Lumped parameter magnetic equivalent circuit model for design of segmented PM consequent pole flux switching machine
ISSN: 0264-4401
Article publication date: 7 July 2020
Issue publication date: 8 February 2021
Abstract
Purpose
The purpose of this paper is to investigate an alternative simplified analytical approach for the design of electric machines. Numerical-based finite element method (FEM) is a powerful tool for accurate modelling and electromagnetic performance analysis of electric machines. However, computational complexity, magnetic saturation, complex stator structure and time consumption compel researchers to adopt alternate analytical model for initial design of electric machine especially flux switching machines (FSMs).
Design/methodology/approach
In this paper, simplified lumped parameter magnetic equivalent circuit (LPMEC) model is presented for newly developed segmented PM consequent pole flux switching machine (SPMCPFSM). LPMEC model accounts influence of all machine parts for quarter of machine which helps to reduce computational complexity, computational time and drive storage without affecting overall accuracy. Furthermore, inductance calculation is performed in the rotor and stator frame of reference for accurate estimation of the self-inductance, mutual inductance and dq-axis inductance profile using park transformation.
Findings
The developed LPMEC model is validated with corresponding FEA using JMAG Commercial FEA Package v. 18.1 which shows good agreement with accuracy of ∼98.23%, and park transformation precisely estimates the inductance profile in rotor and stator frame of reference.
Practical implications
The model is developed for high-speed brushless AC applications.
Originality/value
The proposed SPMCPFSM enhance electromagnetic performance owing to partitioned PMs configuration which make it different than conventional designs. Moreover, the developed LPMEC model reduces computational time by solving quarter of machine.
Keywords
Acknowledgements
This work was supported by COMSATS University Islamabad, Abbottabad Campus and Higher Education Commission of Pakistan (No 8114/KPK/NRPU/R&D/HEC/2017).
Citation
Ullah, W., Khan, F. and Umair, M. (2021), "Lumped parameter magnetic equivalent circuit model for design of segmented PM consequent pole flux switching machine", Engineering Computations, Vol. 38 No. 2, pp. 572-585. https://doi.org/10.1108/EC-04-2020-0201
Publisher
:Emerald Publishing Limited
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