Zero-sequence voltage elimination for dual fed common dc-link open-end winding PMSM high speed starter-generator, part II: dead time hysteresis control of zero sequence current

Rovere, Luca; Formentini, Andrea; Lo Calzo, Giovanni; Zanchetta, Pericle; Cox, Tom

Abstract

In a common dc link dual-fed Open-End Winding Permanent Magnet Synchronous Motor (OEW-PMSM) topology it is well known how the additional flow of a Zero-Sequence Current (ZSC) is permitted. The low Zero-Sequence Impedance (ZSI) characteristic of high speed machines leads to high intensity and high frequency ripple of the ZSC. Therefore there is the necessity to eliminate the Zero-Sequence-Voltage (ZSV) produced by the two Voltage Source Converters (VSCs) that feed the machine. Furthermore the non-sinusoidal back Electro Magnetic Force (back EMF) causes the circulation of a third harmonic ZSC. An OEW-PMSM high speed starter-generator fed by a dual-inverter with single dc link is considered. Part I of this work proposes a modulation for the considered topology able to eliminate instantaneously the ZSV produced. In this paper a detailed analysis of the Dead Time (DT) effect on the ZSV has been carried out and a novel hysteresis control for the ZSC using the DT as a control action is presented. The DT produces a ZSV distortion on the zero axis that can be used to control the third harmonic ZSC flowing due to the non-sinusoidal machine back EMF.

Citation

Rovere, L., Formentini, A., Lo Calzo, G., Zanchetta, P., & Cox, T. (2019). Zero-sequence voltage elimination for dual fed common dc-link open-end winding PMSM high speed starter-generator, part II: dead time hysteresis control of zero sequence current. IEEE Transactions on Industry Applications, 55(6), 7813-7821. https://doi.org/10.1109/tia.2019.2907095

• Journal Article Type: Article
• Acceptance Date: Feb 2, 2019
• Online Publication Date: Mar 25, 2019
• Publication Date: Nov 1, 2019
• Deposit Date: Aug 14, 2019
• Publicly Available Date: Aug 15, 2019
• Journal: IEEE Transactions on Industry Applications
• Print ISSN: 0093-9994
• Electronic ISSN: 1939-9367
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 55
• Issue: 6
• Pages: 7813-7821
• DOI: https://doi.org/10.1109/tia.2019.2907095
• Keywords: Control and Systems Engineering; Electrical and Electronic Engineering; Industrial and Manufacturing Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/2428152
• Publisher URL: https://ieeexplore.ieee.org/document/8673647
• 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.
• Contract Date: Aug 14, 2019