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

Jing Feng Mao; Guo Qing Wu; Ai Hua Wu; Yang Cao; Kun Yang

doi:10.4028/www.scientific.net/AMR.216.70

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 216Study on the Multiple Voltage Source Inverter for...

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

Abstract:

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.

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Periodical:

Advanced Materials Research (Volume 216)

Pages:

70-74

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.216.70

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Online since:

March 2011

Authors:

Jing Feng Mao, Guo Qing Wu, Ai Hua Wu, Yang Cao, Kun Yang

Keywords:

Grid-Connected Inverter, Multilevel Converter, Multiple Voltage Source Inverter, Pulse Amplitude Modulation, Wind Energy

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References

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