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

Weizhang Song, Jiang Liu, Xiangdong Sun, Fenjun Wu, Daqing Gao and Youyun Wang
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Weizhang Song: School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, Shaanxi, China
Jiang Liu: School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, Shaanxi, China
Xiangdong Sun: School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, Shaanxi, China
Fenjun Wu: Institute of Modern Physics Chinese Academy of Sciences, Lanzhou 730000, China
Daqing Gao: Institute of Modern Physics Chinese Academy of Sciences, Lanzhou 730000, China
Youyun Wang: State Key Laboratory of Large Electric Drive System and Equipment Technology, Tianshui, Gansu 741020, China

Energies, 2018, vol. 11, issue 12, 1-21

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.

Keywords: bidirectional reduced matrix converter; coordinated control strategy; hybrid commutation strategy; ion accelerator excitation power supply (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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