Modeling and simulation of maximum wind energy capture and variable pitch control of permanent-magnet direct-drive wind power generation system

In recent years, with the development of economy and construction, clean energy has become the main development direction in the future. The wind energy has clean, renewable and pollution-free advantages, which make it more widely applied than other renewable energy. How to effectively improve the utilization rate of wind energy has become a major problem. This paper takes the permanent magnet direct-drive wind power generation system as the research object, and researches on the maximum power point tracking and pitch control of machine side. By using variable step hill-climbing searching method to track the maximum power point and pitch control with power compensation, the simulation model is established by using Matlab/Simulink and the simulation results and analysis are given. The wind power generation units can fulfill maximum wind energy capture function and variable pitch control.