A Harmonic Model of EMU Based on Measured Data for Power Quality Pre-assessment
Authors: 
Wei Wei, Lin Xu, Chang Liu, Caiyuan Zhang, Lei Ai, Dan Jin, Xueyuan Liu, Hua YangAuthors Info & Claims
Wei Wei, Lin Xu, Chang Liu, Caiyuan Zhang, Lei Ai, Dan Jin, Xueyuan Liu, Hua YangAuthors Info & ClaimsArticle No.: 72, Pages 1 - 7
Abstract
The electric locomotives of electrified railway are non-linear loads, injecting harmonics into the power system and deteriorating the power quality. In order to assess the impact of harmonics on power quality and provide the basis for harmonic suppression, a harmonic model combining with polynomial model and probability model is proposed in this paper. First, the paper derives the formula of current harmonics, illustrating that active power and grid-side voltage are the key factors affecting harmonics. Then, based on the measured data of CRH6 EMU, the influence of active power, reactive power, power factor, and grid-side voltage on harmonics in traction and regenerative braking conditions is investigated respectively. After that, a harmonic model combining polynomial model and probability model is proposed. Finally, the model proves to be effective by measured data.
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Published In
May 2021
2053 pages
ISBN:9781450390200
DOI:10.1145/3469213
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Association for Computing Machinery
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Published: 18 August 2021
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ICAIIS 2021
ICAIIS 2021: 2021 2nd International Conference on Artificial Intelligence and Information Systems
May 28 - 30, 2021
Chongqing, China
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