All Outputs (342)

A Novel Flux Barrier Parametrization for Synchronous Reluctance Machines (2021)
Journal Article

This paper presents a novel parametrization for the flux barrier profiles of synchronous reluctance and permanent magnet assisted reluctance machines. In literature there are several methods used to design rotor flux barriers of various types, howeve... Read More about A Novel Flux Barrier Parametrization for Synchronous Reluctance Machines.

Modular Power Sharing Control for Bearingless Multi-Three Phase Permanent Magnet Synchronous Machine (2021)
Journal Article

This paper proposes a modular approach to the power sharing control of permanent magnet synchronous bearingless machine. The selected machine topology features a winding layout with phases distributed into non-overlapping three phase groups, a soluti... Read More about Modular Power Sharing Control for Bearingless Multi-Three Phase Permanent Magnet Synchronous Machine.

Analytical Methodology for Modelling of Circulating Current Loss in Synchronous Electrical Machines with Permanent Magnets (2021)
Journal Article

This paper describes a novel analytical methodology for modelling winding copper losses as a result of circulating currents (CC) in permanent magnet synchronous machines (PMSM). Nowadays mainly FEM method is used for precise calculation of circulatin... Read More about Analytical Methodology for Modelling of Circulating Current Loss in Synchronous Electrical Machines with Permanent Magnets.

Optimised Current Loop Design for a High Speed Nine-Phase Permanent Magnet Synchronous Machine in More Electric Aircraft: A Case Study (2021)
Conference Proceeding

High speed multi-phase machine has drawn widely attention towards the development of electrification due to its high power density and fault tolerant capability. A 50 kW high speed nine-phase permanent magnet synchronous machine has been designed for... Read More about Optimised Current Loop Design for a High Speed Nine-Phase Permanent Magnet Synchronous Machine in More Electric Aircraft: A Case Study.

High Speed Synchronous Reluctance Machines: Modeling, Design and Limits (2021)
Journal Article

An important barrier to the adoption and acceptance of synchronous reluctance (SyR) machines in different applications lies in their non-standardized design procedure. The conflicting requirements incurring at high speeds among electromagnetic torque... Read More about High Speed Synchronous Reluctance Machines: Modeling, Design and Limits.

Electrical Machine Slot Thermal Condition Effects on Back Iron Extension Thermal Benefits (2021)
Journal Article

The slot thermal condition is critical for thermal management of high-performance electrical machines, due to the high heat losses and poor heat transfer ability within the slot. With a part of the back iron projected radially downward into the slot,... Read More about Electrical Machine Slot Thermal Condition Effects on Back Iron Extension Thermal Benefits.

Optimised Design of Permanent Magnet Assisted Synchronous Reluctance Machines for Household Appliances (2021)
Journal Article

This paper is focused on the design, optimisation and control of a permanent magnet assisted synchronous reluctance machine (PMaSynRel) for low cost high efficiency household appliances, in particular a motor for washing machine. The design and optim... Read More about Optimised Design of Permanent Magnet Assisted Synchronous Reluctance Machines for Household Appliances.

Squirrel Cage Induction Motor: A Design-Based Comparison Between Aluminium and Copper Cages (2021)
Journal Article

Improved Propulsion Motor Design for a Twelve Passenger All-Electric Aircraft (2021)
Conference Proceeding

This paper investigates the design of a 12-seater aircraft electric propulsion motor (ProMo). The design procedures aim to improve the performance of a previously designed motor, while adding further restrictions to the electrical and thermal boundar... Read More about Improved Propulsion Motor Design for a Twelve Passenger All-Electric Aircraft.

Permanent Magnet Reduction by Current Harmonics Injection for Surface Permanent Magnet Machines (2021)
Conference Proceeding

This paper presents the analysis of multi-harmonic current injection in multi-three phase surface permanent magnet (SPM) machines. An analytical model, extended to a generic harmonic order, is used to describe and determine the no load flux density,... Read More about Permanent Magnet Reduction by Current Harmonics Injection for Surface Permanent Magnet Machines.

Torque Ripple Suppression for IPMSM using FEA- based Model Predictive Direct Torque Control (2021)
Conference Proceeding

The interest in model predictive direct torque control (MP-DTC) for high-performance dynamic control of electric drives has been growing. Unlike the conventional direct torque control (DTC), MP-DTC can achieve optimal voltage selection by predicting... Read More about Torque Ripple Suppression for IPMSM using FEA- based Model Predictive Direct Torque Control.

4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft (2021)
Journal Article

This article describes the underpinning research, development, construction, and testing of a 4-MW multithree phase generator designed for a hybrid-electric aircraft propulsion system demonstrator. The aim of the work is to demonstrate gravimetric po... Read More about 4-MW Class High-Power-Density Generator for Future Hybrid-Electric Aircraft.

A Thermal Modelling Approach and Experimental Validation for an Oil Spray-Cooled Hairpin Winding Machine (2021)
Journal Article

Enhanced Active Disturbance Rejection Current Controller for Permanent Magnet Synchronous Machines Operated at Low Sampling Time Ratio (2021)
Journal Article

Recently, Active Disturbance Rejection Control (ADRC) Scheme has been widely used for current regulation in AC drive systems owing to its robustness to system uncertainties and its high disturbance-rejection capability. However, it has not been consi... Read More about Enhanced Active Disturbance Rejection Current Controller for Permanent Magnet Synchronous Machines Operated at Low Sampling Time Ratio.

Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller (2021)
Journal Article

Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for the current regulation in electrical drives. However, the gain selection of the PI CC is still regarded to be poorly r... Read More about Fast and Simple Tuning Rules of Synchronous Reference Frame Proportional-Integral Current Controller.

Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve (2021)
Conference Proceeding

High strength magnetic steel laminations are the invariable choice to achieve the power density demands of high speed electric machines required in the automotive industry. However, the cost competitive automobile market, favours the use of conventio... Read More about Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve.

Lifetime Estimation of Enameled Wires Under Accelerated Thermal Aging Using Curve Fitting Methods (2021)
Journal Article

Estimating the lifetime of enameled wires using the conventional/standard test method requires a significant amount of time that can endure up to thousands of testing hours, which could considerably delay the time-to-market of a new product. This pap... Read More about Lifetime Estimation of Enameled Wires Under Accelerated Thermal Aging Using Curve Fitting Methods.

Active Thermal Control for Modular Power Converters in Multi-Phase Permanent Magnet Synchronous Motor Drive System (2021)
Journal Article

Modular winding structure has been employed in the Permanent Magnet SynchronousMotors (PMSMs) to increase the reliability and reduce the torque ripple. Nevertheless, the reliability ofthe motor system depends on the lifetime of the power semiconducto... Read More about Active Thermal Control for Modular Power Converters in Multi-Phase Permanent Magnet Synchronous Motor Drive System.

Optimization and Analysis of a High Power Density and Fault Tolerant Starter–Generator for Aircraft Application (2020)
Journal Article

Permanent magnet synchronous machines provide many dramatic electromagnetic performances such as high efficiency and high power density, which make them more competitive in aircraft electrification, whereas, designing a permanent magnet starter–gener... Read More about Optimization and Analysis of a High Power Density and Fault Tolerant Starter–Generator for Aircraft Application.

Electrical Machines for the More Electric Aircraft: Partial Discharges Investigation (2020)
Journal Article

Modern electrical machines employed in transportation applications are required to provide high performance in terms of power (and torque) density. At the same time, being these applications safety-critical, a significant level of reliability and/or... Read More about Electrical Machines for the More Electric Aircraft: Partial Discharges Investigation.