Experimental imitation platform of the wind energy generation system with direct-driven permanent magnet synchronous generators

Experimental imitation platform of the wind energy generation system with direct-driven permanent magnet synchronous generators (PMSG) was designed to simulate wind power on-site in a laboratory environment and realize controlled natural wind environment for 10kw wind turbine simulation system. The platform consists of the IPC, asynchronous drag motor, frequency converter, PMSG, power electronic conversion device and gearbox. Establishment and characterization of the wind turbine model is completed by position machine. According to torque coefficient data sets, torque coefficient characteristic curve was set by method of least squares. By given wind turbine parameters, position machine calculates torque and speed value of the wind turbine to control of asynchronous motors and deflectors. Finally, both model and non-model control mode of the test platform is achieved. Experimental results show that the experimental platform can better simulate the running state of the wind turbine to achieve maximum power point tracking. At the same time, the results verify the validity of the MPPT control strategy under laboratory conditions, and effectively improve the power generation efficiency of the generator.