基于解微分方程算法的微机保护在超高压电网中应用的仿真研究  

Simulation Study on Application of Microcomputer Relaying Based on Differential Equation Algorithm on UHV Network

作　　者：胡大良[1] 郁惟镛[1] 

机构地区：[1]上海交通大学电力系,上海200030

出　　处：《电力自动化设备》1997年第2期3-6,共4页Electric Power Automation Equipment

摘　　要：针对500kV线路的特点，对国内常用的采用微分方程算法的微机保护在500kV线路上的动作行为作了相应的仿真研究，并对该类保护的保护范围和应用于超高压线路时可能存在的问题作了一定的探讨。仿真结果表明：在超高压长线中应用该方案时，必须对数字滤波器进行改进，否则难以保证动作的正确性。According to the characteristics of 500 kV transmission line,simulation studyon the behavior of microcomputer protection based on differential equation algorithm hasbeen done. The paper explores the protection range and the problems which may arisewhen the protection is used on UHV transmission lines. Simulation results show thatwhen used on UHV long transmission lines,the digital filter of the protection must bemodified,otherwise the correctness of action is hardly assured.

关 键 词：微机保护 微分方程算法 超高压电网 仿真 

分 类 号：TM727[电气工程—电力系统及自动化] TM743