公开(公告)号：KR1020140055255A

公开(公告)日：2014-05-09

申请号：KR1020120121803

申请日：2012-10-31

Applicant: 한국전기연구원

Inventor： 조영식 ,  고락길 ,  김석환 ,  하동우 ,  홍정표 ,  김형욱

IPC: H02K55/00

CPC classification number: Y02E40/62

Abstract: Disclosed is a superconducting field coil of a generator, which is suitable for providing a low-voltage variation rate. The present invention is to provide the field coil for a superconducting generator, configured to include: a superconductive main coil which forms a closed loop and is operated in a persistent current mode; and an auxiliary coil which is adjacent to the main coil to be operated in a power applied mode and to apply induced current to increase or decrease the magnetic field of the main coil. According to the present invention, the superconducting field coil can reduce a voltage variation rate and increase the efficiency of the generator by controlling the auxiliary coil side, which has lower inductance than the main coil according to the load variation, to control field side electromotive force. Additionally, according to the present invention, the superconducting field coil can suppress a quench of a superconducting wire rod to be generated when controlling the field side electromotive force control.

Abstract translation: 公开了一种适用于提供低电压变化率的发电机的超导场线圈。 本发明提供一种用于超导发电机的励磁线圈，其被配置为包括：形成闭环并以持续电流模式操作的超导主线圈; 以及与主线圈相邻以在功率施加模式下操作并且施加感应电流以增加或减少主线圈的磁场的辅助线圈。 根据本发明，通过根据负载变化控制具有比主线圈更低的电感的辅助线圈侧，可以通过控制场侧电动势来减小电压变化率并提高发电机的效率 。 另外，根据本发明，当控制场侧电动势控制时，超导场线圈可以抑制要产生的超导线材的骤冷。