基于晶闸管控制电抗器的FACTS动态相量模型

Dynamic Phasor Models of TCR Based FACTS

利用电力系统变量的时变傅里叶系数得到晶闸管控制电抗器(thyristor controlled reactor,TCR)的动态相量模型,该模型忽略了对TCR动态特性影响较小的谐波分量,并通过对TCR时域模型的平均运算获得动态相量状态空间模型。应用该模型对含柔性交流输电装置的电力系统进行仿真,能在保证一定精度的同时获得较快的速度。基于TCR的动态相量模型提出了静止无功补偿器和晶闸管控制串联电容器的动态相量模型。通过与商业软件DCG/EMTP在简单测试系统上的全时域仿真结果相比较,证明了该动态相量模型的有效性和正确性。

By use of time-varying Fourier coefficient series of power system variables, new dynamic phasor models of thyristor-controlled reactor （TCR） are developed. In this model the higher order harmonic components that have less impacts on dynamic characteristic of TCR are neglected, and through the average operation of time-domain model of TCR, a dynamic phasor state-space model of TCR is derived. Applying these models to the simulation of power system containing FACTS devices, high speed and accuracy can be achieved. Based on the dynamic phasor models of TCR, the dynamic phasor model for static VAR compensator （SVC） and that for thyristor controlled series capacitor （TCSC） are put forward. Comparison full time-domain simulation results of simple testing system by the developed TCR models and that by commercial software DCG/EMTP, the effectiveness and correctness of the developed dynamic phasor models are proved.