NDLI: Decoupled control techniques for dual flying capacitor bridge power supplies of large superconductive magnets

Content Provider	IEEE Xplore Digital Library
Author	Ehsani, M. Hozhabri, A. Kustom, R.
Copyright Year	1965
Abstract	The dual flying capacitor (DFC) was developed in 1976 as a method of supplying efficient bilateral power to large superconductive magnets. This power supply concept uses a second superconductive coil for energy storage. Large reversable power demands of the load magnet are met by energy exchange between the storage and load coils, through the DFC bridge. This paper will show that the DFC circuit can be decomposed into two elementary single flying capacitor (SLC) circuits which can be controlled independently. The discovery of this decoupled control concept is the origin of several new control strategies which significantly improve the performance of DFC power supplies, microcomputer controllers containing the decoupled control algorithm were tested on a DFC system simulator. The results show that time optimal load coil current and voltage control is now achievable by a robust bang-bang control technique. Furthermore, load coil current ripple and voltage spectrum can be independently controlled, while following an arbitrary reference signal. The DFC bridge, with the decoupled controllers, is a high performance power supply candidate for superconductive magnets of fusion reactors, particle accelerators and other systems.
Sponsorship	IEEE Magnetics Society
Starting Page	591
Ending Page	594
Page Count	4
File Size	356898
File Format	PDF
ISSN	00189464
Volume Number	23
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power capacitors Power supplies Superconductivity Magnets Digital-to-frequency converters Superconducting coils Bridge circuits Energy storage Voltage control Power demand
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials 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 one-phase dual converter for two quadrant power control of superconducting magnets

Feasibility Study on Current Source Power Conversion for Superconducting Magnets Using Series Compensated Thyristor Converters

Three-Phase Energy Transfer Circuit with Superconducting Energy Storage Coils

Voltage detection and magnet protection

A Bilateral Power Supply with Energy Storage Buffer for the Superconductive Coils of Large Particle Accelerators

Experimental study on energy transfer between two superconducting magnets with voltage ripple reduction control

Integrated high-quality rectifier-regulators

Research on power conditioning systems for superconductive magnetic energy storage (SMES)

Active Capacitor Voltage Balancing in Single-Phase Flying-Capacitor Multilevel Power Converters

Decoupled control techniques for dual flying capacitor bridge power supplies of large superconductive magnets

Similar Documents

A one-phase dual converter for two quadrant power control of superconducting magnets

Feasibility Study on Current Source Power Conversion for Superconducting Magnets Using Series Compensated Thyristor Converters

Three-Phase Energy Transfer Circuit with Superconducting Energy Storage Coils

Voltage detection and magnet protection

A Bilateral Power Supply with Energy Storage Buffer for the Superconductive Coils of Large Particle Accelerators

Experimental study on energy transfer between two superconducting magnets with voltage ripple reduction control

Integrated high-quality rectifier-regulators

Research on power conditioning systems for superconductive magnetic energy storage (SMES)

Active Capacitor Voltage Balancing in Single-Phase Flying-Capacitor Multilevel Power Converters

Decoupled control techniques for dual flying capacitor bridge power supplies of large superconductive magnets