Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages

Kodai Okazaki; Yoshihiro Miyama; Kan Akatsu

doi:10.1109/IEMDC.2019.8785146

Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages

Kodai Okazaki, Yoshihiro Miyama, Kan Akatsu

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

Abstract

Permanent magnet synchronous motors (PMSMs) are widely used for many purposes because of their efficiency and energy density. Because of their increased use, they require improved efficiency, lower noise, and fewer vibrations. Static eccentricity and roundness degradation generate a magnetic unbalance in the magnetic gap and cause a low-order harmonic electromagnetic force and cogging torque that creates noise and vibration. Since multi-three-phase PMSMs can individually control the phase current of each group, it is possible to reduce magnetic unbalance in the magnetic gap; however, to control the phase current of each group, the magnetic unbalance must be detected. In this study, we use the harmonics of no-load stator voltages to theoretically and analytically detect static eccentricity on multi-three-phase PMSMs.

Original language	English
Title of host publication	2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	671-677
Number of pages	7
ISBN (Electronic)	9781538693490
DOIs	https://doi.org/10.1109/IEMDC.2019.8785146
Publication status	Published - 2019 May
Event	11th IEEE International Electric Machines and Drives Conference, IEMDC 2019 - San Diego, United States Duration: 2019 May 12 → 2019 May 15

Publication series

Name	2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019

Conference

Conference	11th IEEE International Electric Machines and Drives Conference, IEMDC 2019
Country	United States
City	San Diego
Period	19/5/12 → 19/5/15

Keywords

Harmonics of no-load stator voltages
Multi-three-phase
Permanent magnet synchronous motor
Static eccentricity

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Mechanical Engineering

Access to Document

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Okazaki, K., Miyama, Y., & Akatsu, K. (2019). Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. In 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019 (pp. 671-677). [8785146] (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMDC.2019.8785146

Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. / Okazaki, Kodai; Miyama, Yoshihiro; Akatsu, Kan.

2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 671-677 8785146 (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019).

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

Okazaki, K, Miyama, Y & Akatsu, K 2019, Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. in 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019., 8785146, 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019, Institute of Electrical and Electronics Engineers Inc., pp. 671-677, 11th IEEE International Electric Machines and Drives Conference, IEMDC 2019, San Diego, United States, 19/5/12. https://doi.org/10.1109/IEMDC.2019.8785146

Okazaki K, Miyama Y, Akatsu K. Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. In 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 671-677. 8785146. (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019). https://doi.org/10.1109/IEMDC.2019.8785146

Okazaki, Kodai ; Miyama, Yoshihiro ; Akatsu, Kan. / Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 671-677 (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019).

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abstract = "Permanent magnet synchronous motors (PMSMs) are widely used for many purposes because of their efficiency and energy density. Because of their increased use, they require improved efficiency, lower noise, and fewer vibrations. Static eccentricity and roundness degradation generate a magnetic unbalance in the magnetic gap and cause a low-order harmonic electromagnetic force and cogging torque that creates noise and vibration. Since multi-three-phase PMSMs can individually control the phase current of each group, it is possible to reduce magnetic unbalance in the magnetic gap; however, to control the phase current of each group, the magnetic unbalance must be detected. In this study, we use the harmonics of no-load stator voltages to theoretically and analytically detect static eccentricity on multi-three-phase PMSMs.",

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