초록 열기/닫기 버튼
This study presents the experiment and simulation results on the magnetic field response and electrical stability behaviors of noinsulation (NI) and metal insulation with stainless steel tape (MI-SS) which wound in form of racetrack type coils. First of all, thestructural design of the racetrack type bobbin was shown along with its parameters. Then, the current-voltage tests were carried outto measure the critical current of both test coils. Also, the sudden discharging and charging tests were performed in the steady stateto estimate the decay field time and magnetic field response, respectively. Finally, the overcurrent tests were conducted in thetransient state to investigate the electrical stability of these test coils. Based on the experimental results, the contact surfaceresistances were calculated and applied to the field coils (FCs) of 10-MW-class second generation high temperaturesuperconducting generator (2G HTSG) used in wind offshore environment. The charging delay time and electrical stability for NIand MI-SS HTS FCs of 10-MW-class 2G HTSG are analyzed by the equivalent circuit model and the key parameters which wereobtained from the electromagnetic finite element analysis results.
