基于微分几何方法的静止同步串联补偿器非线性控制  

Study of Nonlinear Control of SSSC Based on Differential Geometry Approach

作　　者：赵洋[1] 肖湘宁[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,北京102206

出　　处：《电工技术学报》2008年第4期132-136,共5页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(50577024)

摘　　要：提出了一种改进的坐标变换,使得微分几何方法可直接应用于求解静止同步串联补偿器(SSSC)非线性控制策略。此外,改进的坐标变换同样也可以简化实现精确线性化的过程。结合线性最优控制理论,得到了SSSC非线性最优控制策略,并将其应用于提高系统阻尼。最终,应用实时数字仿真器(RTDS)搭建了包含SSSC的单机无穷大系统电磁暂态模型,仿真结果证实本文所提出的SSSC非线性最优控制策略对于功率振荡具有明显的抑制效果。An improved coordinate transform is proposed and then the differential geometry approach can be directly used to obtain the nonlinear control strategy of SSSC. The proposed coordinate transform can also simplify the course of exact linearization. With the linear optimal control theory, this paper obtains the nonlinear optimal control strategy which is used to improve the power oscillation damping. Finally, the electromagnetic transient model of single machine infinite bus power system including SSSC is established by real time digital simulator （RTDS）.The simulation results can show that it is effective for nonlinear optimal control strategy of SSSC to restrain the power oscillation.

关 键 词：静止同步串联补偿器 微分几何方法 坐标变换 RTDS 

分 类 号：TM761[电气工程—电力系统及自动化]