机构地区: 广东工业大学自动化学院电气测控工程系
出 处: 《广东工业大学学报》 1997年第1期65-71,共7页
摘 要: 采用带可变遗忘因子的最小二乘参数辨识算法和带可变移动因子的极点移动技术,推导出一种新的自适应PID励磁控制算法,实现了同步发电机励磁的非线性调节。文中介绍了调节器的设计原理,给出了动模试验结果。结果表明,该励磁调节器具有很好的调节特性,不仅优于常规的PID控制器,而且比其它控制规律的励磁调节器更简单、更适合工程应用。 The design of a new adaptive PID excitation regulator for synchronous machines, based on a linearized model of excitation system, is discussed. The model parameters are estimated in real time by using the improved recursive-least-squares identification method with fast auto-regulation forgetting factor. The PID controller parameters are calculated by using a pole-shifting technique with time-varying shifting factor. The results obtained by dynamic simulationtest show that the new adaptive PID excitation regulator provides a very good performance, which is superior to that of a conventional PID controller and to that of PSS.
领 域: [电气工程]