含静止无功补偿器的电力系统混合仿真新算法研究  

A New Hybrid Simulation Algorithm for Power System with Static VAR Compensator

作　　者：王立伟[1] 房大中[1] 钟德成[2] 

机构地区：[1]天津大学自动化学院,天津300072 [2]香港理工大学电机系

出　　处：《电力系统及其自动化学报》2004年第1期74-77,82,共5页Proceedings of the CSU-EPSA

摘　　要：传统的机电暂态仿真对 HVDC和其它 FACTS电力电子装置采用准稳态模型 ,因而不能仿真它们的瞬变电压、电流特性。而电磁暂态仿真程序 (例如 EMTP)受计算规模的限制 ,一般要对研究对象的外部电力系统进行等值化简 ,因此不能反映系统机电暂态过程对电磁暂态过程的影响。本文介绍的混合仿真算法为弥补上述两种方法的不足 ,对电力网络采用准稳态模型 ,而对待研究的电力电子装置 (例如 SVC)使用电磁暂态模型 ,两种仿真的结合使用了本文发展的考虑系统频率偏移影响的接口技术。本文介绍的混合仿真算法为研究HVDC和In power system transient stability simulation,the rapidly transient responses of HVDC and FACTS devices both in voltages and currents can not be simulated in detail,since the quasi steady state models for these devices are usually adopted.On the other hand, because electromagnetic transient simulation approach has the disadvantage of high computational burden and relatively low efficiency,a large power system is usually represented by a reduced equivalent system model when performed simulation using commercial EMTP software.The hybrid simulation algorithm presented in this paper models the selected power electronic devices such as SVC with the EMTP like electromagnetic transient approach and simulates the outside AC power system with traditional transient simulation program.The effect of frequency deviation on the electromagnetic transient simulation during and after a disturbance is considered.The hybrid algorithm proposed in this paper can provide a useful tool for studying dynamic performance of HVDC and FACTS devices.

关 键 词：电力系统 静止无功补偿器 混合仿真算法 电网 电能质量 电磁暂态仿真程序 

分 类 号：TM714.3[电气工程—电力系统及自动化] TM743