电磁–机电暂态混合仿真中机电侧故障的仿真方法  

Simulation Method of Faults on Electromechanical Side in Electromagnetic and Electromechanical Hybrid Simulation

作　　者：张怡[1] 吴文传[1] 张伯明[1] Aniruddha M.Gole 

机构地区：[1]电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京市海淀区100084 [2]曼尼托巴大学电气与计算机工程系

出　　处：《中国电机工程学报》2012年第19期81-88,189,共8页Proceedings of the CSEE

基　　金：国家863高技术基金项目(2011AA05A118);国家杰出青年科学基金(51025725);新世纪优秀人才支持计划项目(NCET-11-0281)~~

摘　　要：基于频率相关网络等值(frequency dependent networkequivalent,FDNE)的电磁–机电暂态解耦混合仿真系统一般不能处理机电暂态侧网络的故障。首先提出一种伴随仿真方法来初始化多个FDNE的状态,以实现FDNE的平稳切换。另外,通过大量仿真研究提出一种临界电气距离指标,用于快速鉴别机电暂态侧故障时是否需要在仿真中修改FDNE。最后,提出一种基于上述临界电气距离指标的FDNE切换策略以减小总体计算量。仿真结果表明基于临界电气距离指标的FDNE切换策略能够保证混合仿真的精度和效率。The frequency dependent network equivalent （FDNE） based electromagnetic and electromechanical hybrid simulation system can not simulate the faults on the electromechanical network side. Firstly, a hot standby method was proposed to initialize the state variables of the new FDNE to decrease the spurious transient during the swap. Secondly, an electrical distance index was proposed to quickly determine the necessity of the swap of the FDNE. Thirdly, an electrical distance index based FDNE-swapping strategy was proposed to save computational burden. Several systems are used as the examples to demonstrate the accuracy and efficiency of the proposed electrical distance index based FDNE-swapping method.

关 键 词：临界电气距离指标 电磁暂态 机电暂态 故障后 的频率相关网络等值 初始化 

分 类 号：TM74[电气工程—电力系统及自动化]