SUPERCONDUCTING MAGNET DEVICE AND OPERATION METHOD OF THE SUPERCONDUCTING MAGNET DEVICE

• Main Authors: KOYANAGI KEI, IWAI SADANORI, TOSAKA TAIZO
• Format: Patent
• Language: English; Japanese
• Published: 21.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a highly reliable superconducting magnet device in which the quench of a PCS can be suppressed, and an operation method of the superconducting magnet device.SOLUTION: A superconducting magnet device 100 includes: a superconducting coil 1; an excitation power supply 4 introducing current to the superconducting coil 1; a permanent current switch 2 connected in parallel with the superconducting coil 1 and the excitation power supply 4; and a heater 3 heating the permanent current switch 2. The permanent current switch 2 includes a plurality of winding bodies 20, each of which has self-inductance, and which is connected in series. The plurality of winding bodies 20 is arranged so that the mutual inductance between the winding bodies 20 has a negative value.SELECTED DRAWING: Figure 1 【課題】ＰＣＳのクエンチを抑制し、信頼性の高い超電導マグネット装置、および、超電導マグネット装置の運転方法を提供する。【解決手段】超電導マグネット装置１００は、超電導コイル１と、超電導コイル１に対して電流を導入する励磁電源４と、超電導コイル１および励磁電源４に対して並列に接続された永久電流スイッチ２と、永久電流スイッチ２を加熱するヒーター３と、を具備する。永久電流スイッチ２は、各々が自己インダクタンスを有し直列に接続された複数個の巻線体２０を有する。複数個の巻線体２０は、複数個の巻線体２０間の相互インダクタンスが負の値を有するように配置される。【選択図】図１