Virtual prototype model of circuit breaker movement characteristic with permanent magnetic actuator

ABSTRACT

For solving the problem of fission simulation in the simulation of a permanent magnet actuator used in a vacuum circuit breaker and improving the accuracy of simulation results, the virtual prototype model of a movement characteristic of a permanent magnet actuator used in a circuit breaker is constructed through software combination technology in this paper. The transient field simulation model of the permanent magnet actuator is established on the Ansoft Maxwell software platform, the multi-physical movement simulation model of circuit breaker is established on the Adams software platform, and the control and data transfer model of the circuit breaker is established on the Ansoft Simplorer & Matlab Simulink software platform. On this basis, the static holding force, system reaction force, equivalent mass, and contactor arc in the model are calculated, and the specific modeling parameters are determined. Combined with the test data, the accuracy of the joint simulation is verified.

KEYWORDS:

• Permanent magnetic actuator
• vacuum circuit breaker
• movement characteristic
• virtual prototype
• joint simulation

Disclosure statement

No potential conflict of interest was reported by the author(s).

Nomenclature

$B$	=	the vector of magnetic induction intensity at the surface
L	=	the inductance of the coil
$n$	=	the unit vector along the normal direction of the surface
$p$	=	the electromagnetic stress on the surface area of any element
R	=	the equivalent resistance current
$S$	=	the any closed surface
U	=	the voltage
$u_0$	=	the permeability in vacuum or air
$\psi$	=	the flux of the coil

Additional information

Funding

This work was supported by the the National R&D Program of China [2018YFB1307401].