Based on nonlinear predictive control ( NPC) theory, a new design method of excitation controller with closed-form analytic solution nonlinear predictive control law is presented. The power angle, the active power and angular velocity are employed as feedback variables. 以功角、有功功率、角速度这些可测量作为反馈量,基于非线性预测控制理论,设计出具有闭合解析形式控制律的励磁控制器。