Design of a highly stable electromagnet power supply

Author

Kwon, Bong-Hwan

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Inst. of Sci. & Technol., South Korea

Volume

39

Issue

2

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

149

Lastpage

158

Abstract

A method for designing a highly stable electromagnet power supply combining the 12-pulse phase-controlled rectifier (PCR), passive filter, and transformed active filter is investigated. The PCR system is analyzed, and passive filter parameters are designed from this analysis. A phase-locked voltage control circuit with a fast dynamic characteristic is analyzed, and an optimal constant proportional-integral and measurable variable feedback plus feedforward (PIMF) current controller is designed using a time-weighted quadratic performance index. It is shown via experimental results that the proposed design method gives good performance

Keywords

active filters; electric current control; electromagnets; feedback; passive filters; performance index; phase control; power supplies to apparatus; rectifiers; two-term control; voltage control; 12-pulse phase-controlled rectifier; PIMF current controller; fast dynamic characteristic; measurable variable feedback plus feedforward; optimal constant proportional integral control; passive filter; phase-locked voltage control circuit; stable electromagnet power supply; time-weighted quadratic performance index; transformed active filter; Active filters; Current measurement; Design methodology; Electromagnets; Feedback circuits; Passive filters; Performance analysis; Power supplies; Rectifiers; Voltage control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.166736

Filename

166736