Refined Computer Model of Auxiliary Induction Motor of Electric Locomotive Powered by Autonomous Voltage Inverter

Mikhail Pustovetov

doi:https://doi.org/10.59232/MS-V1I1P102

Research Article | Open Access | Download Full Text

Volume 1 | Issue 1 | Year 2023 | Article Id: MS-V1I1P102 DOI: https://doi.org/10.59232/MS-V1I1P102

Refined Computer Model of Auxiliary Induction Motor of Electric Locomotive Powered by Autonomous Voltage Inverter

Mikhail Pustovetov

Received	Revised	Accepted	Published
27 Jun 2023	20 Jul 2023	27 Aug 2023	03 Oct 2023

Citation

Mikhail Pustovetov. “Refined Computer Model of Auxiliary Induction Motor of Electric Locomotive Powered by Autonomous Voltage Inverter .” DS Journal of Modeling and Simulation, vol. 1, no. 1, pp. 9-24, 2023.

Abstract

The article's research object is to improve the accuracy of computer simulation of a variable frequency auxiliary electric drive of an AC electric locomotive and, more precisely, the current of the stator phase of an auxiliary induction motor when powered by an autonomous voltage inverter. The research topic of the article is the substantiation of additions to the computer model of a 3-phase induction motor, which allows taking into account the influence on the values of the leakage inductances of phases of the skin effect, as well as the saturation of the magnetic circuit from the leakage fluxes. As a research method, computer simulation using OrCAD software was chosen based on the introduction in the model of experimentally obtained oscillograms of phase voltages of an auxiliary induction motor. The results of computer simulation of the steady state with various initial data are presented and analytically compared with the data obtained experimentally. Based on a comparison of a number of characteristics of the operating mode of the electric motor (phase current, torque, rotational speed), it was concluded that it is advisable to use an augmented computer model to increase the reliability of the simulation.

Keywords

Auxiliary induction motor phase current, Leakage inductance, Magnetic circuit saturation, Skin effect, Variable frequency electric drive.

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