| Title |
A Study on the Analysis for Ac-losses of the Field Winding considering Load Changes of High-Tc Superconducting Synchronous Motor |
| Authors |
윤용수(Yun, Yong-Su) ; 송명곤(Song, Myeong-Gon) ; 장원갑(Jang, Won-Gap) ; 장인배(Jang, In-Bae) ; 홍계원(Hong, Gye-Won) ; 이상진(Lee, Sang-Jin) ; 고태국(Go, Tae-Guk) |
| Keywords |
high-Tc superconducting synchronous motor ; ac-losses ; Ag sheathed Bi-2223 |
| Abstract |
The use of high-Tc superconducting synchronous motor in power machinery has many advantages such as reduced power dissipation, size and weight. This paper presents the ac loss simulation in the rotor having an high-Tc superconducting field winding using Ag sheathed Bi-2223. The analysis was conducted with an equivalent model of the high-Tc superconducting motor with flux damper under transition condition during which the load varies from 0 watt to 250watts and from 250watts to 500watts. The simulation results show that the transient state lasts for about 3 seconds, and the ac losses decreased exponentially from the initial value above 20mW. |