Digital Internal Model Control of High-Precision Power Supply for Particle Accelerator Magnets
| Authors: | Cavini Alessandro, CASY-DEIS, University of Bologna, Italy
Ronchi Fabio, Arca Tecnologie s.r.l., Italy
Rossi Carlo, CASY-DEIS, University of Bologna, Italy
Tilli Andrea, CASY-DEIS, University of Bologna, Italy |
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| Topic: | 6.3 Power Plants and Power Systems |
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| Session: | Power Plants and Power Systems Modelling and Control |
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| Keywords: | Power Supplies, Digital Control, Lumped Constant Model,Model-Based Control, Magnetic Fields. |
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Abstract
The paper presents the control of a power supply feeding aquadrupole magnet of a booster synchrotron. The supply equipmentis based on a switching architecture where current sharing andinterleaving techniques are adopted to minimize thevoltage/current ripple. Internal model principle is exploited inthe control design to guarantee extremely accurate tracking of thesinusoidal current reference for the quadrupole magnet. PWM-baseddigital solution is adopted instead of analog hysteresis one toavoid unpredictable behaviors of the current ripple and to allow asimple and reliable implementation of the proposed controller.Extensive simulations confirm satisfactory performances.
