NDLI: SiC-based unidirectional solid-state transformer concepts for directly interfacing 400V DC to Medium-Voltage AC distribution systems

Content Provider	IEEE Xplore Digital Library
Author	Rothmund, D. Ortiz, G. Kolar, J.W.
Copyright Year	2014
Description	Author affiliation: Power Electron. Syst. Lab., ETH Zurich, Zurich, Switzerland (Rothmund, D.; Ortiz, G.; Kolar, J.W.)
Abstract	400 V DC distribution networks present a promising solution for supplying high-power DC loads such as information processing systems, transportation battery charging facilities and DC micro grids, among others. For these applications, high transmission efficiency, reliability and controllability are mandatory. With the current technology, these loads are fed from PWM rectifiers which are connected to the three-phase Low-Voltage (LV) distribution grid (400 V AC in Europe). The LV grid itself is supplied via Low-Frequency Transformers (LFT) from the Medium-Voltage (MV) grid, providing galvanic isolation and the required voltage step down. This paper presents three unidirectional AC/DC SiC-based Solid-State Transformer (SST) topologies with direct connection to the MV grid, which avoid the utilization of the aforementioned LFT by integrating a Medium-Frequency (MF) conversion stage, thus increasing the efficiency and power density of this supply system. The SST topologies are compared by means of a chip area-based comparative evaluation. Finally, the most suited among the presented topologies is Pareto-optimized, achieving a total MV AC to 400 V DC efficiency of 98.3 %. It is shown that the optimized SST features 40 % less overall losses compared to state-of-the-art solutions.
Starting Page	1
Ending Page	9
File Size	2709839
Page Count	9
File Format	PDF
ISBN	9781479931040
DOI	10.1109/INTLEC.2014.6972199
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-28
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MOSFET Silicon carbide Switching frequency Pulse width modulation Topology Semiconductor diodes Circuit faults
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A Study of AC-DC ZVS-PWM Boost Converters with Silicon Carbide Diodes

A self-powered bidirectional DC solid state circuit breaker using two normally-on SiC JFETs

Novel ZVZCS PWM DC-DC converters using one auxiliary switch

New ZVZCS PWM DC-DC converters with one auxiliary switch

A self-powered ultra-fast DC solid state circuit breaker using a normally-on SiC JFET

Effect of SiC schottky and Si junction diode reverse recovery on boost converter

A novel type soft switching PWM DC-DC converter with high voltage transformer link for magnetron drive

A simple DC-to-DC converter with the possibility of bipolar output voltage

Selective Dual Utility AC Voltage Link Soft-Switching PWM Controlled DC-DC Power Converter with High Frequency Transformer for 36V-350A DC Loads

SiC-based unidirectional solid-state transformer concepts for directly interfacing 400V DC to Medium-Voltage AC distribution systems

Similar Documents

A Study of AC-DC ZVS-PWM Boost Converters with Silicon Carbide Diodes

A self-powered bidirectional DC solid state circuit breaker using two normally-on SiC JFETs

Novel ZVZCS PWM DC-DC converters using one auxiliary switch

New ZVZCS PWM DC-DC converters with one auxiliary switch

A self-powered ultra-fast DC solid state circuit breaker using a normally-on SiC JFET

Effect of SiC schottky and Si junction diode reverse recovery on boost converter

A novel type soft switching PWM DC-DC converter with high voltage transformer link for magnetron drive

A simple DC-to-DC converter with the possibility of bipolar output voltage

Selective Dual Utility AC Voltage Link Soft-Switching PWM Controlled DC-DC Power Converter with High Frequency Transformer for 36V-350A DC Loads

SiC-based unidirectional solid-state transformer concepts for directly interfacing 400V DC to Medium-Voltage AC distribution systems