电力系统保护与控制2017，Vol.45Issue(12)：22-28,7.DOI:10.7667/PSPC160908
解列后局部电网功角首摆失稳问题研究
A study on the first swing of angle instability in the local power network after splitting
摘要
Abstract
Based on the theory of extended equal area criterion (EEAC),the first swing of angle instability in the local power network after splitting is studied in this paper.A 3-region interconnected power system is constructed,and then,the equivalent model of the local power network after splitting is built.With the respect to the non-fault and fault-driven splitting,the change characteristics,that exist in the power-angle curve of one machine-infinity bus(OMIB) system of the local power network before and after splitting,is analyzed.Based on the computation of stability margin,the main influence factors of the first swing of angle instability are studied,according to Relative Kinetic Energy of OMIB when splitting,the acceleration area and the maximum deceleration area of the first swing.FASTEST based simulation results of the equivalent small power grid and the actual large power grid are given to show the conclusion.关键词
解列/功角稳定/首摆失稳/扩展等面积准则(EEAC)Key words
splitting/angle stability/first swing of angle instability/extended equal area criterion (EEAC)引用本文复制引用
李碧君,刘福锁,吴雪莲,李威..解列后局部电网功角首摆失稳问题研究[J].电力系统保护与控制,2017,45(12):22-28,7.基金项目
This work is supported by Science and Technology Project of State Grid Corporation of China "Multi-stability Morphology Interactive influence Analysis and Control Technique Research under Large Grid Serious Fault".国家电网公司科技项目“大电网严重故障下多稳定形态交互影响分析及控制技术研究” （）
