基于LMI技术的交直流输电系统中HVDC阻尼控制器的设计

Robust control design in AC/DC system based on LMI technique

线性矩阵不等式(LMI)技术为多目标控制器的综合提供了新的途径。借鉴有极点区域配置约束的混合H2/H∞问题的LMI解法,设计了HVDC阻尼控制器用于阻尼低频振荡。特征根计算与仿真分析表明,该控制器可在较大范围运行条件向系统提供足够的阻尼。

Linear Matrix Inequality (LMI) technique provides a new approach for the synthesis of multi-objective controller. Based on the LMI for mixed H_2/ H_∞ design under pole region constraints, this paper develops a HVDC damping controller for increasing the electro-mechanical damping. The eigenvalue analysis and simulation show that the controller can provide enough damping in a wide operating condition.