Skip to main content

Research Repository

Advanced Search

All Outputs (113)

Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors (2015)
Journal Article
Arumugam, P., Dusek, J., Mezani, S., Hamiti, T., & Gerada, C. (in press). Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors. Mathematics and Computers in Simulation, 130, https://doi.org/10.1016/j.matcom.2015.10.010

This paper investigates the influence of eddy current losses in multi-stranded bundle conductors employed in out-runner permanent magnet machines, by adopting an analytical model. The analytical model is based on a sub-domain field model that solves... Read More about Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors.

Turn-turn short circuit fault management in permanent magnet machines (2015)
Journal Article
Arumugam, P., Hamiti, T., & Gerada, C. (in press). Turn-turn short circuit fault management in permanent magnet machines. IET Electric Power Applications, 9(9), https://doi.org/10.1049/iet-epa.2015.0020

This paper presents a systematic study on turn-turn short circuit fault and ways to manage them to provide a basis for comparison of the various options available. The possible methods to reduce the likelihood of the winding SC fault and the fault mi... Read More about Turn-turn short circuit fault management in permanent magnet machines.

Computation of wound rotor induction machines based on coupled finite elements and circuit equation under a first space harmonic approximation (2015)
Journal Article
Mezani, S., Hamiti, T., Belguerras, L., Lubin, T., & Gerada, C. (2015). Computation of wound rotor induction machines based on coupled finite elements and circuit equation under a first space harmonic approximation. IEEE Transactions on Magnetics, 52(3), https://doi.org/10.1109/TMAG.2015.2478798

The paper presents a fast method to compute wound rotor induction machines in steady state. Coupled time-harmonic FE-circuit equation are used under a first space harmonic approximation for the air-gap magnetic field. It is shown that only 4 magnetos... Read More about Computation of wound rotor induction machines based on coupled finite elements and circuit equation under a first space harmonic approximation.

Development of an axial flux MEMS BLDC micromotor with increased efficiency and power density (2015)
Journal Article
Ding, X., Liu, G., Du, M., Guo, H., Qiao, H., & Gerada, C. (2015). Development of an axial flux MEMS BLDC micromotor with increased efficiency and power density. Energies, 8(7), https://doi.org/10.3390/en8076608

This paper presents a rigorous design and optimization of an axial flux microelectromechanical systems (MEMS) brushless dc (BLDC) micromotor with dual rotor improving both efficiency and power density with an external diameter of only around 10 mm. T... Read More about Development of an axial flux MEMS BLDC micromotor with increased efficiency and power density.

Magnetically geared induction machines (2015)
Journal Article
Mezani, S., Hamiti, T., Belguerras, L., Lubin, T., Rashed, M., & Gerada, C. (2015). Magnetically geared induction machines. IEEE Transactions on Magnetics, 51(11), https://doi.org/10.1109/TMAG.2015.2443252

A wound-rotor induction machine is artfully coupled to a magnetic gear to achieve a high-torque-density drive system called magnetically geared induction machine (MaGIM). The high-speed rotor of MaGIM is common to both the machine and gear sides. A r... Read More about Magnetically geared induction machines.

Permanent magnet machine design trade-offs to achieve sensorless control at high load (2015)
Journal Article
Caner, M., Gerada, C., & Asher, G. (2015). Permanent magnet machine design trade-offs to achieve sensorless control at high load. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 34(1), 324-343. https://doi.org/10.1108/compel-02-2014-0039

Purpose

The purpose of this paper is to introduce a new design optimization technique for a surface mounted permanent magnet (SMPM) machine to increase sensorless performance at high loadings by compromising with torque capability.

Design/meth... Read More about Permanent magnet machine design trade-offs to achieve sensorless control at high load.

Automatic design of Synchronous Reluctance motors focusing on barrier shape optimization (2014)
Journal Article
Pellegrino, G., Cupertino, F., & Gerada, C. (2014). Automatic design of Synchronous Reluctance motors focusing on barrier shape optimization. IEEE Transactions on Industry Applications, 51(2), https://doi.org/10.1109/TIA.2014.2345953

The automated design of Synchronous Reluctance motors based on Multi-Objective, Genetic Optimization and Finite Element Analysis is considered in this paper. Three types of barrier shapes are considered, all described by an effective, limited set of... Read More about Automatic design of Synchronous Reluctance motors focusing on barrier shape optimization.

Design of synchronous reluctance motors with multiobjective optimization algorithms (2014)
Journal Article
Cupertino, F., Pellegrino, G., & Gerada, C. (2014). Design of synchronous reluctance motors with multiobjective optimization algorithms. IEEE Transactions on Industry Applications, 50(6), https://doi.org/10.1109/TIA.2014.2312540

The automatic design of Synchronous Reluctance (SyR) machines is considered in this paper by means of Finite Element Analysis and Multi-Objective Optimization Algorithms (MOOA). The research focuses on the design of the rotor geometry which is the ke... Read More about Design of synchronous reluctance motors with multiobjective optimization algorithms.

High-speed electrical machines: technologies, trends and developments (2013)
Journal Article
Gerada, D., Mebarki, A., Brown, N., Gerada, C., Cavagnino, A., & Boglietti, A. (2014). High-speed electrical machines: technologies, trends and developments. IEEE Transactions on Industrial Electronics, 61(6), https://doi.org/10.1109/TIE.2013.2286777

This paper reviews the current technologies used in high speed electrical machines, through an extensive survey of different topologies developed and built in industry as well as in academia for several applications. Developments in materials and com... Read More about High-speed electrical machines: technologies, trends and developments.

Induction motors versus permanent magnet actuators for aerospace applications (2013)
Journal Article
Kakosimos, P. E., Sarigiannidis, A. G., Beniakar, M. E., Kladas, A. G., & Gerada, C. (2014). Induction motors versus permanent magnet actuators for aerospace applications. IEEE Transactions on Industrial Electronics, 61(8), https://doi.org/10.1109/TIE.2013.2274425

This paper introduces a comparative study on the design of aerospace actuators concerning Induction Motor (IM) and Permanent Magnet Motor (PMM) technologies. In the analysis undertaken, the two candidate configurations are evaluated in terms of both... Read More about Induction motors versus permanent magnet actuators for aerospace applications.

Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines (2013)
Journal Article
Arumugam, P., Hamiti, T., Brunson, C., & Gerada, C. (2014). Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines. IEEE Transactions on Industrial Electronics, 61(3), 1158-1168. https://doi.org/10.1109/TIE.2013.2259777

This paper investigates the behavior of a vector-controlled fault-tolerant permanent magnet motor drive system adopting a vertically placed strip winding (VSW) which can limit interturn short-circuit (SC) fault current to its rated value regardless o... Read More about Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines.

Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management (2013)
Journal Article
Connor, P. H., Pickering, S., Gerada, C., Eastwick, C., Micallef, C., & Tighe, C. (2013). Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management. IET Electric Power Applications, 7(3), https://doi.org/10.1049/iet-epa.2012.0278

This study is the first in a series dedicated to investigating the airflow and thermal management of electrical machines. Owing to the temperature dependent resistive losses in the machine's windings, any improvement in cooling provides a direct redu... Read More about Computational fluid dynamics modelling of an entire synchronous generator for improved thermal management.