All Outputs (56)

Overload robust IGBT design for SSCB application (2014)
Journal Article
Supono, I., Urresti, J., Castellazzi, A., & Flores, D. (in press). Overload robust IGBT design for SSCB application. Microelectronics Reliability, 54(9/10), https://doi.org/10.1016/j.microrel.2014.07.146

This paper presents an optimised power semiconductor architecture based on the CIGBT approach to be used in solid-state circuit breaker (SSCB) applications where the conduction losses have to be as low as possible without compromising the forward vol... Read More about Overload robust IGBT design for SSCB application.

Bonding strength of multiple SiC die attachment prepared by sintering of Ag nanoparticles (2014)
Journal Article
Li, J., Johnson, C. M., Buttay, C., Sabbah, W., & Azzopardi, S. (2015). Bonding strength of multiple SiC die attachment prepared by sintering of Ag nanoparticles. Journal of Materials Processing Technology, 215, 299-308. https://doi.org/10.1016/j.jmatprotec.2014.08.002

3 mm × 3 mm dummy SiC dies with 100\200\200 nm thick Ti\W\Au metallization have simultaneously been attached using sintering of Ag nanoparticle paste on AlN-based direct bonded copper substrates with 5\0.1 μm thick NiP\Au finish. The effect of prepar... Read More about Bonding strength of multiple SiC die attachment prepared by sintering of Ag nanoparticles.

Built-in reliability design of a high-frequency SiC MOSFET power module (2014)
Conference Proceeding
Li, J., Gurpinar, E., Lopez Arevalo, S., Castellazzi, A., & Mills, L. (in press). Built-in reliability design of a high-frequency SiC MOSFET power module.

A high frequency SiC MOSFET-based three-phase, 2-level power module has been designed, simulated, assembled and tested. The design followed a built-in reliability approach, involving extensive finite-element simulation based analysis of the electro-t... Read More about Built-in reliability design of a high-frequency SiC MOSFET power module.

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.

Integrated Half-Bridge Switch Using 70- ?m-Thin Devices and Hollow Interconnects (2014)
Journal Article
Solomon, A. K., Li, J., Castellazzi, A., & Johnson, C. M. (2015). Integrated Half-Bridge Switch Using 70- ?m-Thin Devices and Hollow Interconnects. IEEE Transactions on Industry Applications, 51(1), 556-566. https://doi.org/10.1109/TIA.2014.2334734

An application-oriented integration concept for a half-bridge switch assembly has been developed based on the latest generation 70- ?m-thin insulated gate bipolar transistors and diodes, which are rated at 600 V/200 A. This paper addresses the design... Read More about Integrated Half-Bridge Switch Using 70- ?m-Thin Devices and Hollow Interconnects.

Real time parameter estimation for power quality control and intelligent protection of grid-connected power electronic converters (2014)
Journal Article
Sumner, M., Abusorrah, A., Thomas, D. W., & Zanchetta, P. (2014). Real time parameter estimation for power quality control and intelligent protection of grid-connected power electronic converters. IEEE Transactions on Smart Grid, 5(4), https://doi.org/10.1109/TSG.2014.2298495

This paper presents a method to identify power system impedance in real-time using signals obtained from grid- connected power electronic converters. The proposed impedance estimation has potential applications in renewable/distributed energy systems... Read More about Real time parameter estimation for power quality control and intelligent protection of grid-connected power electronic converters.

Interdiffusion coefficients of binary multiphase systems with consideration of variation in Molar volumes (2014)
Journal Article
Li, J., Agyakwa, P., & Johnson, C. M. (2014). Interdiffusion coefficients of binary multiphase systems with consideration of variation in Molar volumes

This communication introduces a modification to the Wagner method to reveal and correct considerable systematic errors existing in the previously established analytical methods used to calculate the interdiffusion coefficients of binary multiphase sy... Read More about Interdiffusion coefficients of binary multiphase systems with consideration of variation in Molar volumes.

Electrothermal combined optimization on notch in air-cooled high-speed permanent-magnet generator (2014)
Journal Article
Zhang, X., Li, W., Baoquan, K., Cao, J., Cao, H., Gerada, C., & Zhang, H. (2014). Electrothermal combined optimization on notch in air-cooled high-speed permanent-magnet generator. IEEE Transactions on Magnetics, 51(1), https://doi.org/10.1109/TMAG.2014.2332437

A 30kVA, 96000rpm, air cooled high-speed permanent magnetic generator (HSPMG) is investigated in this paper. Considering effects on both the magnetic circuit and heat transfer paths comprehensively, the stator slot notch in this HSPMG is optimized. F... Read More about Electrothermal combined optimization on notch in air-cooled high-speed permanent-magnet generator.

Testing of a lightweight SiC power module for avionic applications (2014)
Conference Proceeding
Gurpinar, E., Lopez Arevalo, S., Li, J., De, D., Castellazzi, A., & Mills, L. (in press). Testing of a lightweight SiC power module for avionic applications.

Functional and performance tests of a three-phase, two-level power module based on CREE 1.2kV SiC MOSFETs for avionic applications is presented in this paper. SiC devices have superior properties over conventional Si devices at high voltage operation... Read More about Testing of a lightweight SiC power module for avionic applications.

Indirect matrix converter modulation strategies for open-end winding induction machine (2014)
Journal Article
Riedemann Aros, J., Peña Guiñez, R., Cardenas, R., Blasco Giménez, R., & Clare, J. C. (2014). Indirect matrix converter modulation strategies for open-end winding induction machine. IEEE Latin America Transactions, 12(3), https://doi.org/10.1109/TLA.2014.6827864

In this paper an Indirect Matrix Converter (IMC) topology suitable for controlling an open-end winding induction machine is presented. The IMC is a direct power converter having no bulky energy storage elements with an input or current rectifying sta... Read More about Indirect matrix converter modulation strategies for open-end winding induction machine.

Power conversion for a novel AC/DC aircraft electrical distribution system (2014)
Journal Article
Trentin, A., Zanchetta, P., Wheeler, P., & Clare, J. C. (2014). Power conversion for a novel AC/DC aircraft electrical distribution system. IET Electrical Systems in Transportation, 4(2), https://doi.org/10.1049/iet-est.2013.0005

This paper proposes a novel and compact AC/DC electrical distribution system for new generation aircraft. In these new aircraft power systems, all loads are fed by two dc bus systems: at 28V and at +/-270V. The electrical distribution system, whose d... Read More about Power conversion for a novel AC/DC aircraft electrical distribution system.

Snappy App: a mobile continuous performance test with physical activity measurement for assessing Attention Deficit Hyperactivity Disorder (2014)
Conference Proceeding
Young, Z., Craven, M. P., Groom, M. J., & Crowe, J. A. (2014). Snappy App: a mobile continuous performance test with physical activity measurement for assessing Attention Deficit Hyperactivity Disorder. In M. Kurosu (Ed.), Human-computer interaction: applications and services: 16th international conference, HCI International 2014, Heraklion, Crete, Greece, June 22-27, 2014, proceedings. Part III (363–373). https://doi.org/10.1007/978-3-319-07227-2_35

A Continuous Performance Test (CPT) was incorporated into a smartphone application (App) to measure three symptom domains associated with Attention Deficit Hyperactivity Disorder (ADHD); attention, impulsivity and hyperactivity. The App was pilot tes... Read More about Snappy App: a mobile continuous performance test with physical activity measurement for assessing Attention Deficit Hyperactivity Disorder.

Practical limitation on operation of nonlinear parity-time Bragg gratings (2014)
Conference Proceeding
Phang, S., Vukovic, A., Susanto, H., Benson, T. M., & Sewell, P. (2014). Practical limitation on operation of nonlinear parity-time Bragg gratings.

The paper analyses the operation of PT Bragg gratings when the dielectric material is considered to be both dispersive and nonlinear and gain and loss are saturable. The paper demonstrates the application of the nonlinear PT Bragg Grating as an optic... Read More about Practical limitation on operation of nonlinear parity-time Bragg gratings.

Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients (2014)
Journal Article
Grubb, M., Carpenter, J., Crowe, J. A., Teoh, J., Marlow, N., Ward, C., …Hayes-Gill, B. R. (2014). Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients. Physiological Measurement, 35(5), https://doi.org/10.1088/0967-3334/35/5/881

Around 5%–10% of newborn babies require some form of resuscitation at birth and heart rate (HR) is the best guide of efficacy. We report the development and first trial of a device that continuously monitors neonatal HR, with a view to deployment in... Read More about Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients.

A hybrid inverter solution for medium voltage applications using series capacitor and a CSI Active Power Filter (SC-APF) (2014)
Conference Proceeding
Papadopoulos, S., Rashed, M., Klumpner, C., & Wheeler, P. (2014). A hybrid inverter solution for medium voltage applications using series capacitor and a CSI Active Power Filter (SC-APF). In 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014). https://doi.org/10.1049/cp.2014.0456

This paper proposes a new hybrid inverter solution for medium/high voltage applications that consists of a slow switching inverter using high voltage or series connected switching devices, fitted with a low kVA rated auxiliary current source inverter... Read More about A hybrid inverter solution for medium voltage applications using series capacitor and a CSI Active Power Filter (SC-APF).

Intelligent impedance based fault-location for zonal power systems (2014)
Conference Proceeding
Rose, C. J., Thomas, D. W., Sumner, M., Christopher, E., & Lopez Arevalo, S. (2014). Intelligent impedance based fault-location for zonal power systems.

A laboratory based demonstrator has been constructed to study the Active Impedance Estimation (AIE) technique as a means of locating faults on a power system. The demonstrator has been used to verify results from simulation experimentally. The AIE sy... Read More about Intelligent impedance based fault-location for zonal power systems.

A non-destructive study of crack development during thermal cycling of Al wire bonds using x-ray computed tomography (2014)
Conference Proceeding
Agyakwa, P., Yang, L., Corfield, M., & Johnson, C. M. (2014). A non-destructive study of crack development during thermal cycling of Al wire bonds using x-ray computed tomography.

This paper concerns the non-destructive visualisation of the evolution of damage within ultrasonically bonded alumini-um wires using three dimensional x-ray computed tomography. We demonstrate the potential to observe the progressive accumulation of... Read More about A non-destructive study of crack development during thermal cycling of Al wire bonds using x-ray computed tomography.

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.

Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation (2014)
Journal Article
Smith, R. J., Li, W., Coulson, J., Clark, M., Somekh, M. G., & Sharples, S. D. (2014). Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation. Measurement Science and Technology, 25(5), Article 055902. https://doi.org/10.1088/0957-0233/25/5/055902

Measuring the grain structure of aerospace materials is very important to understand their mechanical properties and in-service performance. Spatially resolved acoustic spectroscopy is an acoustic technique utilizing surface acoustic waves to map the... Read More about Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation.

Implementation of a multi-level Power Electronic Inverter library in Modelica (2014)
Conference Proceeding
Hill, C., Giangrande, P., Gerada, C., & Bozhko, S. (in press). Implementation of a multi-level Power Electronic Inverter library in Modelica.

This paper presents a newly developed Power Electronic Inverter library in Modelica. The library utilises a multi-level approach with increasing model complexity at progressively higher levels. All levels are fully interchangeable so as to provide a... Read More about Implementation of a multi-level Power Electronic Inverter library in Modelica.