Development of a Digital Quench Detection and Dumping Circuit With Constant Voltage System for SMES

被引：7

作者：

Chen, Shunzhong ^{[1
]}

Wang, Qiuliang ^{[1
]}

Dai, Yinming ^{[1
]}

Lei, Yuanzhong ^{[1
]}

Kim, Keeman ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China

[2] Korea Basic Sci Inst, Taejon 305333, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期

关键词：

Digital quench detection; dump energy; SMES;

D O I：

10.1109/TASC.2010.2043242

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A digital quench detection and protection system has been developed for a micro-sized superconducting magnetic energy storage system (SMES). The digital quench detection system based on a high-performance NI-6224 digital acquisition card accepts a standard set of input signal such as magnet induced voltage, current, pressure of cryostat. It also provides improved signal processing for sensitive and exact quench detection and data logging function. Once the superconducting magnet quenches, the quench detection system activates immediately the protection circuit. Some novel protection circuits are developed to dump the electromagnetic energy stored in the magnet; these greatly enhance the dump efficiency by maintaining the magnet terminal voltage constant during the dumping energy process. This paper detailedly describes the system and presents results.

引用

页码：2070 / 2073

页数：4

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