Title :
State-vector feedback control based high-frequency carrier PWM power conversion amplifier with high-precision magnetic-field current-tracking scheme
Author :
Fukuda, Hiroya ; Nakaoka, Mutsuo
Author_Institution :
Dept. of Electr. & Electron. Eng., Kobe Univ., Hyogo Prefecture, Japan
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 circuit. Its computer-aided analysis and some design considerations are described on the basis of state-space averaging analysis and 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 :
circuit analysis computing; feedback; network synthesis; power amplifiers; power convertors; pulse width modulation; state-space methods; voltage control; 100 kHz; HF; PWM; SMPS; current tracking; magnetic resonance imaging; model matching method; performance evaluations; power amplifiers; power convertors; state vector feedback; state-space averaging analysis;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
