A vector control of a grid-connected 3L-NPC-VSC with DFIG drives

This paper presents a vector control of grid-connected three-level neutral point clamped voltage source converter (3L-NPC-VSC) connecting doubly-fed induction generator (DFIG) drives for variable-speed wind power generation. The control algorithm of the grid-connected 3L-NPC-VSC applies the concepts...

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Bibliographic Details
Main Authors: W. Srirattanawichaiku, Y. Kumsuwan, S. Premrudeepreechacharn, B. Wu
Format: Conference Proceeding
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77954932818&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50725
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Institution: Chiang Mai University
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Summary:This paper presents a vector control of grid-connected three-level neutral point clamped voltage source converter (3L-NPC-VSC) connecting doubly-fed induction generator (DFIG) drives for variable-speed wind power generation. The control algorithm of the grid-connected 3L-NPC-VSC applies the concepts of the decoupled vector control method, which provides independent control active and reactive power flow and maintain the dc-link voltage constant. The simulation results are shown dynamic and steady-state performance of the grid-connected 3L-NPC-VSC in mode sub-synchronous and super-synchronous speed at low switching frequency that compared with a conventional two-level voltage source converter (2L-VSC). The control strategy is verified by the simulation results with a good sinusoidal current, a low harmonic component and a fast dynamic response.