电网多区域多端口参数等值方法及其应用Application of Calculation Method for Multi-region and Multi-port Parameter Equivalents in Power Grid
吕华,周建群,李志文,杜俊红,朱伟
LU Hua,ZHOU Jian-qun,LI Zhi-wen,DU Jun-hong,ZHU Wei(Lin′an Power Supply Bureau
摘要(Abstract):
根据变结构网络中拓扑结构的变化可以用添加等值支路来模拟的特点,通过添加支路模拟线路开断并对原网络节点阻抗矩阵进行修正,结合多端口戴维南等值及通过节点导纳矩阵形成等值支路的方法,提出了一种多区域多端口等值的快速求解方法,并给出算例验证和在整定计算软件中的实际应用。
Since the topological changes of variable structure network can be simulated by adding equivalent branches,the line outage is simulated and the node impedance matrix is modified combined with the method of multi-port Thevenin equivalents and forming the equivalent branches with node admittance matrix,this paper presents a fast solution of multi-region and multi-port equivalents,the example for the verification and the application in setting calculation software.
关键词(KeyWords):
电力系统;继电保护;多区域多端口;等值;计算
power system;relay protection;multi-region and multi-port;equivalents;calculation
基金项目(Foundation):
作者(Author):
吕华,周建群,李志文,杜俊红,朱伟
LU Hua,ZHOU Jian-qun,LI Zhi-wen,DU Jun-hong,ZHU Wei(Lin′an Power Supply Bureau
DOI: 10.19585/j.zjdl.2011.05.001
参考文献(References):
- LO K L,PENG L J,MACQUEEN J F.Extended Ward e-quivalent of external system for on-line security analysis[J].IEEE 2nd International Conference on Advances inPower System Control,Operation and Management,1993:54-59.
- ASCHMONEIT F C,VERSTEGE F.An External SystemEquivalent for on-line Steady-State Generator OutageSimulation[J].IEEE Transactions on Power Apparatus andSystems,2007.
- BALDWIN THOMAS L,MILI LAMINE,PHADKE ARUNG.Dynamic ward equivalents for transient stability analy-sis[J].IEEE Trans on Power Systems,1994,9(1):59-67.
- 刘峰.电力系统外部等值理论及实用化探讨[J].继电器,2007,35(15):67-71.
- 李健,李栋.电网静态等值方法的综合分析与评价[J].电气应用,2006,25(9):97-101.
- 张伯明,陈寿孙.高等电力网络分析[M].北京:清华大学出版社,1996.
- 周孝信,李汉香,吴中习.暂态稳定计算中的电网等值方法[J].中国电机工程学报,1983,3(1):12-16.
- 米麟书,刘芳宁.电力系统故障的计算机辅助分析[M].重庆:重庆大学出版社,1992.
- A S MORCHED.Multi-port frequency dependent networkequivalents for the EMTP[J].IEEE Transactions on PowerDelivery,1993,8(3):1402-1411.
- 邵玉槐,李肖伟,程晋生.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.]