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Energies 2018, 11(12), 3396; https://doi.org/10.3390/en11123396

Research on Commutation and Coordination Control Strategy of Excitation Power Supply Based on Bidirectional Reduced Matrix Converter for Ion Accelerator

1
School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, Shaanxi, China
2
Institute of Modern Physics Chinese Academy of Sciences, Lanzhou 730000, China
3
State Key Laboratory of Large Electric Drive System and Equipment Technology, Tianshui, Gansu 741020, China
*
Author to whom correspondence should be addressed.
Received: 28 October 2018 / Revised: 26 November 2018 / Accepted: 26 November 2018 / Published: 4 December 2018
(This article belongs to the Section Electrical Power and Energy System)

Abstract

The contribution of this paper is putting forward a kind of ion accelerator magnet excitation power supply with bidirectional reduced matrix converter (BRMC) as well as a coordination control strategy with bipolar current space vector modulation strategy, which is utilized to realize bidirectional power flow for a BRMC system to solve problems such as low input power factor, large input current harmonics and no bidirectional energy in the conventional ion accelerator magnet excitation power supply. Meanwhile, a hybrid commutation strategy combining the simplified three-step commutation with zero vector commutation was proposed to solve the commutation problem for a matrix-type first stage in BRMC. The feasibility and effectiveness of the proposed strategy, which can achieve bidirectional energy flow and safer commutation, have been verified by the experimental results. View Full-Text
Keywords: bidirectional reduced matrix converter; coordinated control strategy; hybrid commutation strategy; ion accelerator excitation power supply bidirectional reduced matrix converter; coordinated control strategy; hybrid commutation strategy; ion accelerator excitation power supply
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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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Song, W.; Liu, J.; Sun, X.; Wu, F.; Gao, D.; Wang, Y. Research on Commutation and Coordination Control Strategy of Excitation Power Supply Based on Bidirectional Reduced Matrix Converter for Ion Accelerator. Energies 2018, 11, 3396.

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