超导磁储能与发电机励磁的多指标非线性协调控制

采用多指标非线性控制设计方法对SMES与汽轮发电机的励磁进行协调控制设计。多指标非线性设计方法通过恰当地选择输出函数来改变闭环系统的特征根位置，以获得良好的系统控制性能。设计表明，采用多指标非线性控制设计方法能很好地解决高维、多输入多输出非线性控制系统的非线性控制设计问题。仿真结果表明，所设计的控制规律能很好的兼顾系统各状态量的动、静态特性，有效提高系统的稳定运行能力，明显提高系统各输出量的控制精度。

Multi-index Nonlinear Coordinated Control for SMES and Generator Excitation

A multi-index nonlinear coordinated control scheme for single machine infinite bus power system with superconduction magnetic energy storage (SMES) is proposed. The multi-index nonlinear control design method can reassign the poles of the closed-loop system via appropriately selecting the output function of a nonlinear control system, so the control performance of the system can be improved well. The design processes show that the multi-index nonlinear control design method can effectively solve the control problems of high order MIMO nonlinear control systems. The simulation results show that this control design method is effective both for improving the dynamic and the static characteristics of the state variables. It can enhance the stability of the system, and improve the control accuracy of output variable.