Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array

This paper deals with the control of the direct-current to direct-current (DC/DC) energy conversion between high voltage and low voltage systems within a hybrid electric power-train structure intended to be used in articulated forestry tractor, also known as skidder. Electrical part of the hybrid po...

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Main Authors: Matija Krznar, Danijel Pavković, Mihael Cipek
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722023848
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author Matija Krznar
Danijel Pavković
Mihael Cipek
author_facet Matija Krznar
Danijel Pavković
Mihael Cipek
author_sort Matija Krznar
collection DOAJ
description This paper deals with the control of the direct-current to direct-current (DC/DC) energy conversion between high voltage and low voltage systems within a hybrid electric power-train structure intended to be used in articulated forestry tractor, also known as skidder. Electrical part of the hybrid power-train is modeled for the case of utilization of a parallel array of step-down (buck) DC/DC power converters as a bridge between the high and low voltage DC buses. Thus obtained models are used to derive the control laws for the primary-level (power converter voltage/current) control systems, and the secondary level (power allocation) control strategy, which are simulated within the MATLAB/SimulinkTMsoftware environment, and subsequently verified by means of laboratory experiments. Final results are also used to gain insights about the efficiency of the DC/DC conversion process and to formulate practical rules for parallelized DC/DC converter operation aimed at maximization of overall DC-to-DC power conversion efficiency.
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spelling doaj.art-18feebe3aa7348c49f00afc72ac20a952023-02-21T05:14:29ZengElsevierEnergy Reports2352-48472022-11-0181474114752Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter arrayMatija Krznar0Danijel Pavković1Mihael Cipek2Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, CroatiaCorresponding author.; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, CroatiaThis paper deals with the control of the direct-current to direct-current (DC/DC) energy conversion between high voltage and low voltage systems within a hybrid electric power-train structure intended to be used in articulated forestry tractor, also known as skidder. Electrical part of the hybrid power-train is modeled for the case of utilization of a parallel array of step-down (buck) DC/DC power converters as a bridge between the high and low voltage DC buses. Thus obtained models are used to derive the control laws for the primary-level (power converter voltage/current) control systems, and the secondary level (power allocation) control strategy, which are simulated within the MATLAB/SimulinkTMsoftware environment, and subsequently verified by means of laboratory experiments. Final results are also used to gain insights about the efficiency of the DC/DC conversion process and to formulate practical rules for parallelized DC/DC converter operation aimed at maximization of overall DC-to-DC power conversion efficiency.http://www.sciencedirect.com/science/article/pii/S2352484722023848Step-down DC–DC converterPower distribution systemHybrid skidderEfficiency analysis
spellingShingle Matija Krznar
Danijel Pavković
Mihael Cipek
Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
Energy Reports
Step-down DC–DC converter
Power distribution system
Hybrid skidder
Efficiency analysis
title Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
title_full Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
title_fullStr Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
title_full_unstemmed Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
title_short Direct-current electrical systems integration on a hybrid skidder using a parallelized step-down power converter array
title_sort direct current electrical systems integration on a hybrid skidder using a parallelized step down power converter array
topic Step-down DC–DC converter
Power distribution system
Hybrid skidder
Efficiency analysis
url http://www.sciencedirect.com/science/article/pii/S2352484722023848
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