Development of quench detection/protection system based on active power method for superconducting magnet by using capacitor circuit
| Autor: | Satoru Murase, S. Hesaka, T. Otsuka, N. Nanato |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Physics
Magnetic energy business.industry High Energy Physics::Lattice Electrical engineering Energy Engineering and Power Technology Superconducting magnet AC power Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Inductance Capacitor Nuclear magnetic resonance law Magnet Electrical and Electronic Engineering Joule heating business Voltage |
| Zdroj: | Physica C: Superconductivity. 484:305-309 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/j.physc.2012.03.061 |
| Popis: | When a quench occurs in a superconducting magnet, excessive joule heating in normal region may damage the magnet. It is necessary to detect the quench as soon as possible and discharge magnetic energy stored in the magnet. The authors have presented a quench detection/protection system based on an active power method which detects the quench regardless of a self-inductive and mutual-inductive voltages and electromagnetic noise. In the conventional active power method, the inductive voltages are removed by cancel coils. In this paper, the authors propose a method to cancel an inductive voltage using a capacitor circuit. The quench detection/protection system becomes more precise and smaller than the conventional system through the capacitor circuit. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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