Lim, CS, Lee, SS and Levi, E (2022) Continuous-control-set Model Predictive Current Control of Asymmetrical Six-phase Drives Considering System Non-idealities. IEEE Transactions on Industrial Electronics. ISSN 0278-0046

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Abstract

Finite-control-set model predictive control (FCS-MPC) of multiphase (n-phase, n is assumed to be an odd number for simplicity) drives is challenging because of the large number of actual/virtual voltage vectors and the need for current control in (n-1)/2 sub-spaces (or planes; multi-plane current control). Any sub-optimal design (poor or no current control in some of the (n-1)/2 planes) may result in high individual plane current ripples, due to the low reactance. This work therefore investigates continuouscontrol-set (CCS) MPC for constant switching frequency multiphase motor drives as another alternative. The highbandwidth CCS-MPC is designed to accurately account for system non-idealities, namely digital control and pulse width modulation delays, inverter dead time, and measurement noise. It will be shown that the CCS-MPC has the advantages of full voltage vector space access, regular switching characteristic, and improved cycle-by-cycle tracking control, while maintaining some of the known advantages of the FCS-MPC, e.g., intuitive cost function design, model-based control, and fast dynamics. The proposed control scheme is benchmarked experimentally against the classical, proportional-integral-based, fieldoriented control in conjunction with an asymmetrical sixphase induction motor drive.

Item Type:	Article
Additional Information:	© 2022 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.
Uncontrolled Keywords:	Multiphase drives, model predictive control, finite control set, continuous control set.; 08 Information and Computing Sciences; 09 Engineering; Electrical & Electronic Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions:	Engineering
Publisher:	Institute of Electrical and Electronics Engineers
SWORD Depositor:	A Symplectic
Date Deposited:	09 Sep 2022 10:29
Last Modified:	23 Sep 2022 10:00
DOI or ID number:	10.1109/TIE.2022.3206703
URI:	https://researchonline.ljmu.ac.uk/id/eprint/17527

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