A novel four-quadrant power supply for low-energy correction magnets

This paper describes an efficient power supply to feed low-energy correction magnets in particle accelerator applications, where a controlled current with trapezoidal profile and four-quadrant operation is needed. The selected design is based on an AC–DC matrix converter topology, which uses the Spa...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2003-09, Vol.510 (3), p.357-361
Main Authors: Garcı&#x0301, a-Gil, R., Espı&#x0301, J.M., Voelker, F., Dede, E.J., Castelló, J.
Format: Article
Language:English
Subjects:
Four-quadrant
Low-energy correction magnet
Power supply
Space vector modulation
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Summary:This paper describes an efficient power supply to feed low-energy correction magnets in particle accelerator applications, where a controlled current with trapezoidal profile and four-quadrant operation is needed. The selected design is based on an AC–DC matrix converter topology, which uses the Space Vector Modulation (SVM) technique to obtain a near unity power factor at the AC input and output DC current regulation. This topology allows performing high-frequency isolation, while four-quadrant operation is maintained, and reducing volume and weight as compared with the classical thyristor (SCR)-based technology. Control tasks are implemented on an all-digital control card: output current regulation is accomplished in a digital signal processor device and SVM is implemented in a Field-Programmable Gate-Array. Simulations and experimental results of a 1.2 kW prototype validate the design.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(03)01869-2