Parallel Operation of Gradient Power Amplifiers without Large Current-Sharing Reactor

被引：1
|
作者：
Xue, Mingyu [1 ]
Zhang, Haicong [1 ]
Cao, Bin [1 ]
Chu, Xu [1 ]
机构：
[1] Shanghai United Imaging Healthcare Co, Shanghai, Peoples R China
来源：
2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2021年
基金：
国家重点研发计划;
关键词：
magnetic resonance imaging; gradient power amplifier; parallel; current sharing;
D O I：
10.1109/ECCE47101.2021.9595459
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper presents a novel solution for the parallel operation of gradient power amplifiers to drive the gradient coil within magnetic resonance imaging system. A total-current-feedback algorithm collaborating with a current-sharing algorithm, also with a small magnetic core ensure tight load sharing without large coupling reactor. The control bandwidth has not to be compromised, resulting in fast, smooth and high fidelity performance. Experimental results verify the effectiveness.
引用
收藏
页码：5940 / 5943
页数：4
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