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Development of a Grid-Connected Wind Generation System With a Modified PLL Structure

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2 Author(s)
Ramirez, F.A. ; Div. de Estudios de Posgrado e Investig., Inst. Tecnol. de la Laguna, Torreón, Mexico ; Arjona, M.A.

This paper presents the development of a single-phase grid-connected wind energy conversion system (WECS) that uses a modified PLL. The WECS development is based on the use of the low cost 30 MIPS Digital Signal controller (DSC) dsPIC30f3011. The modified single-phase PLL is based on the PQ theory, where a lag structure based on an integrator is proposed instead of a conventional lag structure. The voltage source inverter (VSI) is driven by a Space Vector Pulse Width Modulation (SVPWM). The maximum power transfer is achieved by using a Maximum Power Point Tracking (MPPT) algorithm based on the steepest ascent method. The tasks related to the SVPWM algorithm, the PLL, the MPPT algorithm, and the monitoring of the DC voltage were successfully implemented in the DSC.

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Sustainable Energy, IEEE Transactions on  (Volume:3 ,  Issue: 3 )