Vector control of a modular multilevel matrix converter operating over the full output-frequency range

Diaz, Matias; Cardenas, Roberto; Espinoza, Mauricio; Hackl, Christoph M.; Rojas, Felix; Clare, Jon C.; Wheeler, Patrick

Abstract

The Modular Multilevel Matrix Converter ( M 3 C ) is an ac-to-ac converter topology suitable for the control of high-power variable-speed drives. The control of this converter is complex, particularly when the two ac system frequencies are similar or identical because large voltage oscillations can be produced in the floating capacitors within the M 3 C . This paper proposes a new Vector Control System based on nested controllers to regulate the M 3 C over the full-range of frequencies. The proposed control scheme is especially useful to mitigate or eliminate the oscillations that arise when the frequencies are similar. An extensive discussion of the model and control of the M 3 C is presented in this work. The effectiveness of the proposed Vector Control System is demonstrated through simulation studies and experimental validation tests conducted with a 27-cell-5kW M 3 C prototype.

Citation

Diaz, M., Cardenas, R., Espinoza, M., Hackl, C. M., Rojas, F., Clare, J. C., & Wheeler, P. (2019). Vector control of a modular multilevel matrix converter operating over the full output-frequency range. IEEE Transactions on Industrial Electronics, 66(7), 5102-5114. https://doi.org/10.1109/tie.2018.2870367

• Journal Article Type: Article
• Acceptance Date: Aug 27, 2018
• Online Publication Date: Sep 20, 2018
• Publication Date: 2019-07
• Deposit Date: Feb 8, 2019
• Publicly Available Date: Feb 11, 2019
• Journal: IEEE Transactions on Industrial Electronics
• Print ISSN: 0278-0046
• Electronic ISSN: 1557-9948
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 66
• Issue: 7
• Pages: 5102-5114
• DOI: https://doi.org/10.1109/tie.2018.2870367
• Keywords: Voltage control; Capacitors; Oscillators; Control systems; Frequency control; Matrix converters; Topology
• Public URL: https://nottingham-repository.worktribe.com/output/1530199
• Publisher URL: https://ieeexplore.ieee.org/document/8469159
• Additional Information: © 2018 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.
• Contract Date: Feb 8, 2019