NDLI: A new current-source converter using a symmetric gate-commutated thyristor (SGCT)

Content Provider	IEEE Xplore Digital Library
Author	Zargari, N.R. Rizzo, S.C. Xiao, Y. Iwamoto, H. Satoh, K. Donlon, J.F.
Copyright Year	1972
Abstract	In recent years, extensive semiconductor development has gone into both bipolar and MOS structures for medium-voltage (MV) applications. However, the progression of MOS structures in MV applications has been difficult and the issues of module isolation, reliability, and d/spl nu//dt and motor/bearing life continue to limit its acceptance in these applications. A more suitable device structure and the natural choice for MV applications is the bipolar thyristor structure. The device that has been in use for many years, the gate-turn-off thyristor, is being replaced by the gate-commutated thyristor (GCT). So far, the GCT has been only thought of as fulfilling the needs for the voltage-source topology. However, the symmetric GCT (SGCT) is viable and has significant advantages when implemented in a pulsewidth-modulated current-source inverter (PWM-CSI). This paper describes the design and characteristics of an 800-A 6.5-kV SGCT and the effect of its implementation in a PWM-CSI. These effects include operation at a higher switching frequency, elimination/reduction and modification of the snubber circuitry, reduction in size of the passive components, and a major impact on the cost of the converter. The paper includes experimental results on a 4160-V 1250-hp PWM-CSI AC motor drive.
Sponsorship	IEEE Industry Applications Society
Starting Page	896
Ending Page	903
Page Count	8
File Size	353048
File Format	PDF
ISSN	00939994
Volume Number	37
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation Thyristors AC motors Pulse width modulation inverters Medium voltage Topology Pulse inverters Switching frequency Snubbers Circuits
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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 new current source converter using a symmetric gate commutated thyristor (SGCT)

Symmetric GTO and snubber component characterization in PWM current-source inverters

A unified modulation algorithm for voltage and current source inverters based on AC-AC matrix converter theory

The 10 kV IGCT-a new device for medium voltage drives

Neutral commutated soft switched current source converter

Optimal Pulsewidth Modulation for Current Source Inverters

A current source PWM inverter with actively commutated SCRs

Basic Forced-Commutated Inverters and Their Characteristics

A new modulation algorithm for voltage and current source inverters, based on AC-AC matrix converter theory

A new current-source converter using a symmetric gate-commutated thyristor (SGCT)

Similar Documents

A new current source converter using a symmetric gate commutated thyristor (SGCT)

Symmetric GTO and snubber component characterization in PWM current-source inverters

A unified modulation algorithm for voltage and current source inverters based on AC-AC matrix converter theory

The 10 kV IGCT-a new device for medium voltage drives

Neutral commutated soft switched current source converter

Optimal Pulsewidth Modulation for Current Source Inverters

A current source PWM inverter with actively commutated SCRs

Basic Forced-Commutated Inverters and Their Characteristics

A new modulation algorithm for voltage and current source inverters, based on AC-AC matrix converter theory

A new current-source converter using a symmetric gate-commutated thyristor (SGCT)