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Energies 2017, 10(3), 400; doi:10.3390/en10030400

A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications

1
Department of Electrical Engineering, School of Automation, Northwestern Polytechnical University, Xi’an 710000, China
2
Department of Engineering Science, University of Oxford, Oxford OX5 1PF, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Gabriele Grandi
Received: 20 January 2017 / Revised: 15 March 2017 / Accepted: 17 March 2017 / Published: 20 March 2017
(This article belongs to the Section Electrical Power and Energy System)

Abstract

This paper addresses the design and implementation of a droop controlled three phase bidirectional AC-DC converter for more electric aircraft (MEA) applications. A unified control strategy using a droop characteristic is presented to achieve the bidirectional power flow between the AC and DC source while maintaining a stable DC output voltage. Based on the rigorous control design, the converter is capable of operating over a wide frequency range with a unity power factor. The key findings obtained from the theoretical analysis are confirmed by simulation studies and further validated by a scaled down laboratory prototype. The practical results show good performance of the bidirectional converter and demonstrate the effectiveness of the proposed control strategies. View Full-Text
Keywords: bidirectional converter; more electric aircraft; variable frequency; droop control; LCL-filter bidirectional converter; more electric aircraft; variable frequency; droop control; LCL-filter
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zheng, X.; Gao, F.; Ali, H.; Liu, H. A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications. Energies 2017, 10, 400.

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