| This article summarizes a lot of relevant research data on wind power technology is analyzed in detail, first determine the pitch moment drives, the control system is selected as a stand-alone mode from the electric pitch control. On the aerodynamic characteristics of wind turbines corresponding analyzed under different wind conditions to develop the appropriate control strategies. The corresponding time is short because the PID algorithm is very simple operation, good stability, thus is taken herein PID algorithm. In addition, PLC has the practical application process advantages, coupled with lower prices, on the basis of comprehensive consideration, we use the model of the controller is S7-200, taken after drawing a PID algorithm to control the pitch moments controller the hardware connection diagram and block diagram. Finally, take the V4.0 STEP 7 MicroWIN SP6 software completed the entire software design. |