Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Improved direct power control of doubly-fed induction generator based wind energy generation system

Zhi, D. and Xu, L. and Morrow, John A. (2007) Improved direct power control of doubly-fed induction generator based wind energy generation system. In: IEEE International Electric Machines and Drives Conference (IEMDC 2007), 2007-05-03 - 2007-05-05.

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

This paper proposes an improved constant switching frequency direct power control (CSFDPC) strategy for doubly-fed induction generator (DFIG) based wind energy generation systems. Unlike the conventional vector control scheme which is based on rotor current decoupling control, the proposed CSFDPC strategy directly calculates the rotor voltage within each fixed sampling period to reduce the stator active and reactive power errors. Compared to the look-up-table based DPC strategy, constant switching frequency of the rotor side converter is achieved so as to ease the design of the converter and harmonic filter. In order to provide precise stator active and reactive power control and to reduce the steady-state power errors, several compensation strategies are introduced. Simulation results for a 2MW DFIG system are provided to demonstrate the effectiveness and the robustness of the proposed control strategy during variations of active and reactive power and rotor speed.