Affiliations: [a] Department of Electrical Engineering, Dong-A
University, Busan, Korea | [b] Power Apparatus Research Center, Korea
Electrotechnology Research Institute, Changwon, Korea | Université Laval, Canada | Tohoku University, Japan
Correspondence:
[*]
Corresponding author: Sung-Chin Hahn, Department of Electrical
Engineering, Dong-A University, Busan 604-714, Korea. E-mail:
[email protected]
Abstract: Recently, permanent magnetic actuator (P.M.A.) is widely used to
drive the mechanism of vacuum circuit breaker (V.C.B.). This paper deals with
the optimal design of P.M.A. for V.C.B. using the response surface method
(R.S.M.). First, the dynamic characteristics of the initial P.M.A. model, such
as the holding force, exciting current, and action complete time, are
calculated by coupled electrical-mechanical problem based on finite element
method (F.E.M.). In order to verify the validity of numerical results obtained
from finite element analysis (F.E.A.), the calculated dynamic characteristics
of the initial P.M.A. model are compared with no-load test results. Next, using
the R.S.M., the initial P.M.A. model is optimized to improve the dynamic
characteristics. Finally, in order to verify the validity of the P.M.A. model
optimized by using the R.S.M., the dynamic characteristics of the optimized
P.M.A. model are calculated by using F.E.A. and compared with those of the
initial P.M.A. model.
Keywords: Finite element analysis, permanent magnetic actuator, response surface method, vacuum circuit breaker
