Abstract

Permanent magnet synchronous generator (PMSG) is connected the wind turbine directly. Through the full power control of AC-DC-AC converters, the electrical power is then connected to the power grid. The power conversion circuits are made up of generator-side three-level converter, DC-link circuit and the grid-side three-level converter. Based on the maximum wind-energy capture control of the PMSG, the space vector pulse width modulation (SVPWM) method and rotor-flux-oriented vector control strategy are used to achieve the decoupling control of active and reactive power. The simulation and experiment research are conducted. Some waveforms such as three-phase current waveforms, direct-axis & cross-axis current waveforms are given which verify the validity of the proposed algorithm in this paper.

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