基于积分分离模糊PID的开关磁阻发电机最大风能跟踪

The Maximum Wind-Energy Tracking Control for Switched Reluctance Generator Based on Integral-Separation Fuzzy PID

提出采用转速反馈控制方案调节开关磁阻发电机的输出功率,进而调节其电磁转矩和转速,以在风速变化时保持恒定的最佳叶尖速比,实现最大风能跟踪。采用积分分离模糊PID的功率控制器,以适应宽转速运行,提高系统的鲁棒性。给出系统整体控制框图,分析并设计模糊控制器和积分分离算法;构建开关磁阻风力发电系统仿真模型,仿真结果验证了该方法简单可靠、调节快且鲁棒性好,具有一定的工程应用价值。

The output power of switched reluctance generator was controlled by speed feedback, so the torque and speed of it were adjusted to maintain optimal tip speed ratio and achieve maximum power point tracking when the wind speed was changed. The power controller based on integral-separation fuzzy PID was proposed to accommodate the wide- speed operation, so the robustness of the system was improved. The control structure of the system was presented. The fuzzy controller and the integral-separation algorithm were designed. The simulation model of switched reluctance wind-energy generating system was established. Simulation results show that the method is simple, reliable and fast, and the robust performance is good. The value in engineering application is validated.