Title :
Improvements in the LNLS quadrupole power supplies
Author :
Rodrigues, Cleber ; De Oliveira, Luis Henrique
Author_Institution :
Power Electron. Group-ELP, Brazilian Synchrotron Light Lab.-LNLS, Campinas, Brazil
Abstract :
The Brazilian Synchrotron Light Laboratory quadrupole power supplies are in operation since the early 90s. Despite their acceptable performance, recent developments in switchmode power supply control techniques and components allows for improvements today. Hence, some modifications in these power supplies are proposed, such as the implementation of the interleaved technique with redundancy, replacement of hysteresis control by PWM control, use of fiber optics to trigger the switches. In this paper we present the improvements already made and the preliminary test results.
Keywords :
PWM power convertors; laboratories; optical fibres; power control; power supplies to apparatus; synchrotrons; Brazilian synchrotron light laboratory quadrupole power supply; LNLS quadrupole power supply; PWM control; buck converter; fiber optics; hysteresis control; interleaved technique; switch triggering; switchmode power supply control technique; Current distribution; Insulated gate bipolar transistors; Optical fibers; Power supplies; Pulse width modulation; Switches; Synchrotrons; Fiber Optics; Interleaving; Power Supplies; Redundancy;
Conference_Titel :
Power Electronics Conference (COBEP), 2011 Brazilian
Conference_Location :
Praiamar
Print_ISBN :
978-1-4577-1644-7
Electronic_ISBN :
2175-8603
DOI :
10.1109/COBEP.2011.6085244