RESEARCH ON INDEPENDENT VARIABLE PITCH CONTROL OF LARGE OFFSHORE WIND TURBINE

摘要

In the paper, large offshore wind turbine key system is firstly modeled for analyzing large offshore wind turbine geographical variable pitch control strategy. Single-neuron selfadaptive PID independent variable pitch control is proposed aiming at characteristics of large offshore wind turbine. United simulation is implemented on FAST, Turbsim, IEWind and Mcrunch software as well as MATLAB/Simulink. ITI-5MW fan developed by renewable energy lab is adopted for large offshore floating wind turbine as simulation model. Simulation experiment is implemented on control algorithm proposed in the paper. Experiment result shows that single-neuron self-adaptive PID independent variable pitch control is adopted in the paper, which is better than coordination variable pitch controller in the aspects of blade root load reduction, output power stability, smaller platform displacement, etc. with wider realistic significance.