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A Control Strategy for Output Maximization of a PMSG Based Variable Speed Wind Turbine

journal contribution
posted on 2023-05-17, 01:24 authored by Md Enamul Haque, Muttaqi, KM, Michael NegnevitskyMichael Negnevitsky
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 rectifier 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 of the switch-mode rectifier and thereby torque of the generator is regulated through a proportional-integral regulator. The operational characteristics of the generating system are investigated under varying wind speed through extensive simulations and the results confirm that the proposed control strategy can maximise the output power under fluctuating wind speeds. © Institution of Engineers Australia, 2009.


Publication title

Australian Journal of Electrical & Electronics Engineering








School of Engineering


Engineers Media

Place of publication

Crows Nest, New South Wales

Repository Status

  • Restricted

Socio-economic Objectives

Wind energy

Usage metrics

    University Of Tasmania