【摘要】 利用backstepping和扰动抑制 (disturbanceattenuation)方法对同步发电机设计了一种非线性自适应鲁棒励磁控制器 .控制设计方法基于同步发电机的三阶非线性模型 ,对于系统中可能出现的各种不确定参数和有界扰动 ,给出了参数自适应律和控制律 ,保证了闭环系统在各种扰动情况下的稳定性 .最后做了系统从初始进入稳态和系统在三相短路及外部常值扰动情况下的仿真 ,并讨论了该方案扩展到多机系统的可能性 .更多还原

【Abstract】 A nonlinear robust adaptive excitation controller based on backstepping technique and disturbance attenuation is proposed here. This design is based on a 3rd order dynamic nonlinear model of synchronous machines. The parameter update law and control law presented in the paper can ensure the stability of the closed loop system in the presence of unknown parameters and bounded exogenous disturbances. Simulations were performed for cases of the start up of generator and for 3 phase short circuit and constant external disturbances. The possibility of the extension to multi machines is also discussed.更多还原