Dual-Modulator Compensation Technique for Parallel Inverters Using Space-Vector Modulation | IEEE Journals & Magazine | IEEE Xplore

Dual-Modulator Compensation Technique for Parallel Inverters Using Space-Vector Modulation


Abstract:

In common dc-link parallel-inverter systems, the amplitudes and the phase angles of three-phase inverters can be separately adjusted to control power sharing. However, wh...Show More

Abstract:

In common dc-link parallel-inverter systems, the amplitudes and the phase angles of three-phase inverters can be separately adjusted to control power sharing. However, when the space-vector modulation technique is used in a parallel-inverter system without the output transformers, the zero-sequence circulating current will occur. This paper provides detailed analysis of the zero-sequence circulating current and proposes a novel dual-modulator compensation technique for eliminating the zero-sequence circulating current caused by power-sharing control systems. Results obtained from both simulation and experiments confirmed the performance and the effectiveness of the proposed compensation method.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 56, Issue: 8, August 2009)
Page(s): 3004 - 3012
Date of Publication: 15 May 2009

ISSN Information:


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