Modeling and Simulation of PMSG Wind Turbine with Boost Converter Working under Discontinuous Conduction Mode

This paper describes modeling and simulation of a new design of wind turbines based on the permanent magnet synchronous generator (PMSG). The proposed design reduces the manufacture cost by connecting the PMSG to the grid through a boost converter in the DC-link that is operated in the discontinuous conducting mode (DCM).

The new wind turbine model with the variable speed control of the PMSG based on duty cycle control of the boost converter has been developed in Matlab Simulink. Simulation studies show that DCM working mode of the boost converter provides more flexibility in controlling the duty cycle, and reduces the current flow and therefore the losses accordingly.