Experimental research of wind power simulation platform based on PLC and DC motor

REN Li-na1，YANG Juan-xia1，LIU Ji-si2，LIU Fu-cai1

（1. Key Lab of Industrial Computer Control Engineering of Hebei Province，Yanshan University，Qinhuangdao

066004，China； 2. Gulf Security Technology Company，Qinhuangdao 066004，China）

Abstract：In order to solve the problems of wind energy in the wind power，an experimental platform has been developed to simulate the wind power system. The system consists of a DC motor，which dirves a permanent magnet synchronous generator（PMSG）. In the experiment，BECKHOFF PLC was used as the main controller and the upper computer control interface was designed using KingView. The shaft torque of a DC motor was regulated by the DC Driver and the speed of the PMSG was controlled by the PID algorithm in the TwinCAT PLC controller toolbox thus realizing the imitation of the wind turbine torque characteristic and the optimum speed tracking of the PMSG. At last，experiments were carried out on the platform for the control strategy of maximum power point tracking（MPPT）based on optimal tip speed ratio（TSR）. The results show that MPPT is implemented dynamically under a variety of wind conditions，thus verifying the validity and feasibility of the experimental platform.