Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications

Ahmed T. Abdel-Wahed; Mohamed Y. Metwly; Ahmed Hemeida; Ayman S. Abdel-Khalik; Mostafa S. Hamad; Shehab Ahmed

doi:10.1109/cpere56564.2023.10119595

Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications

Ahmed T. Abdel-Wahed, Mohamed Y. Metwly, Ahmed Hemeida, Ayman S. Abdel-Khalik, Mostafa S. Hamad, Shehab Ahmed

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

This paper presents integrated on-board battery charging of electric vehicles (EVs) utilizing a six-phase drivetrain; namely, a six-phase permanent magnet (PM) machine equipped with fractional slot concentrated winding (FSCW) and a six-phase inverter. Integrated chargers outperform conventional on-board battery chargers (OBCs) since they exploit the propulsion elements in the charging process, which yields a reduction in the cost and weight of the EVs. Various FSCW slot/pole combinations have shown promise in EV applications, such as 12-slot/l0-pole and 18-slot/l6-pole. However, six-phase windings, i.e., dual threephase (D3P), symmetrical six-phase (S6P), and asymmetrical sixphase (A6P), are not viable for all slot/pole combinations. For example, the six-phase 18-slot/l6-pole machine can only be configured with a D3P winding configuration. Moreover, it is proven in the literature that the A6P is better than the D3P under the EV charging process from the radial forces’ perspective. Thus, this paper presents a comprehensive comparison of two six-phase integrated battery chargers using surface-mount permanent magnet (SPM) machines with D3P and pseudo six-phase (P6P) winding arrangements. The machine is first designed based on the magnetic equivalent circuit (MEC) model and optimized based on multi-objective genetic algorithm (MOGA). Finally, finite element (FE) simulations have been carried out to assess the two winding layouts under both operational modes. The P6P winding layout outperforms the D3P in the propulsion mode, offering a6% torque density enhancement, and in the charging mode, offering a much lower radial force.

Original language	English (US)
Title of host publication	2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)
Publisher	IEEE
DOIs	https://doi.org/10.1109/cpere56564.2023.10119595
State	Published - May 11 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-05-23
Acknowledgements: This work was achieved by the financial support of ITIDAs ITAC collaborative funded project under the category type of advanced research projects (ARP) and grant number ARP2020.R29.7.

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10.1109/cpere56564.2023.10119595

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@inproceedings{294531f93e0c4d8c8323ef63c915508a,

title = "Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications",

abstract = "This paper presents integrated on-board battery charging of electric vehicles (EVs) utilizing a six-phase drivetrain; namely, a six-phase permanent magnet (PM) machine equipped with fractional slot concentrated winding (FSCW) and a six-phase inverter. Integrated chargers outperform conventional on-board battery chargers (OBCs) since they exploit the propulsion elements in the charging process, which yields a reduction in the cost and weight of the EVs. Various FSCW slot/pole combinations have shown promise in EV applications, such as 12-slot/l0-pole and 18-slot/l6-pole. However, six-phase windings, i.e., dual threephase (D3P), symmetrical six-phase (S6P), and asymmetrical sixphase (A6P), are not viable for all slot/pole combinations. For example, the six-phase 18-slot/l6-pole machine can only be configured with a D3P winding configuration. Moreover, it is proven in the literature that the A6P is better than the D3P under the EV charging process from the radial forces{\textquoteright} perspective. Thus, this paper presents a comprehensive comparison of two six-phase integrated battery chargers using surface-mount permanent magnet (SPM) machines with D3P and pseudo six-phase (P6P) winding arrangements. The machine is first designed based on the magnetic equivalent circuit (MEC) model and optimized based on multi-objective genetic algorithm (MOGA). Finally, finite element (FE) simulations have been carried out to assess the two winding layouts under both operational modes. The P6P winding layout outperforms the D3P in the propulsion mode, offering a6% torque density enhancement, and in the charging mode, offering a much lower radial force.",

author = "Abdel-Wahed, {Ahmed T.} and Metwly, {Mohamed Y.} and Ahmed Hemeida and Abdel-Khalik, {Ayman S.} and Hamad, {Mostafa S.} and Shehab Ahmed",

note = "KAUST Repository Item: Exported on 2023-05-23 Acknowledgements: This work was achieved by the financial support of ITIDAs ITAC collaborative funded project under the category type of advanced research projects (ARP) and grant number ARP2020.R29.7.",

year = "2023",

month = may,

day = "11",

doi = "10.1109/cpere56564.2023.10119595",

language = "English (US)",

booktitle = "2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)",

publisher = "IEEE",

}

TY - GEN

T1 - Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications

AU - Abdel-Wahed, Ahmed T.

AU - Metwly, Mohamed Y.

AU - Hemeida, Ahmed

AU - Abdel-Khalik, Ayman S.

AU - Hamad, Mostafa S.

AU - Ahmed, Shehab

N1 - KAUST Repository Item: Exported on 2023-05-23 Acknowledgements: This work was achieved by the financial support of ITIDAs ITAC collaborative funded project under the category type of advanced research projects (ARP) and grant number ARP2020.R29.7.

PY - 2023/5/11

Y1 - 2023/5/11

N2 - This paper presents integrated on-board battery charging of electric vehicles (EVs) utilizing a six-phase drivetrain; namely, a six-phase permanent magnet (PM) machine equipped with fractional slot concentrated winding (FSCW) and a six-phase inverter. Integrated chargers outperform conventional on-board battery chargers (OBCs) since they exploit the propulsion elements in the charging process, which yields a reduction in the cost and weight of the EVs. Various FSCW slot/pole combinations have shown promise in EV applications, such as 12-slot/l0-pole and 18-slot/l6-pole. However, six-phase windings, i.e., dual threephase (D3P), symmetrical six-phase (S6P), and asymmetrical sixphase (A6P), are not viable for all slot/pole combinations. For example, the six-phase 18-slot/l6-pole machine can only be configured with a D3P winding configuration. Moreover, it is proven in the literature that the A6P is better than the D3P under the EV charging process from the radial forces’ perspective. Thus, this paper presents a comprehensive comparison of two six-phase integrated battery chargers using surface-mount permanent magnet (SPM) machines with D3P and pseudo six-phase (P6P) winding arrangements. The machine is first designed based on the magnetic equivalent circuit (MEC) model and optimized based on multi-objective genetic algorithm (MOGA). Finally, finite element (FE) simulations have been carried out to assess the two winding layouts under both operational modes. The P6P winding layout outperforms the D3P in the propulsion mode, offering a6% torque density enhancement, and in the charging mode, offering a much lower radial force.

AB - This paper presents integrated on-board battery charging of electric vehicles (EVs) utilizing a six-phase drivetrain; namely, a six-phase permanent magnet (PM) machine equipped with fractional slot concentrated winding (FSCW) and a six-phase inverter. Integrated chargers outperform conventional on-board battery chargers (OBCs) since they exploit the propulsion elements in the charging process, which yields a reduction in the cost and weight of the EVs. Various FSCW slot/pole combinations have shown promise in EV applications, such as 12-slot/l0-pole and 18-slot/l6-pole. However, six-phase windings, i.e., dual threephase (D3P), symmetrical six-phase (S6P), and asymmetrical sixphase (A6P), are not viable for all slot/pole combinations. For example, the six-phase 18-slot/l6-pole machine can only be configured with a D3P winding configuration. Moreover, it is proven in the literature that the A6P is better than the D3P under the EV charging process from the radial forces’ perspective. Thus, this paper presents a comprehensive comparison of two six-phase integrated battery chargers using surface-mount permanent magnet (SPM) machines with D3P and pseudo six-phase (P6P) winding arrangements. The machine is first designed based on the magnetic equivalent circuit (MEC) model and optimized based on multi-objective genetic algorithm (MOGA). Finally, finite element (FE) simulations have been carried out to assess the two winding layouts under both operational modes. The P6P winding layout outperforms the D3P in the propulsion mode, offering a6% torque density enhancement, and in the charging mode, offering a much lower radial force.

UR - http://hdl.handle.net/10754/691929

UR - https://ieeexplore.ieee.org/document/10119595/

U2 - 10.1109/cpere56564.2023.10119595

DO - 10.1109/cpere56564.2023.10119595

M3 - Conference contribution

BT - 2023 IEEE Conference on Power Electronics and Renewable Energy (CPERE)

PB - IEEE

ER -

Performance Comparison of Six-Phase PM Machine with Several Winding Layouts for EV Applications

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