基于Adams多步法预测的励磁控制器的设计

Design of Excitation Controller based on Adams Fourth-order Predective

本文介绍了一种新的励磁非线性控制器设计方法,该方法使用预测控制理论以单机无穷大系统励磁控制为对象,以功角、角速度和有功功率作为变量,以发电机转子角速度为输出函数,用Adams四阶预测法展开输出函数,幵迚行在线滚动优化,最后得到了预测励磁控制规律。仿真结果表明,该方法与泰勒级数方法比较,既能改善发电机的机械稳定性,又能改善发电机端电压的动态特性,具有较高的控制品质。

Based on nonlinear predictive control theory a new nonlinear excitation controller is designed for machine infinite excitation control system. This system takes the power angle, angular velocity and active as variables, with generator rotor angular velocity of the output function ,using Adams fourth-order prediction method with expanded output function, and than optimize online scroll, finally, the prediction excitation control law is founded out successfully. Compared with Taylor series method, the simulink results show that this method not only can improve the mechanical stability of the generator, but also improve the dynamic characteristics of the generator terminal voltage, achieved good dynamic character.