The design of power supply for HF MRI superconducting magnet

Chao Zhou; Tianli Dai; Jinggang Qin; Lican He; Jiangang Li

doi:10.1016/j.nima.2020.164344

The design of power supply for HF MRI superconducting magnet

Chao Zhou
, Tianli Dai
, Jinggang Qin
, Lican He
, Jiangang Li

School of Electrical Engineering

CAS - Institute of Plasma Physics
University of Science and Technology of China
Ltd

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

High-field (HF) magnet resonance imaging (MRI) is designed as a large aperture human body imaging system. The superconducting magnet provides magnetic field B₀ for HF MRI. The power supply is a key component, provides excitation and demagnetization functions for superconducting magnet. According to the requirements, the superconducting magnet power supply needs to be designed and developed with small volume and high reliability and bidirectional energy flow. A combination topology is proposed, including a pulse-width-modulation (PWM) rectifier, a dual-active-bridge (DAB), and a H-bridge. In this paper, the principle of the combination topology is introduced briefly. Meanwhile, the analysis and test results of a PWM rectifier based on hybrid active-neutral-point-clamped (ANPC) three-level are given.

Original language	English
Article number	164344
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	978
DOIs	https://doi.org/10.1016/j.nima.2020.164344
State	Published - 21 Oct 2020

Keywords

A combined topology
Hybrid ANPC three-level
MRI superconducting magnet
Power supply

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10.1016/j.nima.2020.164344

Cite this

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title = "The design of power supply for HF MRI superconducting magnet",

abstract = "High-field (HF) magnet resonance imaging (MRI) is designed as a large aperture human body imaging system. The superconducting magnet provides magnetic field B0 for HF MRI. The power supply is a key component, provides excitation and demagnetization functions for superconducting magnet. According to the requirements, the superconducting magnet power supply needs to be designed and developed with small volume and high reliability and bidirectional energy flow. A combination topology is proposed, including a pulse-width-modulation (PWM) rectifier, a dual-active-bridge (DAB), and a H-bridge. In this paper, the principle of the combination topology is introduced briefly. Meanwhile, the analysis and test results of a PWM rectifier based on hybrid active-neutral-point-clamped (ANPC) three-level are given.",

keywords = "A combined topology, Hybrid ANPC three-level, MRI superconducting magnet, Power supply",

author = "Chao Zhou and Tianli Dai and Jinggang Qin and Lican He and Jiangang Li",

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T1 - The design of power supply for HF MRI superconducting magnet

AU - Zhou, Chao

AU - Dai, Tianli

AU - Qin, Jinggang

AU - He, Lican

AU - Li, Jiangang

PY - 2020/10/21

Y1 - 2020/10/21

N2 - High-field (HF) magnet resonance imaging (MRI) is designed as a large aperture human body imaging system. The superconducting magnet provides magnetic field B0 for HF MRI. The power supply is a key component, provides excitation and demagnetization functions for superconducting magnet. According to the requirements, the superconducting magnet power supply needs to be designed and developed with small volume and high reliability and bidirectional energy flow. A combination topology is proposed, including a pulse-width-modulation (PWM) rectifier, a dual-active-bridge (DAB), and a H-bridge. In this paper, the principle of the combination topology is introduced briefly. Meanwhile, the analysis and test results of a PWM rectifier based on hybrid active-neutral-point-clamped (ANPC) three-level are given.

AB - High-field (HF) magnet resonance imaging (MRI) is designed as a large aperture human body imaging system. The superconducting magnet provides magnetic field B0 for HF MRI. The power supply is a key component, provides excitation and demagnetization functions for superconducting magnet. According to the requirements, the superconducting magnet power supply needs to be designed and developed with small volume and high reliability and bidirectional energy flow. A combination topology is proposed, including a pulse-width-modulation (PWM) rectifier, a dual-active-bridge (DAB), and a H-bridge. In this paper, the principle of the combination topology is introduced briefly. Meanwhile, the analysis and test results of a PWM rectifier based on hybrid active-neutral-point-clamped (ANPC) three-level are given.

KW - A combined topology

KW - Hybrid ANPC three-level

KW - MRI superconducting magnet

KW - Power supply

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U2 - 10.1016/j.nima.2020.164344

DO - 10.1016/j.nima.2020.164344

M3 - 文章

AN - SCOPUS:85088628947

SN - 0168-9002

VL - 978

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 164344

ER -

The design of power supply for HF MRI superconducting magnet

Abstract

Keywords

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