A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications

Capacitive power transfer (CPT) is a promising method to solve the problems caused by the traditional Pantograph-catenary contact power supply for railway applications. In contrast, the CPT system suffers a broken risk because of the small coupling capacitor. This paper has analyzed the CPT coupler’...

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Main Authors: Jianying Liang, Donghua Wu, Jin Yu
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/2/153
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author Jianying Liang
Donghua Wu
Jin Yu
author_facet Jianying Liang
Donghua Wu
Jin Yu
author_sort Jianying Liang
collection DOAJ
description Capacitive power transfer (CPT) is a promising method to solve the problems caused by the traditional Pantograph-catenary contact power supply for railway applications. In contrast, the CPT system suffers a broken risk because of the small coupling capacitor. This paper has analyzed the CPT coupler’s voltage distributions for dynamic CPT systems when high power is required in real railway applications. The triangle relationship among the coupler voltages is derived. The circuit of the CPT system to accolated the coupler voltage is analyzed. Then, the compensation parameters are given. With the adopted LCLC-CL topology, the design process is presented by considering the coupler voltages. An experimental setup is conducted to validate the proposed design method. The experimental results show that the system can achieve 3 kW output power with 92.46% DC-DC efficiency and the voltage distribution aggress well with the designed values.
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spelling doaj.art-7cd64c3b513e48f2ad8cf8d23f1754dd2023-12-03T12:54:06ZengMDPI AGElectronics2079-92922021-01-0110215310.3390/electronics10020153A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway ApplicationsJianying Liang0Donghua Wu1Jin Yu2CRRC Qingdao Sifang Rolling Stock Co., Ltd., Qingdao 266000, ChinaCRRC Qingdao Sifang Rolling Stock Co., Ltd., Qingdao 266000, ChinaCRRC Qingdao Sifang Rolling Stock Co., Ltd., Qingdao 266000, ChinaCapacitive power transfer (CPT) is a promising method to solve the problems caused by the traditional Pantograph-catenary contact power supply for railway applications. In contrast, the CPT system suffers a broken risk because of the small coupling capacitor. This paper has analyzed the CPT coupler’s voltage distributions for dynamic CPT systems when high power is required in real railway applications. The triangle relationship among the coupler voltages is derived. The circuit of the CPT system to accolated the coupler voltage is analyzed. Then, the compensation parameters are given. With the adopted LCLC-CL topology, the design process is presented by considering the coupler voltages. An experimental setup is conducted to validate the proposed design method. The experimental results show that the system can achieve 3 kW output power with 92.46% DC-DC efficiency and the voltage distribution aggress well with the designed values.https://www.mdpi.com/2079-9292/10/2/153capacitive power transferwireless power transferhigh power demandrailway applicationsvoltage distribution
spellingShingle Jianying Liang
Donghua Wu
Jin Yu
A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
Electronics
capacitive power transfer
wireless power transfer
high power demand
railway applications
voltage distribution
title A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
title_full A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
title_fullStr A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
title_full_unstemmed A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
title_short A Design Method of Compensation Circuit for High-Power Dynamic Capacitive Power Transfer System Considering Coupler Voltage Distribution for Railway Applications
title_sort design method of compensation circuit for high power dynamic capacitive power transfer system considering coupler voltage distribution for railway applications
topic capacitive power transfer
wireless power transfer
high power demand
railway applications
voltage distribution
url https://www.mdpi.com/2079-9292/10/2/153
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