Power Flow in PMSG Connected Wind Energy Conversion System through Current Source Converter Using Space Vector Modulation Technique

This paper proposes to work on power flow system for a wind turbine comprising a grid connected through Permanent Magnet Synchronous Generator and a power converter where it is employed as the bridge between the generator and the grid for megawatt power generation. At this power level, current source converter (CSC) topology possess favourable features such as simple structure grid friendly waveforms, controllable power factor, and reliable grid short-circuit protection and those are better than voltage source converter topology. Current-source converter not only controls real and reactive power flow in the network, but also regulates the dc link current. In this paper, back-to-back space vector pulse width modulation (SV-PWM) technique is used in current-source converter (CSC) topology is proposed for high-power wind energy applications. The system’s dynamic performance is further improved by adopting generator-side power feed forward controller. Simulation results are provided to verify the proposed control scheme.