All Outputs (303)

Uptake competition between selenium and sulphur fertilizers in sequential harvests of ryegrass: A stable isotope study (2019)
Conference Proceeding

The demand for sulphur (S) fertilizers has increased due to declining S emissions from coal burning and subsequent deposition on agricultural land. Slow-release S may only be beneficial for grass Selenium (Se) status initially and less beneficial for... Read More about Uptake competition between selenium and sulphur fertilizers in sequential harvests of ryegrass: A stable isotope study.

Feasibility of Utilizing Current Propulsion Technologies in Support of Very Low Earth Observation Space Platforms (2019)
Conference Proceeding

An emerging low earth orbit spacecraft platform is being sought after due to many advantages of operation at low earth orbits of altitude less than 450Km. These encompasses better imagery and enhanced communications capabilities in addition of space... Read More about Feasibility of Utilizing Current Propulsion Technologies in Support of Very Low Earth Observation Space Platforms.

An Improved PML Implementation In The Transmission Line Method (2019)
Conference Proceeding

A new framework for the development of the perfectly matched layer (PML) in the Transmission Line Modelling (TLM) method is demonstrated. The formulation is based on the stretched coordinate PML and involves the mapping of the TLM node to an analytic... Read More about An Improved PML Implementation In The Transmission Line Method.

Automated HF Modelling of Induction Machines Considering the Effects of Aging (2019)
Conference Proceeding

The use of wide bandgap semiconductor devices, such as SiC and GaN MOSFETs, in high-frequency converters introduces new challenges for the design of electric drives. The very fast switching transient of which these devices are capable, in fact, can b... Read More about Automated HF Modelling of Induction Machines Considering the Effects of Aging.

Advantages of Communication in Double Three-Phase Surface Permanent Magnet Machines Fed by Independent Inverters (2019)
Conference Proceeding

This paper deals with a double three-phase Surface Permanent Magnet (SPM) drive where two independent three-phase inverters are supplying the same electrical machine. This work highlights how the magnetic coupling of the two windings affects the cont... Read More about Advantages of Communication in Double Three-Phase Surface Permanent Magnet Machines Fed by Independent Inverters.

Optimized Carrier Disposition Based Discontinuous Pulse-width Modulation Method for three-level NPC Converters (2019)
Conference Proceeding

Three level neutral-point-clamped (3L-NPC) converter is a multilevel topology that is well-suited solution in high voltage, high frequency applications such as flexible AC transmission systems and electric vehicle drive systems. This paper is focused... Read More about Optimized Carrier Disposition Based Discontinuous Pulse-width Modulation Method for three-level NPC Converters.

Grid Impedance Identification and Structured-h2 Optimization Based Controller Design of Active Front-end in Embedded AC Networks (2019)
Conference Proceeding

The increasing use of power electronics systems and distributed generation in modern power networks has raised important issues regarding the effects that inter-connected converters systems can have on the performance and stability of the whole grid.... Read More about Grid Impedance Identification and Structured-h2 Optimization Based Controller Design of Active Front-end in Embedded AC Networks.

A Rainbow Metamaterial For Broadband Multi-frequency Vibration Suppression (2019)
Conference Proceeding

In this study, we propose a rainbow metamaterial to achieve multi-frequency broadband vibration suppression. A U-shaped beam is partitioned into subspace by parallel baffle plates. Cantilever-mass microstructures are then attached to the each subspac... Read More about A Rainbow Metamaterial For Broadband Multi-frequency Vibration Suppression.

Reuse of a Damaged Permanent Magnet Synchronous Motor for Torque Ripple and Acoustic Noise Elimination using a Novel Repetitive Observer (2019)
Conference Proceeding

A permanent magnet synchronous motor (PMSM) has its bearing damaged and is irreversibly demagnetized due to overcurrent. Due to the changes in its electromagnetic configuration, the motor suffers from extremely high torque ripple, which produces into... Read More about Reuse of a Damaged Permanent Magnet Synchronous Motor for Torque Ripple and Acoustic Noise Elimination using a Novel Repetitive Observer.

Modulated Model Predictive Control for Induction Motor Drives with Sequential Cost Function Evaluation (2019)
Conference Proceeding

Sequential model predictive control is a recent innovation in the high-performance control of electric drives. The elimination of weighting factors and associated tuning work is among the biggest advantages of this MPC implementation. The cost functi... Read More about Modulated Model Predictive Control for Induction Motor Drives with Sequential Cost Function Evaluation.

A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors (2019)
Conference Proceeding

© 2019 IEEE. In some cases, only two current sensors are available in three-phase three-wire (3P3W) inverters. This occurs when one of three sensors is faulty, or the inverter is equipped with only two sensors to save cost. There has been no method a... Read More about A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors.

A Novel Virtual Space Vector Modulation Scheme for Three-Level NPC Power Converter with Neutral-Point Voltage Balancing and Common-Mode Voltage Reduction for Electric Starter/Generator System in More-Electric-Aircraft (2019)
Conference Proceeding

In recent years, More-Electric-Aircraft (MEA) becomes the state-of-the-art. One of the essential issue need to be solved is neutral-point (NP) voltage drift in three-level neutral-point-clamped (3L-NPC) power converter because of low power factor (PF... Read More about A Novel Virtual Space Vector Modulation Scheme for Three-Level NPC Power Converter with Neutral-Point Voltage Balancing and Common-Mode Voltage Reduction for Electric Starter/Generator System in More-Electric-Aircraft.

An Active Modulation Scheme for Avoiding Overcharging in the Dual Converter with Isolated Asymmetric Supplies (2019)
Conference Proceeding

This paper presents an enhanced modulation technique for dual converters with isolated supplies. This unified modulation technique is applicable for any positive voltage ratio between the isolated supplies. The modulation technique enhances the quali... Read More about An Active Modulation Scheme for Avoiding Overcharging in the Dual Converter with Isolated Asymmetric Supplies.

Wave scattering in coupled composite plates (2019)
Conference Proceeding

Establishing the wave propagation characteristics at plate junctions is of great importance in the prediction of vibrational energy transmission across complex structures. A hybrid approach combining the finite element (FE) and the wave finite elemen... Read More about Wave scattering in coupled composite plates.

Rotor UMP & Mechanical Response in HSPMSM in Typical Running Conditions (2019)
Conference Proceeding

This paper presents a comprehensive analysis on the rotor unbalanced magnetic pull (UMP) and the consequent mechanical response in 6 typical running conditions in a 20000 rpm high speed permanent magnet synchronous motor (HSPMSM) through finite eleme... Read More about Rotor UMP & Mechanical Response in HSPMSM in Typical Running Conditions.

Impact of Converters Interactions on Control Design in a Power Electronics Dense Network: Application to More Electric Aircraft (2019)
Conference Proceeding

The aim of the work described in this paper is to analyze the impact that converters interactions, in a power electronics embedded grid, have on the control performance of each subsystem, with particular focus on More Electric Aircraft (MEA) applicat... Read More about Impact of Converters Interactions on Control Design in a Power Electronics Dense Network: Application to More Electric Aircraft.

Evaluation of Posicast Compensator Robustness for the Reduction of Torsional Vibrations (2019)
Conference Proceeding

The drivetrain of most aircraft engines, which links the electrical generators to the engine, is relatively flexible and has vibration modes with values below 100 Hz. Consequently, torsional vibrations can be excited by the sudden connection or disco... Read More about Evaluation of Posicast Compensator Robustness for the Reduction of Torsional Vibrations.

Image processing algorithm to determine an optimised 2D laser cutting trajectory (2019)
Conference Proceeding

Laser cutting processes offer high-quality and fast cutting capability across a wide variety of materials, including metals, plastics and organic tissues. To enable 2D laser cutting process, a set of (x, y) Cartesian coordinates that form a cutting t... Read More about Image processing algorithm to determine an optimised 2D laser cutting trajectory.

Ant Colony Optimization Algorithm for Industrial Robot Programming in a Digital Twin (2019)
Conference Proceeding

Advanced manufacturing that is adaptable to constantly changing product designs often requires dynamic changes on the factory floor to enable manufacture. The integration of robotic manufacture with machine learning approaches offers the possibility... Read More about Ant Colony Optimization Algorithm for Industrial Robot Programming in a Digital Twin.

Optimal Control of Matrix Converters (2019)
Conference Proceeding