Energy Loss by Drag Force of Superconductor Flywheel Energy Storage System With Permanent Magnet Rotor
Energy Loss by Drag Force of Superconductor Flywheel Energy Storage System With Permanent Magnet Rotor
复制标题
永磁转子超导飞轮储能系统阻力引起的能量损失
DOI：
10.1109/tmag.2008.2002633
复制
发表时间：
2008
影响因子：
2.1
通讯作者：
T. Sung
中科院分区：
文献类型：
--
作者：
Jeong;B. Park;Young;Se;T. Sung
能量损失是超导飞轮储能（SFES）系统实际应用中最重要的问题之一。 SFES的能量损失主要是由超导磁轴承（SMB）和永磁（PM）型电机/发电机（PMSM/G）等磁场部件感应的曳力引起的。本文制造了带有轴颈式SMB 的立轴式SFES。我们评估了 SMB 中产生的曳力引起的能量损失、PMSM/G 的定子铁芯和 PM 中产生的涡流产生的曳力以及漏磁通产生的曳力的特性。定量评估结果表明，PMSM/G造成的能量损失最大。为了评估 PMSM/G 引起的能量损失，评估了磁芯尺寸变化和漏磁通根据磁芯尺寸变化造成的能量损失特性。提出了一种可以最大限度地减少能量损失的新型旋转铁芯型 PMSM/G，并评估了能量损失特性。
Energy loss is one of the most important problems for the practical use of superconductor flywheel energy storage (SFES) system. The energy loss of the SFES is mainly caused by drag force induced by magnetic field parts such as the superconductor magnetic bearing (SMB) and permanent magnet (PM)-type motor/generator (PMSM/G). In this paper, a vertical-shaft-type SFES with journal-type SMB was manufactured. We assessed the characteristics of the energy loss by drag force generated in the SMB, drag force by eddy current generated in the stator core and the PM of the PMSM/G, and drag force by leakage flux. The results of quantitative assessment showed that energy loss caused by the PMSM/G was the largest. To assess energy loss caused by the PMSM/G, the characteristics of energy loss by variation of core size and by leakage flux according to core size were assessed. The new rotation-core-type PMSM/G, which can minimize energy loss, was proposed and the energy loss characteristics were assessed.