双机系统的模糊PID自适应励磁调节控制

Fuzzy PID Adaptive Generator Excitation Control for Two-machine System

摘要:

针对多机并联系统的稳定性控制问题,在构建同步发电机双机并联运行系统暂态仿真模型的基础上,将基于模糊理论的PID自适应控制方法用于双机并联运行系统的励磁调节自适应控制器的设计；该方法以电压的偏差和变化率作为控制器的输入,然后通过模糊处理,对比例、积分、微分系数进行自适应实时调整；在不同运行模式下对双机并联运行系统进行了仿真与动态性能分析,结果表明所设计的模糊PID自适应控制算法较传统的PID励磁控制具有更好的鲁棒性和抗干扰能力。

Abstract:

Focusing on the stability control of multi-machine power system, the fuzzy PID adaptive control method was applied to adaptive excitation controller design for two machine power system after the transient simulation model was structured. The voltage deviation and its deviating rate are used as the inputs of the controller, and the proportional, integral and differential coefficients are adjusted adaptively in real time by fuzzy processing. The simulation and contrastive analysis of the developed control system was performed in a certain two machine power simulation system under some different operation conditions. The simulation results demonstrate that the fuzzy PID adaptive excitation control has better robustness and disturbance attenuation than traditional PID excitation control methods.