Study on the Multiple Voltage Source Inverter for Grid-Connected Large-Scale Wind Energy Conversion System

Abstract:

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This paper proposes a novel grid-connected multiple voltage source inverter (VSI) for large-scale wind energy conversion system (WECS) applications. Firstly, the typical configuration, operation principle and mathematical modeling of the direct-drive grid-connected WECS are analyzed in brief. Then, a suitable topology of the grid-connected multiple VSI composed of two six-pulse inverters, two separate zig-zag transformers and a dc-link capacitor is presented. In order to reduce numbers of commutations and to increase dc-link voltage utilization ratio of the proposed grid-connected multiple VSI, a quasi twelve-pulse phase-shift PAM switching strategy is demonstrated. Finally, a simulation test system is set up by using MATLAB/SIMULINK, and the results of simulation validate the effectiveness of the proposed grid-connected multiple VSI.

Info:

Periodical:

Edited by:

Yuhang Yang, Xilong Qu, Yiping Luo and Aimin Yang

Pages:

70-74

DOI:

10.4028/www.scientific.net/AMR.216.70

Citation:

J. F. Mao et al., "Study on the Multiple Voltage Source Inverter for Grid-Connected Large-Scale Wind Energy Conversion System", Advanced Materials Research, Vol. 216, pp. 70-74, 2011

Online since:

March 2011

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$35.00

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