Automated DC Substation Short-Current Evaluation

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Kaunas University of Technology, Lithuania

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The University of Sydney, Australia

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Technical University of Cluj Napoca, Romania

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Slovak University of Technology, Slovakia

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The University of Texas at Arlington, United States

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University of Brest, France

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University of Defence, Czech Republic

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UPC Broadband Slovakia, Slovakia

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University of Zilina, Slovakia

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Brno University of Technology, Czech Republic

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Brno University of Technology, Czech Republic

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National Taiwan University of Science and Technology, Taiwan, Province of China

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Ankara University, Turkey

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Institute of Medical Technology and Equipment, Poland

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VSB - Technical University of Ostrava, Czech Republic

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Academy of Sciences of the Czech Republic, Czech Republic

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University of Defence, Czech Republic

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University of Hradec Kralove, Czech Republic

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Technical University of Radom, Poland

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Technical University of Kosice, Slovakia

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Hongik University, Korea

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Buryat State University, Russia

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University of Huddersfield, United Kingdom

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Ton Duc Thang University, Vietnam

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Ca’ Foscari University of Venice, Italy

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University of New Haven, United States of America

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Ton Duc Thang University, Vietnam

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Ton Duc Thang University, Vietnam

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VSB - Technical University of Ostrava, Czech Republic

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Wroclaw University of Science and Technology, Poland

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The University of Edinburgh, United Kingdom

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Technical University of Cluj Napoca, Romania

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Posts and Telecommunications Institute of Technology, Ho Chi Minh City, Vietnam

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Henan Polytechnic University, China

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Ton Duc Thang University, Vietnam

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University of Pardubice, Czech Republic

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Delhi Technological University, India

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Ho Chi Minh City University of Technology and Education, Vietnam

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DIMES Department of University of Calabria, Italy

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Henan Polytechnic University, China

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Ho Chi Minh City University of Transport, Vietnam

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Ho Chi Minh City University of Transport, Vietnam

Phu Tran Tin
Ton Duc Thang University, Vietnam

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Automated DC Substation Short-Current Evaluation

Petr Dohnal, Ferdinand Urban, Jiri Valenta

DOI:

Abstract

Technical praxis has no easy-to-use standardized method for a DC short-current evaluation. For a correct rating of rectifying blocks (diodes) and input and output current-carrying cables is need to know short-current parameters. The current flow in the substation is derived by commutation of rectifying blocks, which define current of transformers and DC part. For evaluating exists a semi empiric formula, that has a delimited relevance to small power range up to 50 kWatts of output power. New way of evaluation of short current is based on simulation of simplified substation model using the capabilities of DYNAST simulation program, or other dynamic equation solver based on numerical method, like Matlab.