The dynamic characteristic simulation and finite element method analysis of magnetic force actuator for long stroke length high voltage circuit breaker

Dong, Erbao; Zhang, Zhenwei; Dong, Hui; Chun-en, Fang

doi:10.1109/drpt.2011.5994151

Cited by 12 publications

(5 citation statements)

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“…They also illustrate that modified actuator successfully improves the effectiveness of medium-voltage breakers. It is obvious that compared with [3], this novel PMA has less over-shock.…”

Section: Static Field Analysismentioning

confidence: 98%

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Analysis of Asymmetry Permanent Magnetic Actuators Using Finite Element Method

Xiu

Shangguan

Chen

et al. 2012

2012 Sixth International Conference on Electromagnetic Field Problems and Applications

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This paper presents a new structure of permanent magnetic actuator (PMA), which reduces closing impact force and slows down brake speed. Based on 2D and 3D finite element analysis, this paper establishes a model that tests the force-position curves, and the electromagnetic and thermal fields are computed with the finite element analysis respectively. Finally, the results on a modified actuator in this paper validate the feasibility and advantages of the proposed approach.Keywords-finite element analysis 3D permanent magnetic actuator I.

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“…They also illustrate that modified actuator successfully improves the effectiveness of medium-voltage breakers. It is obvious that compared with [3], this novel PMA has less over-shock.…”

Section: Static Field Analysismentioning

confidence: 98%

“…Selecting the size of PMA has been mentioned in [3], but not in detail. Moreover, its novel structure makes the dynamic force curve with a large overshock, and the maximum flux density in air gap can reach 2.8T too high for PMA.A few foreseen thinking have been mentioned in [4], but the structure is different from PMA.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Asymmetry Permanent Magnetic Actuators Using Finite Element Method

Xiu

Shangguan

Chen

et al. 2012

2012 Sixth International Conference on Electromagnetic Field Problems and Applications

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“…Fig. 1 shows a general structure of MFA which mainly consists of the following parts such as moving coil and moving iron, which is called moveable part for that they always move together, static iron, permanent magnets (including main and auxiliary magnets) and transmission rod which is connected directly to the arc electrode [10]. The basic work principle of MFA: The static iron core, fixing the actuator's model as its architecture, is always used to provide magnetic circuit for the magnetic field.…”

Section: Structure Analysismentioning

confidence: 99%

Parameter Design and Dynamic Characteristic Analysis of Magnetic Force Actuator Based on Visual Basic Interface Programming

Dong

Yin

et al. 2014

AMM

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In this paper, the magnetic force actuator (MFA), a new type of actuator, is applied for long stroke driving with simple structure and high reliability. Ansys and Matlab are adopted to study its static and dynamic characteristics and conduct parameter design. The static simulation concludes static magnetic field, end shield material, structure size of permanent magnet and processing deviation of the actuator, which will impact the characteristics of the actuator in varying degrees. Then the state equations describing the dynamic characteristics of MFA are solved by four-order Runge-kutta method and finite-element method. Interactive interface of the APDL-file and M-file and Macrosoft Visual Basic (VB) is designed to combine Ansys and Matlab to realize optimization design of structure parameters, which simplifies the operation methods and enhances the efficiency. The dynamic simulation results show its good work performance compared with the experiment characteristics of practical 40.5kV SF6 circuit breaker with the spring mechanism.

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“…The relationship between magnetic force and trip coil current expressed by differential equations was derived in [10]. Utilising the finite element method, the magnetic force effect on the trip shaft gaps was further discussed in [11, 12]. Many mathematical equations were derived to help the diagnosis of the gas insulated switchgear (GIS) by change of the trip coil current [13].…”

Section: Introductionmentioning

confidence: 99%