同步发电机励磁系统的智能变结构控制

论述了一种同步发电机系统的新颖控制方法,采用基于非线性精确化模型的智能变结构控制方式对同步发电机励磁系统进行控制。通过采用指数趋近律,解决了变结构控制中存在的抖动问题,结合智能控制方式,简化控制系统,使控制规律只与切换函数有关,故更易于实现。当系统参数在运行过程中遇到干扰发生变化时,仿真结果显示:30%的偏差仍然能使系统到达平衡点,且具有良好的动态性能和鲁棒性。该设计方法具有一定的通用性,特别适用于复杂的电力系统。

Intelligent Sliding Mode Variable Structure Control for Synchronous Generator Excitation System

A synchronous generator control method adopting intelligent sliding mode variable structure control based on nonlinear accurate mode is presented in the paper, Chattering problem existed in the variable structure control is solved using exponential reaching law.Furthermore,the control system is simplified by using intelligent control method,so that it is only related with the switch function.Simulation result shows that the system can come back to its equilibrium even with a disturbance of 30% deviation.The control system can be applied in the power system for its strong robustness and good dynamic performance.