摘要
针对独立变桨风力发电机,分析了风力发电机运行原理,基于以上原理在Matlab下分别建立了1.5MW独立变桨风力发电机的监测控制系统、独立变桨距控制系统、偏航控制系统、液压执行器系统和电网系统的物理模型,设计了独立变桨距控制模糊PI控制器,与传统PI控制器进行了仿真对比。仿真结果表明了该物理模型的正确性,对比结果表明,模糊PI控制器不仅能提高节距角跟踪精度而且能够稳定输出电压和输出功率,同时也减小了拍打震动和桨叶载荷。
The wind turbines operating principle for individual pitch control wind turbine was analyzed, 1.5 MW wind turbine pitch individual monitoring and control system based on the above principle were established in Matlab. Individual pitch control systems, yaw control system, physical model of the hydraulic actuator system and grid system model were set up too. A fuzzy PI controller was designed for individual pitch regulate, it was simulated and compared with conventional PI controller. Simulation results show the correctness of the physical model, the comparison shows that the fuzzy PI controller can not only improve the tracking accuracy of pitch angle but also be able to stabilize the output voltage and output power, while also reducing the tapping vibration and blade load.
出处
《可再生能源》
CAS
北大核心
2013年第9期44-48,共5页
Renewable Energy Resources
基金
教育部重点项目(212192)
