng,LI Yin-hong,DUAN Xian-zhong.The research on problem of operation mode combination in relay coordination for electrical system[J].Relay,2002,30(7):23-26.
[7]周志辉,周玲,丁晓群,等.继电保护整定值计算中运行方式选择的新方法[J].电力设备,2005,6(2):55-58.ZHOU Zhi-hui,ZHOU Ling,DING Xiao-qun,et al.New method of operation mode selection for relay protection in setting and calculation[J].Electrical Equipment,2005,6(2):55-58.
[8]曹国臣,李娟,张连斌.继电保护运行整定中分支系数计算方法的研究[J].继电器,1999,27(2):5-9.CAO Guo-chen,LI Juan,ZHANG Lian-bin.Study on method to calculate branch coefficient in relay setting and coordination[J].Relay,1999,27(2):5-9.
[9]李冰,赵海鸣,刘健,等.继电保护运行整定中计算分支系数的快速方法[J].继电器,2004,32(1):21-27.LI Bing,ZHAO Hai-ming,LIU Jian,et al.Fast calculation on branch coefficient in protection relay setting and coordination[J].Relay,2004,32(1):21-27.
[10]段惠明,何志勤,李志宏,等.依托电网调控管理系统的省、地、县调保护一体化整定计算[J].电力系统自动化,2014,38(22):118-122.DUAN Hui-ming,HE Zhi-qin,LI Zhi-hong,et al.Province-prefecture-county integrated relay protection setting calculation based on operation management system[J].Automation of Electric Power Systems,2014,38(22):118-122.
[11]杨洋,吕飞鹏,廖小君.基于RUP“4+1”视图建模及设计模式的整定计算软件设计[J].电力系统自动化,2009,33(2):57-60.YANG Yang,LV Fei-peng,LIAO Xiao-jun.Relay coordination software development based on RUP4+1 view modeling and design patterns[J].Automation of Electric Power Systems,2009,33(2):57-60.
[12]王慧芳,姚勇,何奔腾,等.电网继电保护整定计算软件的实用性研究[J].电力系统自动化,2004,28(21):85-88.WANG Hui-fang,YAO Yong,HE Ben-teng,et al.Practicality study of a protection setting calculation software[J].Automation of Electric Power Systems,2004,28(21):85-88.
[13]王慧芳.继电保护整定计算软件中的若干问题分析[J].继电器,2006,34(12):14-19.WANG Hui-fang.Analysis on some problems about protection setting calculation software[J].Relay,2006,34(12):14-19.
[14]陈实,邰能灵,范春菊,等.考虑风力发电的配电网弱馈线路自适应电流保护[J].电工技术学报,2017,32(3):65-73.CHEN Shi,DAI Neng-ling,FAN Chun-ju,et al.An adaptive current protection for weak-infeed distribution lines with wind generation[J].Transactions of China Electrotechnical Society,2017,32(3):65-73.
[15]CHEN M,WANG H,SHEN S,et al.Research on a distance relay-based wide-area backup protection algorithm for transmission lines[J].IEEETransactions on Power Delivery,2017,32(1):97-105.
[16]DL/T 559-2007220 k V~750 k V电网继电保护装置运行整定规程[S].北京:中国电力出版社,2008.
[17]王锡凡,现代电力系统分析[M].北京:科学出版社,2003.
[18]FAN S,DING H,KARIYAWASAM A,et al.Parallel electromagnetic transients simulation with shared memory architecture computers[J].IEEETransactions on Power Delivery,2018,33(1):239-247.
[19]CHEN Y,MEMBER S,DOMíNGUEZ-GARCíA A,et al.A sparse representation approach to online estimation of power system distribution factors[J].IEEE Transactions on Power Systems,2015,30(4):1727-1738.
[20]Power System Test Case Archive[Online].University of Washington,Department of Electrical Engineering,2013.https://www2.ee.washington.edu/research/pstca/index.html.