Development of novel soft superconducting material and device for application to power transformers

超导(SC)具有独特的性质。其中之一是在SC状态下的零电阻，其装置基本上可以在没有焦耳热量的情况下输送大容量的电流。这种特殊的特性对于一种用作功率器件的逆变器来说是非常有吸引力的。为了开发优化的SC逆变器，提出了一种新型的软超导材料和器件。研究结果表明，该开关器件可以有效地应用于太阳能电池发电逆变器中。

Superconductivity (SC) has unique properties. One of them is zero resistance at SC state and its device can deliver large capacity of current essentially without Joule heat. Such specific feature is very attractive for a kind of inverters used as power devices. In order to develop the optimized SC inverter, a novel soft superconducting material and device has been proposed. It was made clear that the present SC device can be efficiently applied to the inverter for solar cell power generation.