基于LMI方法的同步发电机H_2励磁控制器的设计

Design of H_2 excitation controller for synchronous generator based on LMI theory

为了提高同步发电机励磁系统的鲁棒性,将线性矩阵不等式(LM I)方法和H2控制理论应用于同步发电机励磁控制器的设计.计算机仿真结果表明,利用LM I方法所设计的H2励磁控制器,有效地提高了系统的鲁棒性,即在确保稳定性的前提下提高了系统的响应速度,改善了船舶电力系统调压的效果.

In order to improve the robustness of excitation system of synchronous generators, a controller for the excitation system was designed with H2 control and linear matrix inequality （LMI） theory whereby the specifications of the system was converted into a standard H2 state feedback control problem. The computer simulation result shows that the H2 excitation controller designed with LMI theory substantially improves the robustness, raises the response speed while the stability is guaranteed, and improves the voltage regulation effect of power system