All Outputs (44)

A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits (2017)
Journal Article

The mechanical and thermal properties of common, solid (non-laminated) ferromagnetic materials are widely available, but the electro-magnetic characteristics of such solid materials are often undefined. Existing characterization procedures such as th... Read More about A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits.

Speed control for multi-three phase synchronous electrical motors in fault condition (2017)
Conference Proceeding

The growth of electrification transportation systems is an opportunity for delving into new feasible solutions for more reliable and fault tolerant arrangements. So far, many investigations distant from the market have been carried out. Most of the w... Read More about Speed control for multi-three phase synchronous electrical motors in fault condition.

Axial position estimation of conical shaped motors for aerospace traction applications (2017)
Journal Article

This paper is concerned with the use of conical induction machines. Such machines are extremely valuable when apart from the rotational torque output, an axial translation of the rotor is also required. The inherent attraction between the stator and... Read More about Axial position estimation of conical shaped motors for aerospace traction applications.

Enhancing electromagnetic launch capability: design of a small launch system for large UAVs (2017)
Conference Proceeding

Unmanned Aerial Vehicles (UAVs) play a critical and increasing role in modern combat, giving significantly enhanced surveillance, communication and strike capabilities. There are currently a large range of UAV’s available, but in general the more cap... Read More about Enhancing electromagnetic launch capability: design of a small launch system for large UAVs.

Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications (2017)
Conference Proceeding

This paper investigates the capability of both permanent magnet synchronous machine (PMSM) and permanent magnet flux switching (PMFS) machine to provide high torque to inertia ratio for applications with demanding response in terms of acceleration an... Read More about Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications.

Analysis of salient-pole synchronous generators operating in single-phase condition (2017)
Conference Proceeding

The power generation industry has recently started to invest interest and focus on the single-phase operation of traditional three-phase, wound-field, synchronous generators. This is partially due to a combination of customer requirements and the nee... Read More about Analysis of salient-pole synchronous generators operating in single-phase condition.

Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators (2017)
Conference Proceeding

Objective of this paper is to provide design recommendations to improve the performance and power density of a 400kVA salient-pole synchronous generator, without exceeding the limitations due to critical parameters such as total harmonic distortion o... Read More about Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators.

Design optimization of integrated rotor-less inductors for high-speed AC drive applications (2017)
Conference Proceeding

Discrete sub-system due to passive elements in motor drive require functional and structural integration to make efficient and power dense overall system. Such power dense system is the prerequisite in aerospace and marine applications. This paper pr... Read More about Design optimization of integrated rotor-less inductors for high-speed AC drive applications.

uCube: Control platform for power electronics (2017)
Conference Proceeding

This paper presents a versatile tool for development, control and testing of power electronics converters. In the last decade, many different expensive off-the-shelf tools for rapid prototyping and testing have been developed and commercialised by fe... Read More about uCube: Control platform for power electronics.

Design optimization of a short-term duty electrical machine for extreme environment (2017)
Journal Article

This paper presents design optimisation of a short term duty electrical machine for extreme environments of high temperature and high altitudes. For such extreme environmental conditions of above 80⁰C and altitudes of 30km, thermal loading limits are... Read More about Design optimization of a short-term duty electrical machine for extreme environment.

Power Loss and Thermal Analysis of a MW High-Speed Permanent Magnet Synchronous Machine (2017)
Journal Article

© 1986-2012 IEEE. High-speed permanent magnet synchronous machines (PMSMs) have attracted much attention due to their high power density, high efficiency, and compact size for direct-drive applications. However, the consequent power loss density is h... Read More about Power Loss and Thermal Analysis of a MW High-Speed Permanent Magnet Synchronous Machine.

A fractional slot multiphase air-core compulsator with concentrated winding (2017)
Journal Article

Compulsator is a specially designed generator capa¬ble of delivering high current pulses to a low-impedance load, such as the electromagnetic railgun. In order to increase the tip speed of the rotor, advanced composite materials have been used in the... Read More about A fractional slot multiphase air-core compulsator with concentrated winding.

A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage (2017)
Conference Proceeding

The equivalent circuit approach has been widely exploited for the theoretical analysis of electromagnetic devices. However, in the field of classical wound-field synchronous generators, the presence of the damper cage complicates the analysis of such... Read More about A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage.

Design optimization of integrated rotational inductor for high-speed AC drive applications (2017)
Conference Proceeding

In order to make an efficient and power dense overall system, a close physical and functional integration of passive components is required instead of having a separate sub¬system for passives. Such power dense system is vital in aerospace and marine... Read More about Design optimization of integrated rotational inductor for high-speed AC drive applications.

Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors (2017)
Conference Proceeding

This paper describes the implementation of a simple, robust and cost-effective sensorless control technique for PMSM machines. The method uses stator current derivative measurements made in response to certain PWM vectors. In this work the derivative... Read More about Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors.

Self-excitation and energy recovery of air-core compulsators (2017)
Journal Article

As power supplies, compulsators are popular choices for high-end railgun power supplies. In order to increase power and energy density, air-core compulsators are proposed by using composite materials instead of traditional iron-core compulsators. Due... Read More about Self-excitation and energy recovery of air-core compulsators.

Radial force control for triple three-phase sectored SPM machines. Part II: Open winding fault tolerant control (2017)
Conference Proceeding

A new advanced fault tolerant control technique for a triple three-phase Surface Permanent Magnet (SPM) machine is investigated in this paper. The machine has a nine-phase winding arranged in three sectors and supplied by three different Voltage Sour... Read More about Radial force control for triple three-phase sectored SPM machines. Part II: Open winding fault tolerant control.

Radial force control for triple three-phase sectored SPM machines. Part I: Machine model (2017)
Conference Proceeding

The radial force control technique for a triple three-phase Surface Permanent Magnet (SPM) machine is investigated in this paper. The machine has a nine-phase winding arranged in three sectors and supplied by three different Voltage Source Inverters... Read More about Radial force control for triple three-phase sectored SPM machines. Part I: Machine model.

Design and control of segmented triple three-phase SPM machines for fault tolerant drives (2017)
Conference Proceeding

A new multiphase Surface Permanent Magnet (SPM) machine design is investigated in this paper. The machine has a nine-phase winding arranged in three sectors and supplied by three different Voltage Source Inverters (VSI). Stator segmentation between t... Read More about Design and control of segmented triple three-phase SPM machines for fault tolerant drives.

A fast method for modelling skew and its effects in salient-pole synchronous generators (2017)
Journal Article

The general effects of implementing skewing techniques in electrical machines are well known and have been extensively studied over the years. An important aspect of such techniques is related to the identification of optimal methods for analyzing an... Read More about A fast method for modelling skew and its effects in salient-pole synchronous generators.