Comprehensive Analysis on Rotor Vibration Characteristics Based on a Novel Dynamic Stator Interturn Short Circuit Model of Synchronous Generator

Yu Ling He, Meng Ya Jiang, Kai Sun, Ming Hao Qiu, Ming Xing Xu, Na Zhang, Min He, Tie Jun Ci, David Gerada

Research output: Journal PublicationArticlepeer-review

3 Citations (Scopus)

Abstract

Besides the static stator interturn short circuit (SSISC), the dynamic stator interturn short circuit (DSISC) may also occur in synchronous generators. However, at present, there is no effective model which can effectively analyze the generator characteristics under DSISC and identify the fault. To address this issue, this paper creatively presents a novel analysis model of DSISC for the first time. The degree and the position of short circuit are taken into consideration. Besides, the rotor vibration characteristics are comprehensively analyzed and compared under DSISC and SSISC. Further, the finite element (FE) calculation and the experiments are carried out on the CS-5 prototype generator. Meanwhile, the rotor mechanical response caused by the unbalanced magnetic pull (UMP) is obtained. The validity of the proposed model is confirmed by FE calculation and experiments. This paper provides the theoretical support for the diagnosis of DSISC fault in synchronous generators.

Original languageEnglish
Pages (from-to)1658-1672
Number of pages15
JournalIEEE Transactions on Energy Conversion
Volume39
Issue number3
DOIs
Publication statusPublished - 2024

Keywords

  • dynamic stator interturn short circuit
  • Synchronous generator
  • unbalanced magnetic pull
  • vibration response

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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