Study on resonance characteristic of continuous co‐phase traction power supply system

Abstract In order to solve the power quality problems and eliminate the neutral sections in the railway, the implementation of the continuous co‐phase traction power supply system (CCTPSS) is the development trend of the future. However, various parameters of the compensator in CCTPSS have a huge im...

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Main Authors: Fan Zhong, Shaofeng Xie
Format: Article
Language:English
Published: Wiley 2023-02-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.12705
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author Fan Zhong
Shaofeng Xie
author_facet Fan Zhong
Shaofeng Xie
author_sort Fan Zhong
collection DOAJ
description Abstract In order to solve the power quality problems and eliminate the neutral sections in the railway, the implementation of the continuous co‐phase traction power supply system (CCTPSS) is the development trend of the future. However, various parameters of the compensator in CCTPSS have a huge impact on the resonance, which will possibly change the original resonance characteristic of the railway. Therefore, the parameters design of the compensator has become a difficult problem to be solved. An optimization mode method is proposed in this paper to obtain the influence of the compensator on the resonance characteristic of CCTPSS and the optimal solution of each parameter is obtained with the goal of suppressing resonance and minimizing the cost. Firstly, the impedance analysis and transfer function analysis are used to establish models for CCTPSS. It is found that the equivalent harmonic impedance of the traction substation decreases after adding the compensator, which will inevitably cause the resonance frequency to increase. By comparing the resonance points of the original traction power supply system (TPSS) and CCTPSS, the results show that the parameters of the compensator have a greater influence on the resonance point in CCTPSS. At last, taking the CCTPSS based on LCL‐type reactive power comprehensive compensator (RPCC) as an example to carry out the optimization mode method, the result proves that this method is not only beneficial to the suppression of harmonic resonance, but also helpful for reducing the cost of the RPCC.
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spelling doaj.art-5267b23290d24a3b8f5723d0546b51552023-02-16T03:26:08ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-02-0117477578910.1049/gtd2.12705Study on resonance characteristic of continuous co‐phase traction power supply systemFan Zhong0Shaofeng Xie1School of Electrical Engineering Southwest Jiaotong University Chengdu People's Republic of ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu People's Republic of ChinaAbstract In order to solve the power quality problems and eliminate the neutral sections in the railway, the implementation of the continuous co‐phase traction power supply system (CCTPSS) is the development trend of the future. However, various parameters of the compensator in CCTPSS have a huge impact on the resonance, which will possibly change the original resonance characteristic of the railway. Therefore, the parameters design of the compensator has become a difficult problem to be solved. An optimization mode method is proposed in this paper to obtain the influence of the compensator on the resonance characteristic of CCTPSS and the optimal solution of each parameter is obtained with the goal of suppressing resonance and minimizing the cost. Firstly, the impedance analysis and transfer function analysis are used to establish models for CCTPSS. It is found that the equivalent harmonic impedance of the traction substation decreases after adding the compensator, which will inevitably cause the resonance frequency to increase. By comparing the resonance points of the original traction power supply system (TPSS) and CCTPSS, the results show that the parameters of the compensator have a greater influence on the resonance point in CCTPSS. At last, taking the CCTPSS based on LCL‐type reactive power comprehensive compensator (RPCC) as an example to carry out the optimization mode method, the result proves that this method is not only beneficial to the suppression of harmonic resonance, but also helpful for reducing the cost of the RPCC.https://doi.org/10.1049/gtd2.12705harmonic analysisrailway electrificationresonance
spellingShingle Fan Zhong
Shaofeng Xie
Study on resonance characteristic of continuous co‐phase traction power supply system
IET Generation, Transmission & Distribution
harmonic analysis
railway electrification
resonance
title Study on resonance characteristic of continuous co‐phase traction power supply system
title_full Study on resonance characteristic of continuous co‐phase traction power supply system
title_fullStr Study on resonance characteristic of continuous co‐phase traction power supply system
title_full_unstemmed Study on resonance characteristic of continuous co‐phase traction power supply system
title_short Study on resonance characteristic of continuous co‐phase traction power supply system
title_sort study on resonance characteristic of continuous co phase traction power supply system
topic harmonic analysis
railway electrification
resonance
url https://doi.org/10.1049/gtd2.12705
work_keys_str_mv AT fanzhong studyonresonancecharacteristicofcontinuouscophasetractionpowersupplysystem
AT shaofengxie studyonresonancecharacteristicofcontinuouscophasetractionpowersupplysystem