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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/7560
Title: Multiphase high-frequency isolated DC-DC converter for industrial applications
Authors: Maurya R.
Srivastava S.P.
Agarwal, Pramod
Published in: International Journal of Emerging Electric Power Systems
Abstract: Industrial applications such as welding, plasma cutting, and surface hardening require a large DC current at low voltage. In such applications, the rating of power supply varies from few kilowatts to hundreds of kilowatts. The power supply employs in such applications particularly in arc welding process is expected to operate from open-circuit (no-load) to short-circuit (when the electrode sticks to the workpiece for a short span of time) quickly. In this paper, high-frequency isolated multiphase DC-DC converter is proposed which is well suited for aforementioned applications. Based on mathematical analysis, a simulation study with 5 kW, 5 V/1,000 A proposed model is carried out using Simulink block set and Sim Power System tool box and its performances are evaluated under symmetrical control methods. To verify the simulation results, scaled prototype model of rating 1.5 V/100 A is developed and tested with aforementioned control method under different operating conditions. In comparison with conventional welding power supply employed in many industries, the performance of proposed converter is improved significantly in terms of size and weight, efficiency and dynamic response. © 2014 Walter de Gruyter GmbH, Berlin / Boston.
Citation: International Journal of Emerging Electric Power Systems (2014), 15(1): 35-43
URI: https://doi.org/10.1515/ijeeps-2013-0146
http://repository.iitr.ac.in/handle/123456789/7560
Issue Date: 2014
Keywords: DC-DC converter
Interleaved control techniques
Line frequency isolated converter
Three-phase transformer and its connections
ISSN: 21945756
Author Scopus IDs: 56334002000
7403307033
9733363000
Author Affiliations: Maurya, R., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India, Department of Electrical Engineering, S.V. National Institute of Technology, Surat, Gujarat 395007, India
Srivastava, S.P., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
Agarwal, P., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
Corresponding Author: Maurya, R.; Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India; email: rmaurya@eed.svnit.ac.in
Appears in Collections:Journal Publications [EE]

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