静止无功发生器的H2／H∞保性能控制器设计  

Design of H_2/H_∞ Guaranteed Cost Controller for STATCOM

作　　者：孙运全[1] 孙玉坤[1] 茅靖峰[2] 杨建宁[1] 

机构地区：[1]江苏大学电气工程学院,江苏镇江212913 [2]南通大学电气工程学院,江苏南通226007

出　　处：《中国农村水利水电》2008年第4期126-129,共4页China Rural Water and Hydropower

基　　金：江苏省高校自然基金(06KJB470015);江苏省教育厅博士创新项目(1223000017)。

摘　　要：在电力系统中装设STATCOM(无功补偿装置)可以改善系统的暂态稳定性、动态性能,维持系统电压,以及提高传输能力。为了更好的利用该装置,利用H2/H∞保性能控制理论和直接反馈线性化,在单机-无穷大系统中建立了含有不确定因数的STATCOM数学模型。采用LMI方法,得出H2/H∞保性能控制规律。仿真表明,这种控制方法同时具有鲁棒性和最优性能,降低了单纯H∞控制方法的保守性,提高了电力系统的稳定性,并能满足电压精度的要求。Static Synchronous Compensator（STATCOM） is expected to be applied to transmission systems to achieve many benefits such as improving the transient stability and dynamic performance of power systems, maintaining voltage of power systems, enhancing the power transfer capability of long interconnected transmission lines. To ensure the full utilization of the device, a mathemati- cal model with uncertain factors for STATCOM is established based on the robust H2/H∞ and direct feedback linearization in single -machine infinite-bus. The H2/H∞ control performance is obtained by LMI. The simlink shows the control method possesses good adaptability and robustness and so it can improve the stability of the power system, reduce the conservativeness only in H∞ method. The requirement of voltage regulation accuracy can be satisfied.

关 键 词：静止无功发生器 鲁棒 保性能控制 直接反馈线性化 

分 类 号：TM571[电气工程—电器]