Work

Modelling Axial Nonuniformity in Induction Machines Using a Multislice Magnetic Equivalent Circuit

Year: 2024

Type: article

Abstract: The presence of axial nonuniformity poses challenges in the modelling of induction machines (IMs) by disrupting the machine cross-sectional consistency. To tackle these challenges, this article presents a multislice magnetic equivalent circuit (MEC)-based modelling approach. In this model, a machine with axial nonuniformity is partitioned into axially uniform sections along its axial direction, each treated as a slice. The length, angular displacement, and radial translation of each slice are determined using Gaussian discretisation. MECs are constructed for all slices and integrated under an identical current excitation, forming a multislice magnetic circuit model. The resultant magnetic circuit equations are combined with temporally discretised electrical circuit equations, establishing a strong electromagnetic coupling. This electromagnetic model is further weakly coupled with a mechanical model to fully characterise machine dynamics, thus completing an electro-magneto-mechanical coupling. The effectiveness of the proposed modelling approach is confirmed through experimental validation.

Source: IEEE Transactions on Industrial Electronics

DOI: 10.1109/tie.2024.3488354

Authors: Zifeng Gong, Philip Desenfans, Davy Pissoort, Hans Hallez, Dries Vanoost

Institution: KU Leuven

Language: English

Topic: Electric Motor Design and Analysis

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

Funders: China Scholarship Council, Chinese Government Scholarship