A Novel Multi-Criteria Local Latin Hypercube Refinement System for Commutation Angle Improvement in IPMSMs

Fuente: arXiv
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Main Authors: Asef, Pedram, Denai, Mouloud, Paulides, Johannes J. H., Marques, Bruno Ricardo, Lapthorn, Andrew
Format: Preprint
Published: 2025
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author Asef, Pedram
Denai, Mouloud
Paulides, Johannes J. H.
Marques, Bruno Ricardo
Lapthorn, Andrew
author_facet Asef, Pedram
Denai, Mouloud
Paulides, Johannes J. H.
Marques, Bruno Ricardo
Lapthorn, Andrew
contents The commutation angle is defined as the angle between the fundamental of the motor phase current and the fundamental of the back-EMF. It can be utilised to provide a compensating effect in IPMSMs. This is due to the reluctance torque component being dependent on the commutation angle of the phase current even before entering the extended speed range. A real-time maximum torque per current and voltage strategy is demonstrated to find the trajectory and optimum commutation angles, gamma, where the level of accuracy depends on the application and available computational speed. A magnet volume reduction using a novel multi-criteria local Latin hypercube refinement (MLHR) sampling system is also presented to improve the optimisation process. The proposed new technique minimises the magnet mass to motor torque density whilst maintaining a similar phase current level. A mapping of gamma allows the determination of the optimum angles, as shown in this paper. The 3rd generation Toyota Prius IPMSM is considered as the reference motor, where the rotor configuration is altered to allow for an individual assessment.
format Preprint
id arxiv_https___arxiv_org_abs_2503_03372
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Novel Multi-Criteria Local Latin Hypercube Refinement System for Commutation Angle Improvement in IPMSMs
Asef, Pedram
Denai, Mouloud
Paulides, Johannes J. H.
Marques, Bruno Ricardo
Lapthorn, Andrew
Computational Engineering, Finance, and Science
Emerging Technologies
Machine Learning
Systems and Control
The commutation angle is defined as the angle between the fundamental of the motor phase current and the fundamental of the back-EMF. It can be utilised to provide a compensating effect in IPMSMs. This is due to the reluctance torque component being dependent on the commutation angle of the phase current even before entering the extended speed range. A real-time maximum torque per current and voltage strategy is demonstrated to find the trajectory and optimum commutation angles, gamma, where the level of accuracy depends on the application and available computational speed. A magnet volume reduction using a novel multi-criteria local Latin hypercube refinement (MLHR) sampling system is also presented to improve the optimisation process. The proposed new technique minimises the magnet mass to motor torque density whilst maintaining a similar phase current level. A mapping of gamma allows the determination of the optimum angles, as shown in this paper. The 3rd generation Toyota Prius IPMSM is considered as the reference motor, where the rotor configuration is altered to allow for an individual assessment.
title A Novel Multi-Criteria Local Latin Hypercube Refinement System for Commutation Angle Improvement in IPMSMs
topic Computational Engineering, Finance, and Science
Emerging Technologies
Machine Learning
Systems and Control
url https://arxiv.org/abs/2503.03372