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A Control Strategy For Output Maximisation Of A Pmsg-Based Variable-Speed Wind Turbine, M E. Haque, K M. Muttaqi, M Negnevitsky

Faculty of Engineering and Information Sciences - Papers: Part A

This paper presents a control strategy for output maximisation of a direct drive permanent magnet synchronous generator (PMSG)-based small-scale variable-speed wind turbine. The control topology uses a single switch three-phase switch-mode rectifi er and the generator torque, and power is controlled by controlling the switch duty cycle of the switch. To extract maximum power from the wind, the torque reference of the PMSG is calculated from generator speed and wind turbine characteristics. From this torque reference, a current reference is calculated using measured DC link voltage and generator speed. The current error is then used to control the duty cycle …