A New Analytical Model for Voltage Stress Analysis at Neutral Point of Stator Windings

  • Huanyu Li
  • , Wenjun Zhu
  • , Chaohui Liu
  • , Xiangyu Sun
  • , Daniele De Gaetano
  • , Xiao Chen*
  • , Antonio Griffo
  • , Z. Q. Zhu
  • , Geraint W. Jewell
  • , Lianghui Yang
  • , Yiqing Yuan
  • , Han Yang
  • , Yiming Huang
  • *Corresponding author for this work

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

1 Citation (Scopus)

Abstract

For inverter-driven electrical machine systems, the transient overvoltage phenomenon has attracted widespread attention because of its potential to degrade the winding insulation causing premature failure. Most existing literature has proposed that the maximum voltage occurs at the machine terminals, while some recent papers reveal the maximum voltage may occur at the neutral point of stator windings under certain combinations of conditions and machine parameters. In this paper, a new analytical model is proposed to explain and predict the voltage stress at the neutral point of stator windings. The proposed model is more intuitive, requires less computation effort, while exhibits comparable accuracy to the existing model in literature. In addition, the proposed model is used to analyse the influencing factors of neutral point voltage.

Original languageEnglish
Title of host publication2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1364-1369
Number of pages6
ISBN (Electronic)9798350317589
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event26th International Conference on Electrical Machines and Systems, ICEMS 2023 - Zhuhai, China
Duration: 5 Nov 20238 Nov 2023

Publication series

Name2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023

Conference

Conference26th International Conference on Electrical Machines and Systems, ICEMS 2023
Country/TerritoryChina
CityZhuhai
Period5/11/238/11/23

Keywords

  • Analytical model
  • Insulation failure
  • Neutral point
  • Overvoltage

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