Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle

Aiming at problems of low voltage gain, low power density and low conversion efficiency of traditional Z-source inverter or single-switch inductor Z-source inverter used in hybrid energy storage system of mine-used electric vehicle, a novel Z-source inverter was proposed. Modular switch coupled indu...

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Main Authors: WU Zhen, CHEN Jing, DANG Jiao
Format: Article
Language:zho
Published: Editorial Department of Industry and Mine Automation 2019-09-01
Series:Gong-kuang zidonghua
Subjects:
Online Access:http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2019040091
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author WU Zhen
CHEN Jing
DANG Jiao
author_facet WU Zhen
CHEN Jing
DANG Jiao
author_sort WU Zhen
collection DOAJ
description Aiming at problems of low voltage gain, low power density and low conversion efficiency of traditional Z-source inverter or single-switch inductor Z-source inverter used in hybrid energy storage system of mine-used electric vehicle, a novel Z-source inverter was proposed. Modular switch coupled inductance units based on array magnetic integration technology is used to replace inductance of traditional Z-source inverter, so as to improve power density and voltage gain. By introducing auxiliary soft switch branch to realize zero-voltage switch of power devices, conversion efficiency is improved. Hybrid energy storage system based on the novel Z-source inverter was modeled. Through pole analysis, one pair of conjugated poles causing the system to oscillate and frequency of system oscillation were found, current controller parameters are designed with the model, and design criteria of proportional and integral parameters of current controller were derived. The simulation and experimental results verify correctness of the design criteria of the current controller.
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spelling doaj.art-f92658a5ccf84f61ae3d534f399b25292022-12-21T18:35:40ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2019-09-014599298.10.13272/j.issn.1671-251x.2019040091Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicleWU ZhenCHEN JingDANG JiaoAiming at problems of low voltage gain, low power density and low conversion efficiency of traditional Z-source inverter or single-switch inductor Z-source inverter used in hybrid energy storage system of mine-used electric vehicle, a novel Z-source inverter was proposed. Modular switch coupled inductance units based on array magnetic integration technology is used to replace inductance of traditional Z-source inverter, so as to improve power density and voltage gain. By introducing auxiliary soft switch branch to realize zero-voltage switch of power devices, conversion efficiency is improved. Hybrid energy storage system based on the novel Z-source inverter was modeled. Through pole analysis, one pair of conjugated poles causing the system to oscillate and frequency of system oscillation were found, current controller parameters are designed with the model, and design criteria of proportional and integral parameters of current controller were derived. The simulation and experimental results verify correctness of the design criteria of the current controller.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2019040091mine-used electric vehiclehybrid energy storage systemz-source invertercurrent controlswitch coupled inductancearray magnetic integrationsoft switch
spellingShingle WU Zhen
CHEN Jing
DANG Jiao
Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
Gong-kuang zidonghua
mine-used electric vehicle
hybrid energy storage system
z-source inverter
current control
switch coupled inductance
array magnetic integration
soft switch
title Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
title_full Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
title_fullStr Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
title_full_unstemmed Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
title_short Current control of Z-source inverter for hybrid energy storage system of mine-used electric vehicle
title_sort current control of z source inverter for hybrid energy storage system of mine used electric vehicle
topic mine-used electric vehicle
hybrid energy storage system
z-source inverter
current control
switch coupled inductance
array magnetic integration
soft switch
url http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2019040091
work_keys_str_mv AT wuzhen currentcontrolofzsourceinverterforhybridenergystoragesystemofmineusedelectricvehicle
AT chenjing currentcontrolofzsourceinverterforhybridenergystoragesystemofmineusedelectricvehicle
AT dangjiao currentcontrolofzsourceinverterforhybridenergystoragesystemofmineusedelectricvehicle