Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics

Jincheng Yu; Chunhua Liu; Yixiao Luo; Xueqing Wang; Zheng Wang

doi:10.1109/ECCE.2018.8558045

Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics

Jincheng Yu
, Chunhua Liu^*
, Yixiao Luo
, Xueqing Wang
, Zheng Wang

^*Corresponding author for this work

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

1 Scopus citations

Abstract

This paper proposes an efficiency improvement operation of a new double-stator permanent magnet vernier (DS-PMV) machine for direct-drive robotics. The high torque density, low power loss and low torque ripple are expected for the direct-drive machines in robotic application. First, the staggered-teeth and electric offset (ST-EO) modulations are artfully incorporated for the torque density improvement and torque ripple reduction. By this mean, the average torque increases from 27.1 Nm to 43.2 Nm, and torque ripple decreases from 21.7% to 3.5%. Second, the model predictive torque control (MPTC) with maximum torque per ampere (MTPA) operation is integrated for fast dynamic response and power loss reduction. In this way, under the rated load condition, the armature current decreases by 20% and the copper loss reduces by 36%. Also, the efficiency of the proposed DS-PMV machine is up to 86%, which can be a preferred alternative for the direct-drive robotic application. Finally, the demonstration is performed to verify the validation of the proposed high-efficiency DS-PMV machine.

Original language	English
Title of host publication	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	4351-4358
Number of pages	8
ISBN (Electronic)	9781479973118
DOIs	https://doi.org/10.1109/ECCE.2018.8558045
State	Published - 3 Dec 2018
Externally published	Yes
Event	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States Duration: 23 Sep 2018 → 27 Sep 2018

Publication series

Name	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/Territory	United States
City	Portland
Period	23/09/18 → 27/09/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Direct drive
Double-stator machine
Electric offset
MPTC
MTPA
Permanent-magnet machine
Predictive control
Robotics
Vernier machine

Access to Document

10.1109/ECCE.2018.8558045

Cite this

Yu, J., Liu, C., Luo, Y., Wang, X., & Wang, Z. (2018). Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics. In 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018 (pp. 4351-4358). Article 8558045 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2018.8558045

@inproceedings{2810adf0283c4c2d807a08abe72534a8,

title = "Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics",

abstract = "This paper proposes an efficiency improvement operation of a new double-stator permanent magnet vernier (DS-PMV) machine for direct-drive robotics. The high torque density, low power loss and low torque ripple are expected for the direct-drive machines in robotic application. First, the staggered-teeth and electric offset (ST-EO) modulations are artfully incorporated for the torque density improvement and torque ripple reduction. By this mean, the average torque increases from 27.1 Nm to 43.2 Nm, and torque ripple decreases from 21.7\% to 3.5\%. Second, the model predictive torque control (MPTC) with maximum torque per ampere (MTPA) operation is integrated for fast dynamic response and power loss reduction. In this way, under the rated load condition, the armature current decreases by 20\% and the copper loss reduces by 36\%. Also, the efficiency of the proposed DS-PMV machine is up to 86\%, which can be a preferred alternative for the direct-drive robotic application. Finally, the demonstration is performed to verify the validation of the proposed high-efficiency DS-PMV machine.",

keywords = "Direct drive, Double-stator machine, Electric offset, MPTC, MTPA, Permanent-magnet machine, Predictive control, Robotics, Vernier machine",

author = "Jincheng Yu and Chunhua Liu and Yixiao Luo and Xueqing Wang and Zheng Wang",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 ; Conference date: 23-09-2018 Through 27-09-2018",

year = "2018",

month = dec,

day = "3",

doi = "10.1109/ECCE.2018.8558045",

language = "英语",

series = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "4351--4358",

booktitle = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",

address = "美国",

}

Yu, J, Liu, C, Luo, Y, Wang, X & Wang, Z 2018, Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics. in 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018., 8558045, 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018, Institute of Electrical and Electronics Engineers Inc., pp. 4351-4358, 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018, Portland, United States, 23/09/18. https://doi.org/10.1109/ECCE.2018.8558045

Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics. / Yu, Jincheng; Liu, Chunhua; Luo, Yixiao et al.
2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 4351-4358 8558045 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018).

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

TY - GEN

T1 - Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics

AU - Yu, Jincheng

AU - Liu, Chunhua

AU - Luo, Yixiao

AU - Wang, Xueqing

AU - Wang, Zheng

PY - 2018/12/3

Y1 - 2018/12/3

N2 - This paper proposes an efficiency improvement operation of a new double-stator permanent magnet vernier (DS-PMV) machine for direct-drive robotics. The high torque density, low power loss and low torque ripple are expected for the direct-drive machines in robotic application. First, the staggered-teeth and electric offset (ST-EO) modulations are artfully incorporated for the torque density improvement and torque ripple reduction. By this mean, the average torque increases from 27.1 Nm to 43.2 Nm, and torque ripple decreases from 21.7% to 3.5%. Second, the model predictive torque control (MPTC) with maximum torque per ampere (MTPA) operation is integrated for fast dynamic response and power loss reduction. In this way, under the rated load condition, the armature current decreases by 20% and the copper loss reduces by 36%. Also, the efficiency of the proposed DS-PMV machine is up to 86%, which can be a preferred alternative for the direct-drive robotic application. Finally, the demonstration is performed to verify the validation of the proposed high-efficiency DS-PMV machine.

AB - This paper proposes an efficiency improvement operation of a new double-stator permanent magnet vernier (DS-PMV) machine for direct-drive robotics. The high torque density, low power loss and low torque ripple are expected for the direct-drive machines in robotic application. First, the staggered-teeth and electric offset (ST-EO) modulations are artfully incorporated for the torque density improvement and torque ripple reduction. By this mean, the average torque increases from 27.1 Nm to 43.2 Nm, and torque ripple decreases from 21.7% to 3.5%. Second, the model predictive torque control (MPTC) with maximum torque per ampere (MTPA) operation is integrated for fast dynamic response and power loss reduction. In this way, under the rated load condition, the armature current decreases by 20% and the copper loss reduces by 36%. Also, the efficiency of the proposed DS-PMV machine is up to 86%, which can be a preferred alternative for the direct-drive robotic application. Finally, the demonstration is performed to verify the validation of the proposed high-efficiency DS-PMV machine.

KW - Direct drive

KW - Double-stator machine

KW - Electric offset

KW - MPTC

KW - MTPA

KW - Permanent-magnet machine

KW - Predictive control

KW - Robotics

KW - Vernier machine

UR - https://www.scopus.com/pages/publications/85060298946

U2 - 10.1109/ECCE.2018.8558045

DO - 10.1109/ECCE.2018.8558045

M3 - 会议稿件

AN - SCOPUS:85060298946

T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

SP - 4351

EP - 4358

BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018

Y2 - 23 September 2018 through 27 September 2018

ER -

Yu J, Liu C, Luo Y, Wang X, Wang Z. Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics. In 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 4351-4358. 8558045. (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018). doi: 10.1109/ECCE.2018.8558045

Efficiency Improvement of a Double-Stator Permanent Magnet Vernier Machine for Direct-Drive Robotics

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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