State-vector feedback control-based 100 kHz carrier PWM power conditioning amplifier and its high-precision current-tracking scheme

Author

Fukuda, Hiroya ; Nakaoka, Mutsuo

Author_Institution

Dept. of Electr. & Electron. Eng., Kobe Univ., Japan

fYear

1993

fDate

15-19 Nov 1993

Firstpage

1105

Abstract

This paper presents performance evaluations of a high-frequency (100 kHz) carrier switched-mode PWM power conversion amplifier system for precise high-speed current-tracking control of electromagnetic circuits. Its computer-aided analysis and some design considerations are described on the basis of state-space averaging analysis and the model matching method. The proposed power conditioning system technology is more acceptable for the current-regulated power supply of magnetic resonance imaging (MRI) machines, which requires analog-oriented unique highly-regulated power electronic circuit systems for the generation of magnetic-gradient fields

Keywords

biomedical NMR; biomedical electronics; circuit analysis computing; control system analysis computing; digital simulation; electric current control; feedback; power amplifiers; power convertors; power engineering computing; power supplies to apparatus; pulse width modulation; state-space methods; switched mode power supplies; 100 kHz; HF carrier; computer-aided analysis; current-regulated power supply; current-tracking control; electromagnetic circuits; magnetic gradient fields; magnetic resonance imaging; model matching method; power conditioning system; precision; state vector feedback control; state-space averaging; switched-mode PWM power conversion amplifier; Adaptive control; Computer aided analysis; Control systems; High power amplifiers; Magnetic analysis; Magnetic resonance imaging; Power conversion; Power system modeling; Pulse width modulation; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on

Conference_Location

Maui, HI

Print_ISBN

0-7803-0891-3

Type

conf

DOI

10.1109/IECON.1993.339120

Filename

339120