A combined approach using phase-controlled rectifiers and high-frequency converters for magnet-load power supplies

Author

Jin, H. ; Wang, Yannan ; Joos, G.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

fYear

1994

fDate

13-17 Feb 1994

Firstpage

135

Abstract

In this paper, a control technique for a hybrid large-power high-precision magnet power supply is presented. The system consists of a phase controlled rectifier and a high-frequency PWM converter. The rectifier is designed to handle the main output power and the PWM converter is designed only for harmonics cancellation and error compensation. A feedforward control scheme is proposed to ensure that the desired power sharing is maintained during both the steady state and transient operations. The operating principles of the proposed structure are discussed in the paper, and the results from computer simulation verify the concept

Keywords

digital simulation; electromagnets; phase control; power convertors; power engineering computing; power supplies to apparatus; pulse width modulation; rectifiers; rectifying circuits; PWM converter; computer simulation; error compensation; feedforward control; harmonics cancellation; high-frequency converters; magnet-load power supplies; phase-controlled rectifiers; power sharing; steady state operation; transient operations; Error compensation; Magnetic switching; Open loop systems; Power generation; Power harmonic filters; Power supplies; Power system harmonics; Pulse width modulation converters; Rectifiers; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual

Conference_Location

Orlando, FL

Print_ISBN

0-7803-1456-5

Type

conf

DOI

10.1109/APEC.1994.316408

Filename

316408