In this paper, a hybrid topology of series-connected passive-active rectifiers is proposed for offshore wind energy conversion systems (WECSs). In particular a combined structure of a voltage-source converter (VSC) and a diode rectifier (DR) is connected to a double-star permanent magnet synchronous generator (2S-PMSG) reducing cost and losses. Nonetheless, the current harmonics due to diodes behavior are mitigated without using large AC filters using an appropriate control structure. The VSC is downsized compared to a fully active rectifier stage. The potential benefits of this hybrid topology include low power losses, low costs, and smaller footprint resulting from diode-based component. The simulation results for 20 kW generation system are shown to verify the effectiveness of the proposed approach and the control method.

Power control of series connected passive-active rectifiers for a dual-star PMS wind generator

Rossi, Mattia;Dezza, Francesco Castelli;Mauri, Marco;Carmeli, Maria Stefania
2017

Abstract

In this paper, a hybrid topology of series-connected passive-active rectifiers is proposed for offshore wind energy conversion systems (WECSs). In particular a combined structure of a voltage-source converter (VSC) and a diode rectifier (DR) is connected to a double-star permanent magnet synchronous generator (2S-PMSG) reducing cost and losses. Nonetheless, the current harmonics due to diodes behavior are mitigated without using large AC filters using an appropriate control structure. The VSC is downsized compared to a fully active rectifier stage. The potential benefits of this hybrid topology include low power losses, low costs, and smaller footprint resulting from diode-based component. The simulation results for 20 kW generation system are shown to verify the effectiveness of the proposed approach and the control method.
2017 6th International Conference on Clean Electrical Power: Renewable Energy Resources Impact, ICCEP 2017
9781509046829
Active rectifiers; Diode rectifiers; Dual-Star Motors; Power control; Wind generation; Energy Engineering and Power Technology; Renewable Energy, Sustainability and the Environment
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1044339
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