Title :
Performance of a DSP based phase-shifted PWM controlled, zero-voltage-switching direct-current regulated magnet power supply
Author :
Gandhi, Manoj ; Singh, Shesh Nath ; Thakurta, Amalesh ; Kotaiah, Swarna
Author_Institution :
DAE, Raja Ramanna Centre for Adv. Technol. (RRCAT), Indore
Abstract :
In this paper, a power supply being used for powering quadrupole magnets of a 2.5 GeV synchrotron machine is discussed. Main focus is on the implementation of a digital control of the power supply using a digital signal processor (DSP), TMS320F2812 from TI. The control system is designed to regulate the magnet current against the variations of line-voltage, load-impedance and other parameters. The power circuit consists of an AC-DC converter followed by a DC-DC converter based on zero-voltage-switched (ZVS) high frequency inverter driven by phase-shifted pulses. The paper describes the power circuit, digital implementation of various control-loops, computer simulation and design of control loops, and finally, the simulation results along with the results achieved from the actual system
Keywords :
AC-DC power convertors; DC-DC power convertors; PWM invertors; accelerator magnets; control system synthesis; digital control; digital signal processing chips; digital simulation; electric current control; electron accelerators; switching convertors; synchrotrons; zero voltage switching; AC-DC converter; DC-DC converter; DSP; TMS320F2812 digital signal processor; accelerator magnet power supply; computer simulation; current regulation; digital control; electron synchrotron machine; high frequency inverter; phase-shifted PWM control; zero-voltage-switching; Circuits; Computer simulation; Control systems; Digital control; Digital signal processing; Digital signal processors; Power supplies; Pulse width modulation; Signal design; Synchrotrons;
Conference_Titel :
Power India Conference, 2006 IEEE
Conference_Location :
New Delhi
Print_ISBN :
0-7803-9525-5
DOI :
10.1109/POWERI.2006.1632512
