A three-phase modular isolated matrix converter

Nasir, Usman; Costabeber, Alessandro; Rivera, Marco; Wheeler, Pat; Clare, Jon

Abstract

This paper discusses the analysis, design and experimental validation of a Modular Isolated Matrix Converter (MIMC), including modulation, commutation and control. The MIMC topology is a single-stage high power density AC/AC converter which is attractive for traction applications and space-restricted LV or MV future distribution networks. The topology under study utilises bi-directional switches based dual-active-bridge cells as basic building blocks. A single-cell would have limited practical application as the output frequency is locked to the input one. On the contrary, the repetition of single cells proposed in the MIMC extending the matrix converter concept, achieves variable frequency operation while also providing a modular structure. However, the presence of Medium Frequency (MF) transformers in each cell poses additional challenges for modulation and safe-commutation that are discussed and solved in the paper. Experimental results from a proof-of-concept 6kW laboratory scale prototype validate the practical feasibility and the operation of the MIMC.

Citation

Nasir, U., Costabeber, A., Rivera, M., Wheeler, P., & Clare, J. (2019). A three-phase modular isolated matrix converter. IEEE Transactions on Power Electronics, 34(12), 11760-11773. https://doi.org/10.1109/TPEL.2019.2909681

• Journal Article Type: Article
• Acceptance Date: Mar 29, 2019
• Online Publication Date: Apr 9, 2019
• Publication Date: Apr 9, 2019
• Deposit Date: Apr 17, 2019
• Publicly Available Date: Apr 18, 2019
• Journal: IEEE Transactions on Power Electronics
• Print ISSN: 0885-8993
• Electronic ISSN: 1941-0107
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 34
• Issue: 12
• Pages: 11760-11773
• DOI: https://doi.org/10.1109/TPEL.2019.2909681
• Keywords: Direct AC/AC converters, Isolated Matrix Converter, Solid-State Transformers, Venturini Modulation, Commutation, Bi-directional switches
• Public URL: https://nottingham-repository.worktribe.com/output/1823057
• Publisher URL: https://ieeexplore.ieee.org/document/8684890
• Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.