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유한 요소법에 의한 속응 여자 초전도 발전기의 과도 특성 해석
김정철,한성진,Kim, Jeong-Cheol,Hahn, Sung-Chin 한국초전도저온공학회 2000 한국초전도저온공학회논문지 Vol.2 No.2
This paper deals with finite element analysis of 2GVA superconducting generator which has slitted electrothermal shield in d-axis (SES). Three phase fault is considered torque of the S.C.G. Using the result, generator parameters are calculated by F.E.M. The results are compared with superconducting generator having conventional electrothermal shield (CES). The result shows that quick response excitation could be applied to superconducting generator with slitted electrothermal shield.
병렬유전 알고리즘을 이용한 영구자석형 액추에이터의 최적설계
金重經(Joong-Kyoung Kim),韓聲鎭(Sung-Chin Hahn),李哲均(Cheol-Gyun Lee),金翰均(Han-Kyun Kim) 대한전기학회 2008 전기학회논문지 Vol.57 No.1
This paper presents an optimal design of a permanent magnet actuator(PMA) using a parallel genetic algorithm. Dynamic characteristics of permanent magnet actuator model are analyzed by coupled electromagnetic-mechanical finite element method. Dynamic characteristics of PMA such as holding force, operating time, and peak current are obtained by no load test and compared with the analyzed results by coupled finite element method. The permanent magnet actuator model is optimized using a parallel genetic algorithm. Some design parameters of vertical length of permanent magnet, horizontal length of plunger, and depth of permanent magnet actuator are predefined for an optimal design of permanent magnet actuator model. Furthermore dynamic characteristics of the optimized permanent magnet actuator model are analyzed by coupled finite element method. A displacement of plunger, flowing current of the coil, force of plunger, and velocity of plunger of the optimized permanent magnet actuator model are compared with the results of a primary permanent magnet actuator model.