Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine

Chen Yen Yu, Takashi Fukushige, Apoorva Athavale, Brent Gagas, Kan Akatsu, David Reigosa, Robert D. Lorenz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

This paper focuses on zero/low speed magnetization state (MS) estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine (VTI-IPMSM). For VFI-IPMSMs, the knowledge of the MS is necessary to achieve loss minimizing control, since loss properties vary with MS. The MS can be estimated by measuring EMF, however, voltage sensors are not commonly used in standard drives. If a flux observer is used, accurate estimation is difficult at zero/low speed due to the diminishing EMF signal. To solve this issue, a superimposed high frequency (HF) injection method for MS estimation is proposed. Physically, higher MS implies a higher saturation condition which results in lower differential inductance. With a constant HF voltage injection, lower inductance (higher MS) results in a larger HF current response and vice versa. As a result, by imposing a HF voltage signal, the MS can be estimated through the HF current response. The proposed MS estimation methodology is evaluated experimentally with a fabricated fractional slot VFI-IPMSM and demonstrates effective MS estimation within 5 % error.

Original languageEnglish
Title of host publication2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2495-2502
Number of pages8
ISBN (Print)9781479956982
DOIs
Publication statusPublished - 2014 Nov 11
Event6th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2014 - Pittsburgh, United States
Duration: 2014 Sep 142014 Sep 18

Other

Other6th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2014
CountryUnited States
CityPittsburgh
Period14/9/1414/9/18

Fingerprint

State estimation
Permanent magnets
Magnets
Magnetization
Fluxes
Electric potential
Inductance
Sensors

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Yu, C. Y., Fukushige, T., Athavale, A., Gagas, B., Akatsu, K., Reigosa, D., & Lorenz, R. D. (2014). Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine. In 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014 (pp. 2495-2502). [6953733] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2014.6953733

Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine. / Yu, Chen Yen; Fukushige, Takashi; Athavale, Apoorva; Gagas, Brent; Akatsu, Kan; Reigosa, David; Lorenz, Robert D.

2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 2495-2502 6953733.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yu, CY, Fukushige, T, Athavale, A, Gagas, B, Akatsu, K, Reigosa, D & Lorenz, RD 2014, Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine. in 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014., 6953733, Institute of Electrical and Electronics Engineers Inc., pp. 2495-2502, 6th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2014, Pittsburgh, United States, 14/9/14. https://doi.org/10.1109/ECCE.2014.6953733
Yu CY, Fukushige T, Athavale A, Gagas B, Akatsu K, Reigosa D et al. Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine. In 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 2495-2502. 6953733 https://doi.org/10.1109/ECCE.2014.6953733
Yu, Chen Yen ; Fukushige, Takashi ; Athavale, Apoorva ; Gagas, Brent ; Akatsu, Kan ; Reigosa, David ; Lorenz, Robert D. / Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine. 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 2495-2502
@inproceedings{d49794ecbe414d8b8bc4b52b405da954,
title = "Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine",
abstract = "This paper focuses on zero/low speed magnetization state (MS) estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine (VTI-IPMSM). For VFI-IPMSMs, the knowledge of the MS is necessary to achieve loss minimizing control, since loss properties vary with MS. The MS can be estimated by measuring EMF, however, voltage sensors are not commonly used in standard drives. If a flux observer is used, accurate estimation is difficult at zero/low speed due to the diminishing EMF signal. To solve this issue, a superimposed high frequency (HF) injection method for MS estimation is proposed. Physically, higher MS implies a higher saturation condition which results in lower differential inductance. With a constant HF voltage injection, lower inductance (higher MS) results in a larger HF current response and vice versa. As a result, by imposing a HF voltage signal, the MS can be estimated through the HF current response. The proposed MS estimation methodology is evaluated experimentally with a fabricated fractional slot VFI-IPMSM and demonstrates effective MS estimation within 5 {\%} error.",
author = "Yu, {Chen Yen} and Takashi Fukushige and Apoorva Athavale and Brent Gagas and Kan Akatsu and David Reigosa and Lorenz, {Robert D.}",
year = "2014",
month = "11",
day = "11",
doi = "10.1109/ECCE.2014.6953733",
language = "English",
isbn = "9781479956982",
pages = "2495--2502",
booktitle = "2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - GEN

T1 - Zero/low speed magnet magnetization state estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine

AU - Yu, Chen Yen

AU - Fukushige, Takashi

AU - Athavale, Apoorva

AU - Gagas, Brent

AU - Akatsu, Kan

AU - Reigosa, David

AU - Lorenz, Robert D.

PY - 2014/11/11

Y1 - 2014/11/11

N2 - This paper focuses on zero/low speed magnetization state (MS) estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine (VTI-IPMSM). For VFI-IPMSMs, the knowledge of the MS is necessary to achieve loss minimizing control, since loss properties vary with MS. The MS can be estimated by measuring EMF, however, voltage sensors are not commonly used in standard drives. If a flux observer is used, accurate estimation is difficult at zero/low speed due to the diminishing EMF signal. To solve this issue, a superimposed high frequency (HF) injection method for MS estimation is proposed. Physically, higher MS implies a higher saturation condition which results in lower differential inductance. With a constant HF voltage injection, lower inductance (higher MS) results in a larger HF current response and vice versa. As a result, by imposing a HF voltage signal, the MS can be estimated through the HF current response. The proposed MS estimation methodology is evaluated experimentally with a fabricated fractional slot VFI-IPMSM and demonstrates effective MS estimation within 5 % error.

AB - This paper focuses on zero/low speed magnetization state (MS) estimation using high frequency injection for a fractional slot variable flux-intensifying interior permanent magnet synchronous machine (VTI-IPMSM). For VFI-IPMSMs, the knowledge of the MS is necessary to achieve loss minimizing control, since loss properties vary with MS. The MS can be estimated by measuring EMF, however, voltage sensors are not commonly used in standard drives. If a flux observer is used, accurate estimation is difficult at zero/low speed due to the diminishing EMF signal. To solve this issue, a superimposed high frequency (HF) injection method for MS estimation is proposed. Physically, higher MS implies a higher saturation condition which results in lower differential inductance. With a constant HF voltage injection, lower inductance (higher MS) results in a larger HF current response and vice versa. As a result, by imposing a HF voltage signal, the MS can be estimated through the HF current response. The proposed MS estimation methodology is evaluated experimentally with a fabricated fractional slot VFI-IPMSM and demonstrates effective MS estimation within 5 % error.

UR - http://www.scopus.com/inward/record.url?scp=84934342945&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84934342945&partnerID=8YFLogxK

U2 - 10.1109/ECCE.2014.6953733

DO - 10.1109/ECCE.2014.6953733

M3 - Conference contribution

AN - SCOPUS:84934342945

SN - 9781479956982

SP - 2495

EP - 2502

BT - 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014

PB - Institute of Electrical and Electronics Engineers Inc.

ER -