基于转矩面积的STATCOM稳定控制器设计

同步发电机的同步转矩分量及阻尼转矩分量是影响电力系统稳定性最直接的因素,转矩面积则将这2个转矩分量有机结合起来.文中推导出转矩面积的计算方法,再利用最大转矩面积原理对静止同步补偿器(STATCOM)稳定控制器进行优化设计,解决了STATCOM稳定控制器可能会恶化系统同步转矩这一问题.所设计的稳定控制器投入运行后,可以保证同步发电机同时拥有足够大的同步转矩和阻尼转矩,使得系统的稳定水平得以提高.最后给出一个算例进行验证,EMTDC的仿真结果证实了此方法的有效性.

STATCOM Stabilizer Design Based on Torque Area

Synchronizing torque and damping torque of a generator are two main factors influencing the stability of a power system,and they are organically combined with torque area.A novel method to calculate the torque area is proposed.In light of maximun torque area principle,the design of STATCOM stabilizer is optimized,and the problem of synchronizing torque being deteriorated by STATCOM is solved.When the stabilizer is put into place,it can maintain enough synchronizing torque and damping torque at the same time.This will significantly improve the stability of a system.The simulation results on EMTDC demonstrate the effectiveness of the proposed method.