Grid connected wind driven permanent magnet synchronous generator with high frequency solid state transformer

Abstract

This paper presents the control of grid connected wind driven permanent magnet synchronous generator through solid state transformer with a high frequency multistage converter interconnect. Maximum power point tracking is carried out in the high frequency generator side converter stage where as the grid side converter takes care of the synchronization. The model parameters for the high frequency transformer are obtained by analytical calculation and the same is used in the simulation. A push pull converter with incremental conductance algorithm on the generator side tracks the MPP. It also converts the dc output into high frequency wave so that it can be directly applied to the primary of the high frequency transformer. The rectified secondary voltage is grid synchronized through the grid side inverter with synchronous reference controller. The entire system including the high frequency transformer is simulated in MATLAB/Simulink for a 2.5 kW PMSG.