High-Resistance Fault Control in Permanent Magnet Synchronous Motors

Suneel Kumar Kommuri, Yonghyun Park, Sang Bin Lee

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


A difficult problem of a high-resistance (HR) connection for permanent magnet synchronous motor (PMSM) drives is investigated in this article. The presence of HR affects stator currents in such a way to deviate from their reference currents in the vector-control structure of the drive, which degrades the performance, reliability, and efficiency of the system. Unlike existing schemes, which are limited to detection of the HR connection, in this article, a current-control scheme based on a higher order sliding mode is designed to not only detect, but also provide fault-tolerant control simultaneously. The HR connection control is obtained by canceling extra dynamics (which are generated due to the HR connection) in the considered PMSM current model, which provides accurate tracking of actual current dynamics (d,q) to the reference currents. Moreover, the HR is also estimated from the robust sliding-mode control terms to monitor the asymmetry in the faulted phase. Simulation and experimental results on a three-phase laboratory test PMSM confirm the validity of the proposed scheme for various cases of stator phase resistances.

Original languageEnglish
Article number8889675
Pages (from-to)271-281
Number of pages11
JournalIEEE/ASME Transactions on Mechatronics
Issue number1
Publication statusPublished - 2020 Feb

Bibliographical note

Funding Information:
Manuscript received August 5, 2019; revised September 18, 2019; accepted October 29, 2019. Date of publication November 1, 2019; date of current version February 13, 2020. Recommended by Technical Editor S. K. Dwivedi. This work was supported in part by the Brain Korea 21 Plus Project in 2019 and in part by the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea under Grant 20174030201820. (Corresponding author: Sang Bin Lee.) S. K. Kommuri is with the School of Electronics Engineering, Kyungpook National University, Daegu 702-701, South Korea (e-mail: kommurisk@ieee.org).

Publisher Copyright:
© 2019 IEEE.


  • AC electric machines
  • condition monitoring
  • current control
  • high-resistance (HR) connection
  • permanent magnet synchronous motors (PMSMs)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering


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