多机电力系统的非线性PID励磁控制

将非线性ND控制引入多机电力系统励磁控制，这种控制方式既保留了线性PID控制的结构简单、易于实现、鲁棒性强的优点，同时又克服了线性PID控制效果受线性化模型限制的缺点。计算机仿真结果表明，非线性PID控制器在不考虑多机之间参数协调的情况下，与发电机线性化最优励磁控制相比，控制效果相似。所设计的控制规律显著地改善了电力系统暂态过程的动态响应。

Nonlinear PID Excitation Control of Multi-Machine Power System

his paper dcals with muIti -machine powcr system stability control bya novel nonlinear PID method. This control method rctains the virtues of the linearPID control,such as simplc in structurc,casy to be realizcd and strong robustness.Meanwhilc, it ovcrconles the shortcoming of the linear PID control effect limited bylinear model. And not considcring the co - ordination of parameters in generators,the numcrical simulation rcsults show that the effcct of thc non - linear PID con-troller is similar to that of thc optimum liecar excitation control. The dynamic re-sponses of power syslcm to which the gencrator is connected are obviously im-proved.