Abstract
Multiphase permanent-magnet synchronous machines (PMSMs) with nonsinusoidal back-electromotive force (back-EMF) offer high fault tolerance and torque density. Most current-reference generation methods either minimize stator copper loss (SCL) or maximize achievable torque. Optimization of both goals is accomplished by the full-torque-range minimum-loss (FRML) strategies, but so far just for sinusoidal back-EMF. Moreover, many methods are only suitable for healthy conditions or specific machines, harmonics, or open-phase-fault (OPF) scenarios. This paper proposes an online FRML current-reference generation for n-phase PMSMs with nonsinusoidal back-EMF. When the torque reference is feasible without violating the phase-current-peak limit, minimum SCL per torque is attained while maximizing the achievable ripple-free torque value (i.e., FRML). For higher torque references, the instantaneous torque deviation is minimized. This FRML method is suitable for any n, harmonics, and healthy/OPF conditions. Experimental results performed with a six-phase PMSM are provided.
Original language | English (US) |
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Title of host publication | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 5213-5220 |
Number of pages | 8 |
ISBN (Electronic) | 9798350316445 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States Duration: Oct 29 2023 → Nov 2 2023 |
Publication series
Name | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 |
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Conference
Conference | 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 |
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Country/Territory | United States |
City | Nashville |
Period | 10/29/23 → 11/2/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- Fault tolerance
- full-range minimum loss
- multiphase
- nonsinusoidal back-EMF
- open-phase faults
- six phase
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering