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RESEARCH PRODUCT
A novel four-quadrant power supply for low-energy correction magnets
F. VoelkerR. Garcia-gilE. J. DedeJosé M. EspíJ. Castellósubject
PhysicsNuclear and High Energy PhysicsDigital signal processorThyristorParticle acceleratorPower factorQuadrant (instrument)law.inventionSupport vector machinelawMagnetElectronic engineeringInstrumentationSpace vector modulationdescription
Abstract 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-09-11 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |