基于智能分区的大型风电机组变桨距双PI控制技术的研究

Research on Variable Pitch Double PI Control Technology for Large Scale Wind Turbine Based on Intelligent Partitioning

提出基于智能分区的双PI风电机组新型变桨距控制方法,能够保证在不同风速下均有较好的控制结果。在双PI算法中,将发电机转速和功率同时作为PI控制的输入量,利用模糊控制技术实现PI控制器参数的自整定,在不同工作区采用不同的比例系数和积分系数。经仿真分析及风电场现场机组测试,结果证明所提控制策略的正确性和可行性。

A new variable pitch control method based on Intelligent partitioning of double PI wind turbine wasproposed, which can ensure better control results under different wind speeds. In the double PI algorithm, the speedand power of the generator are taken as the input of the PI control at the same time, the fuzzy control technology isused to realize the self-tuning of PI controller parameters, making different working area with different proportioncoefficient and integral coefficient. The simulation results and the test results show that the proposed control strategyis correct and feasible.