Title :
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
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;
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
DOI :
10.1109/IECON.1993.339120
