励磁系统的辅助阻尼控制研究

利用鲁棒控制理论并结合广域测量技术，采用集中或分散控制策略进行励磁系统的辅助阻尼控制器设计。当远端信号实时可测时同时利用远端和局部信号作为反馈输入；反之只利用局部反馈信息。利用参与相量和留数进行控制器的定位及远端信号的选取之后，采用具有极点配置约束的频域整形方法进行控制器鲁棒综合，并选取线性矩阵不等式(linear matrix inequalities，LMI)解法进行数值求解。4机电力系统的仿真结果验证了设计的控制器的有效性和鲁棒性。

Research on Auxiliary Damping Control of Excitation System

By use of robust control theory and integrating with wide area measurement technique,the auxiliary damping controllers for excitation system,which are based on centralized or decentralized control strategies respectively,are designed.While remote signal is measurable,both remote signal and local signal are used as feedback inputs;conversely,only local signal is used as feedback input.The procedures of the design is as following: firstly,by use of participating phasor and residual,the positioning of the controller and the selection of remote signal are performed;then,by means of frequency-domain reshaping method with pole placement,the robust synthesis of the controller is conducted,and the linear matrix inequality(LMI) method is chosen to implement numerical solution.The effectiveness and robustness of the designed controller are verified by both simulation results of a four machine test system and comparison results of the designed controller with the damping control of conventional power system stabilizer(PSS).