基于广域测量的滑模TCSC控制器设计

广域测量系统为电力系统实现网络化控制提供了新的解决方案。文章对基于广域测量信号的可控串补(thyristor controlled series compensator，TCSC)系统进行了分析，建立了基于广域测量的TCSC系统模型。通过引入附加状态变量，将含有时滞的时滞系统转换为不含时滞的离散控制系统，并采用离散滑模控制的方法设计了状态反馈控制器，对克服控制器中的抖振问题提出了有效的解决方法。为验证所提出方法的有效性，对单机无穷大系统进行了仿真计算，表明该方法可以有效保持系统的稳定性。

Design of Wide-Area Measurement Based Sliding-Mode TCSC Controller

Wide-area measurement system (WAMS) offers a new solution for networking control of power system. The authors analyze the wide-area measurement signal based thyristor controlled series compensator (TCSC) system, establish a TCSC system model based on wide-area measurement. By means of leading in additional state variables the time-delay system is changed into discrete control system that does not contain time-delay, and by use of discrete sliding-mode control method a state feedback controller is designed. An effective method to settle the chattering in sliding-mode controller is proposed. To verify the effectiveness of the proposed method, the simulation with single machine infinite system is conducted. Simulation results show that with the proposed method the stability of power system can be effectively retained.