The Design Of Wind Power Generation Control System Based On PLC

With the rapid development on industry of the countries around the world, the problemthat depletion of conventional energy including oil, gas, coal and other natural energy sourcesand environment pollution problem are increasingly prominent. Wind energy generation hasthe advantages of wide sources, pollution-free, easy to large-scale development, shortconstruction period, lower price, making it one of the most development potential of the newenergy.In order to reduce investment costs on wind turbine, the whole wind turbine structureand generation capacity are increasing, and wind turbine control system is more and morecomplicated. New control algorithm and new technology are constantly applied to windturbine control system.Compared with developed countries, wind power control technology in our country stilllags behind them. Wind turbine equipment manufacturing enterprises and some of the collegesand universities are studying and researching wind turbine control technology. By test ofdragging generator, you can observe the work process of wind turbine control system andmonitor output parameters of generator, and verify the most power tracing process andprinciple.The pitch control system is modeled on MATLAB/Simulink. The simulation results ofpitch control system shows that the fuzzy control algorithm is in line with expectations thedesign requirements. The simulation data is deposited into BECKHOFF PLC. Through fuzzycontrol query table, the pitch system is controlled by wind turbines control system.Bycomparing the conventional PID simulation and fuzzy PID simulation, the simulation resultsof the fuzzy PID control algorithm applied to the yaw control system is more satisfied.