基于最优H_∞的静止同步补偿器控制

STATCOM Based on Optimal H_∞ Control

针对Riccati方程的处理方法中需要人为确定参数的困难,提出了一种基于最优H∞的静止同步补偿器控制策略,将控制问题转化成一个线性矩阵不等式系统的可行性问题。首先推导了静止同步补偿器的数学模型,然后考虑了电网中存在的系统噪声的影响,设计的控制器可以抑制噪声干扰。最后对静止同步补偿器应用进行了仿真,验证了所设计的控制器的有效性。

Because the parameters of Riccati equation need be fixed artificially,a new method based on optimal H∞ control strategy for STATCOM was put forward,which changed the control problems to a feasibility problem of linear matrix inequalities and could solve the problem which Riccati equation method brings.This paper firstly derived the mathematical model of the STATCOM system.Moreover,the noise of system was considered,and the controller could make noise suppression as well.The results of simulation and experiments for STATCOM prove the design＇s good performance.