非线性励磁控制器在线参数估计方法研究

Research on nonlinear excitation controller on-line parameter estimation method

在自适应方法基础上同时利用跟踪误差和预测误差,提出了一种非线性励磁控制器的复合自适应在线参数估计方法。该方法在保证系统稳定性和获得较小的跟踪误差基础上,更明显提高了参数估计的快速性和光滑性。数字仿真试验表明,设计的非线性自适应励磁控制器具有较强的参数自适应能力,且保证了系统的稳定性。

In fact, there are uncertain generator paremeters. This paper presents multiple adaptive on -line parameter estimation for a nonlinear excitation control design that based on general adaptive method, and considered track error and forecast error. This method improved visibly speediness and slick performance. The digital simulation results verified the suggested control strategy has adapted well to the parameter inaccuracy, and guaranted the system stabilization .