Optimal Design of Permanent Magnetic Actuator for Permanent Magnet Reduction and Dynamic Characteristic Improvement using Response Surface Methodology

Abstract

-Permanent magnetic actuators (P.M.A.s) are widely used to drive medium-voltage-class vacuum circuit breakers (V.C.B.s). In this paper, a method for design optimization of a P.M.A. for V.C.B.s is discussed. An optimal design process employing the response surface method (R.S.M.) is proposed. In order to calculate electromagnetic and mechanical dynamic characteristics, an initial P.M.A. model is subjected to numerical analysis using finite element analysis (F.E.A.), which is validated by comparing the calculated dynamic characteristics of the initial P.M.A. model with no-load test results. Using tables of mixed orthogonal arrays and the R.S.M., the initial P.M.A. model is optimized to minimize the weight of the permanent magnet (P.M.) and to improve the dynamic characteristics. Finally, the dynamic characteristics of the optimally designed P.M.A. are compared to those of the initially designed P.M.A.

Analysis, Design, and Optimization of a Novel Asymmetrical Bistable Short Mover Permanent Magnet Actuator for High-Voltage Circuit Breaker Application

“…On other hand, in [14], the topology of symmetrical bistable permanent magnet actuator is presented to solve the problem of big retention in the close state and to improve magnet actuator is presented to solve the problem of big retention in the close state and to improve the efficiency. However, the starting time and wastage will increase for the symmetrical structure bistable permanent magnet actuator, which is caused by the large retention forces in the opening stage [15][16][17][18][19][20][21][22][23][24][25][26]. Thus, the asymmetrical structure bistable permanent magnet actuator (ASBPMA) is presented in [27][28][29][30][31][32] to improve HVBC with symmetrical bistable permanent magnet actuator.…”

Comparative Study of Stator Configurations of a Permanent Magnet Linear Oscillating Actuator for Orbital Friction Vibration Actuator

“…The thrust force per area fρ, and the thrust force ripple fσ, which greatly influence the operating capability of the LOA [10,11], are defined as max min max min …”

Unsymmetrical bistable multimagnetic circuit permanent magnet actuator for high‐voltage circuit breaker application: analysis, design, and dynamic simulation

“…The response surface methodology and specific objective function are used to optimise the CSBPMA to improve the dynamic characteristics [13]. In [14], the response surface method coupled with tables of mixed orthogonal arrays, which can reduce the number of experiments, are used to minimise the weight of the PM and improve the dynamic characteristics of CSBPMA. The modified hybrid CSBPMA, characterised by large magnetic force, low energy consumption, low coil inductance, PM demagnetisation isolation, and improved transient response, is presented in [15].…”

“…However, these topologies also have some disadvantages, such as large retention in the closing state, extremely large closing current, and high battery capacity or capacitance. The symmetrical structure bistable PMA (SSBPMA) overcomes some disadvantages of the monostable PMA, such as the large retention in the closing state, large closing current, and high battery capacity or capacitance [12][13][14][15][16][17][18][19][20][21]. However, the holding force in the open stage is over the need of HVCB, which increases the wastage and closing time.…”