基于广域信号的多目标鲁棒HVDC附加控制器设计  

Design of Multi-Objective Robust HVDC Supplementary Controller Based on Global Signal

作　　者：常勇[1] 徐政[1] 王超[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《电力系统及其自动化学报》2007年第6期1-6,共6页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(50277034)

摘　　要：为了利用HVDC抑制并联交流系统的低频振荡,设计了广域多目标鲁棒控制器。选择电力系统广域同步信号作为反馈控制的输入,考虑到电力系统的强非线性和各种扰动,采用H∞鲁棒控制设计方法抑制不确定因素对控制效果的不良作用,并用极点配置方法保证控制器对区域间振荡模式提供足够的阻尼。对于这样一个多目标鲁棒控制问题采用线性矩阵不等式方法进行求解,针对一个四机两区域交直流并联系统设计了直流附加控制器,特征值分析和非线性时域仿真结果均证明设计方法的良好效果。In order to increase the interarea damping of interconnected AC systems during the dynamic process, a wide area robust controller is designed. This controller adopts wide area ＂signals as its feedback input. The power system is a highly nonlinear system, so the H~ method of the robust control is used to develop the controller. The damping of the system is supplied by additional constraints on the closed-loop pole location. Both the robust index constrain and the pole location constrain composes a multi-objective problem, which are transferred into linear matrix inequalities solved by Matlab toolbox. The controller designed is applied to a four-machine two-area system, both the eigenvalue analysis and time-domain simulation confirm the effectiveness of the method.

关 键 词：高压直流输电附加控制 广域测量系统 多目标鲁棒控制 线性矩阵不等式 

分 类 号：TM711[电气工程—电力系统及自动化]