Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 2, No 1 (2010)

The Research Results of the Linear Electromagnetic Motor Mathematical Model

Marijanas Molis

Abstract


Development of the mathematical model of the linear electromagnetic motor and the dependencies of the inductance and traction force on the secondary element position expressed by mathematical equations, are presented in this research article. The dependency of the inductance on the secondary element position was obtained, approximating the inductance change diagram obtained experimentally. Also, using the theory of electromechanical energy transformation, mathematical expressions of the dependency of the traction force on the secondary element position were obtained. Mathematical model of the linear electromagnetic motor is composed of the system of differential equations. The Runge – Kutta calculation method was used to solve these equations. The transitional processes of the current, speed and secondary element position obtained with the solution of the system of differential equations at different supply voltage also the transitional processes of the dynamic traction force obtained at 24 V supply voltage of the motor. All obtained results of the dependencies and transitional processes of the mathematical model are presented in the graphic form. In accordance with the obtained results of the mathematical model the conclusions were formulated, specifying electromagnetic properties of the linear electromagnetic motor.

Article in Lithuanian


Article in: Lithuanian

Article published:

Keyword(s): linear electromagnetic motor; mathematical model; transitional process; secondary element; Runge – Kutta method of calculation

DOI: 10.3846/mla.2010.022

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Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
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