Pitch Control Algorithm of Wind Turbine Based on Back Propagation Neural Network and PID Control

Aiming at pitch system of wind turbine, the paper explores the issue concerning efficient optimization of setting parameters under complex situation. Based on conventional PID control system, the NN (neural network) control has been introduced, using NN auto tuning, online optimization setting PID controller. The improvement has greatly increased control precision, promoted generating efficiency, and accordingly reduced mechanical load. The algorithm simulation testing has been carried out on the basis of Bladed software platform, as a result of which the static and dynamic performance have been largely improved in complex situation.