静止同步串联补偿器(SSSC)的非线性鲁棒H∞控制策略研究  

Nonlinear robust strategy static synchronous series compensator(SSSC) of H∞ control

作　　者：胡益[1] 王晓茹[1] 李鹏[2] 曹洪[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]东风汽车公司电力处,湖北十堰442000

出　　处：《电力系统保护与控制》2015年第7期30-36,共7页Power System Protection and Control

摘　　要：为了提高静止同步串联补偿器(SSSC)的稳定性和灵活性,同时考虑到SSSC直流侧储能电容电压的动态调节过程以及各状态量之间的相互作用,建立了含不确定性干扰参数的SSSC五阶动态仿射非线性系统数学模型。在鲁棒H∞控制方法的基础上,利用SDM反馈线性H∞方法设计出了系统的非线性鲁棒控制器。针对设计过程中的Riccati方程,利用Matlab鲁棒控制工具箱,求解得到控制器的具体控制参数。利用Matlab进行系统的建模仿真,通过与传统的非线性最优控制系统的仿真效果对比,验证了该控制器在提高电力系统稳定性上的有效性和优越性。In order to improve the stability and flexibility of the static synchronous series compensator（SSSC）, at the same time considering the energy storage capacitor voltage in DC side of SSSC dynamic adjustment process and the interaction between the state variable, this paper establishes a SSSC five order dynamic mathematical model for affine nonlinear systems with uncertain disturbance parameters. On the basis of robust H∞ control method, the method of SDM feedback linearization H∞ is used to design the nonlinear robust controller of the system. In view of the design process of Riccati equation, MATLAB robust control toolbox is used to obtain the specific control parameters of the controller. Using the MATLAB modeling and simulation of the system, with traditional nonlinear optimal control system simulation results contrast, this paper verifies the controller＇s effectiveness and superiority on improving the stability of the power system.

关 键 词：静止同步串联补偿器 不确定性干扰 SDM混合反馈线性H∞方法 RICCATI方程 

分 类 号：TM761[电气工程—电力系统及自动化]