摘要
针对可控串联补偿器TCSC(ThyristorControlledSeriesCompensator)的动态过程和发电机阻尼系数不能精确测量的情况,将含有TCSC的单机无穷大系统用一个三阶微分方程表示,用自适应逆推方法设计了TCSC稳定控制器。在系统模型中考虑了TCSC的动态过程,同时保留了系统的非线性特性,运用自适应增益控制律进行参数的实时估计。仿真结果表明设计的TCSC稳定控制器能快速抑制振荡,保证单机无穷大系统的暂态稳定。
A single -machine infinite -bus system with TCSC(Thyristor Controlled Series Compensator),in which the dynamic process of TCSC and damping coefficient of generator are uncertain,is represented by a three-order differential equation. A TCSC stability controller is designed based on adaptive backstepping method. The dynamic process of TCSC is considered in the system model and the nonlinear characteristic is reserved. An adaptive gain control law is applied to real-time para-meter estimation. Simulative results show that the proposed controller suppresses oscillation rapidly and ensures the transient stability of single-machine infinite-bus system. This project is supported by Natural Science Research Foundation of Jiangsu Province Higher Education(03KJB470035) and (04KJD470085).
出处
《电力自动化设备》
EI
CSCD
北大核心
2005年第4期59-61,共3页
Electric Power Automation Equipment
基金
江苏省高校自然科学研究项目(03KJB470035)和(04KJD470085)
关键词
TCSC
暂态稳定
自适应逆推方法
不确定参数
TCSC
transient stability
adaptive backstepping method
uncertain parameter
