Wind Power Harnessing of an Integrated HESG based Wind Conversion System Model

Abstract

The performance of a Wind Conversion System (WCS) depends mainly on two factors: the efficiency of the adopted control strategy and the ability of the generator to respond to wind fluctuations. In this context, this paper presents the dynamic modeling and control of a Hybrid Excitation Synchronous Generator (HESG) based Wind Turbine (WT). Robust control strategies for maximizing the captured wind energy below the rated wind speed and allowing to work at the rated power during high wind speeds are proposed. The core contributions of this paper are the realization of an integrated simulation platform allowing to go through the effects of the interactions between the different factors affecting the wind extracted power quality and the robust control of this platform. Here, the space harmonics of the generator, the commutation effects of the power electronics’ converters are taken into account. In addition, the flexible coupling between the WT’s mechanical elements and the aerodynamic interactions are properly presented thanks to the Fatigue, Aerodynamics, Structures and Turbulence (FAST) simulator. The simulation results prove the performance of the synthesized controllers in terms of power controlling and load’s mitigation.