A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors

Yuzhuo Lu; Quntao An; Mengji Zhao; Hongwei Wang

doi:10.1109/CIEEC69682.2026.11572536

A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors

Yuzhuo Lu^*
, Quntao An
, Mengji Zhao
, Hongwei Wang

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology
Harbin University of Science and Technology

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

Abstract

This paper proposes a short-circuit fault diagnosis method based on average current errors for the permanent magnet synchronous motor (PMSM) fed by the current source inverter (CSI). The method is simple and easy to implement, which only requires the feedback motor currents and does not need additional sensors or detection circuits. The algorithm requires calculating the average current error between the average values of the reference current and the feedback current in one cycle, and the ratio of the error to the average absolute value of the reference current is used as the diagnostic variable. Then, two current thresholds are set to achieve accurate location of single switch or double switch short-circuit fault. Finally, an experimental platform is built to verify the effectiveness and the robustness of the proposed diagnosis algorithm.

Original language	English
Title of host publication	Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	991-996
Number of pages	6
ISBN (Electronic)	9798331549558
DOIs	https://doi.org/10.1109/CIEEC69682.2026.11572536
State	Published - 2026
Externally published	Yes
Event	9th International Electrical and Energy Conference, CIEEC 2026 - Tianjin, China Duration: 15 May 2026 → 17 May 2026

Publication series

Name	Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026

Conference

Conference	9th International Electrical and Energy Conference, CIEEC 2026
Country/Territory	China
City	Tianjin
Period	15/05/26 → 17/05/26

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Average current error
current source inverter (CSI)
fault diagnosis
permanent magnet synchronous motor (PMSM)
short-circuit fault

Access to Document

10.1109/CIEEC69682.2026.11572536

Cite this

Lu, Y., An, Q., Zhao, M., & Wang, H. (2026). A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors. In Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026 (pp. 991-996). (Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CIEEC69682.2026.11572536

Lu, Yuzhuo ; An, Quntao ; Zhao, Mengji et al. / A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors. Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026. Institute of Electrical and Electronics Engineers Inc., 2026. pp. 991-996 (Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026).

@inproceedings{93d88db2162d452bbb308544ea144504,

title = "A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors",

abstract = "This paper proposes a short-circuit fault diagnosis method based on average current errors for the permanent magnet synchronous motor (PMSM) fed by the current source inverter (CSI). The method is simple and easy to implement, which only requires the feedback motor currents and does not need additional sensors or detection circuits. The algorithm requires calculating the average current error between the average values of the reference current and the feedback current in one cycle, and the ratio of the error to the average absolute value of the reference current is used as the diagnostic variable. Then, two current thresholds are set to achieve accurate location of single switch or double switch short-circuit fault. Finally, an experimental platform is built to verify the effectiveness and the robustness of the proposed diagnosis algorithm.",

keywords = "Average current error, current source inverter (CSI), fault diagnosis, permanent magnet synchronous motor (PMSM), short-circuit fault",

author = "Yuzhuo Lu and Quntao An and Mengji Zhao and Hongwei Wang",

note = "Publisher Copyright: {\textcopyright} 2026 IEEE.; 9th International Electrical and Energy Conference, CIEEC 2026 ; Conference date: 15-05-2026 Through 17-05-2026",

year = "2026",

doi = "10.1109/CIEEC69682.2026.11572536",

language = "英语",

series = "Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026",

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

pages = "991--996",

booktitle = "Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026",

address = "美国",

}

Lu, Y, An, Q, Zhao, M & Wang, H 2026, A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors. in Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026. Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026, Institute of Electrical and Electronics Engineers Inc., pp. 991-996, 9th International Electrical and Energy Conference, CIEEC 2026, Tianjin, China, 15/05/26. https://doi.org/10.1109/CIEEC69682.2026.11572536

A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors. / Lu, Yuzhuo; An, Quntao; Zhao, Mengji et al.
Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026. Institute of Electrical and Electronics Engineers Inc., 2026. p. 991-996 (Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026).

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

TY - GEN

T1 - A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors

AU - Lu, Yuzhuo

AU - An, Quntao

AU - Zhao, Mengji

AU - Wang, Hongwei

PY - 2026

Y1 - 2026

N2 - This paper proposes a short-circuit fault diagnosis method based on average current errors for the permanent magnet synchronous motor (PMSM) fed by the current source inverter (CSI). The method is simple and easy to implement, which only requires the feedback motor currents and does not need additional sensors or detection circuits. The algorithm requires calculating the average current error between the average values of the reference current and the feedback current in one cycle, and the ratio of the error to the average absolute value of the reference current is used as the diagnostic variable. Then, two current thresholds are set to achieve accurate location of single switch or double switch short-circuit fault. Finally, an experimental platform is built to verify the effectiveness and the robustness of the proposed diagnosis algorithm.

AB - This paper proposes a short-circuit fault diagnosis method based on average current errors for the permanent magnet synchronous motor (PMSM) fed by the current source inverter (CSI). The method is simple and easy to implement, which only requires the feedback motor currents and does not need additional sensors or detection circuits. The algorithm requires calculating the average current error between the average values of the reference current and the feedback current in one cycle, and the ratio of the error to the average absolute value of the reference current is used as the diagnostic variable. Then, two current thresholds are set to achieve accurate location of single switch or double switch short-circuit fault. Finally, an experimental platform is built to verify the effectiveness and the robustness of the proposed diagnosis algorithm.

KW - Average current error

KW - current source inverter (CSI)

KW - fault diagnosis

KW - permanent magnet synchronous motor (PMSM)

KW - short-circuit fault

UR - https://www.scopus.com/pages/publications/105044609338

U2 - 10.1109/CIEEC69682.2026.11572536

DO - 10.1109/CIEEC69682.2026.11572536

M3 - 会议稿件

AN - SCOPUS:105044609338

T3 - Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026

SP - 991

EP - 996

BT - Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th International Electrical and Energy Conference, CIEEC 2026

Y2 - 15 May 2026 through 17 May 2026

ER -

Lu Y, An Q, Zhao M, Wang H. A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors. In Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026. Institute of Electrical and Electronics Engineers Inc. 2026. p. 991-996. (Proceedings of 2026 IEEE 9th International Electrical and Energy Conference, CIEEC 2026). doi: 10.1109/CIEEC69682.2026.11572536

A Short-Circuit Fault Diagnosis Algorithm for the PMSM Fed by the CSI Based on Average Current Errors

Abstract

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UN SDGs

Keywords

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