All Outputs (376)

Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application (2018)
Conference Proceeding
Fritz, N., Rashed, M., Bozhko, S., Cuomo, F., & Wheeler, P. (2018). Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application.

A design procedure for the Dual Active Bridge (DAB) converter is presented, which aims to optimized power density and computational effort. When designing a DAB, the selection of circuit design parameters such as switching frequency, leakage inductan... Read More about Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application.

Wide frequency range active damping of LCL-filtered grid connected converters (2018)
Conference Proceeding
Ghanem, A., Rashed, M., Sumner, M., El-Sayes, M., & Mansy, I. (2018). Wide frequency range active damping of LCL-filtered grid connected converters.

It can be challenging to guarantee the stability of grids with many converters with LCL filters connected due to the presence of multiple resonances within the system. This paper presents an active damping technique to mitigate multiple resonance eff... Read More about Wide frequency range active damping of LCL-filtered grid connected converters.

Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry (2018)
Conference Proceeding
La Rocca, S., Pickering, S., Eastwick, C. N., Gerada, C., & Rönnberg, K. (2018). Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry.

In this paper a typical small low voltage TEFC motor (output power ~10 kW) has been studied using computational fluid dynamics. The complexity of the end winding geometries, often consisting of several insulated copper strands bound together, provide... Read More about Fluid flow and heat transfer analysis of TEFC machine end regions using more realistic end-winding geometry.

An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications (2018)
Conference Proceeding
Li, C., Yang, T., Lo Calzo, G., Bozhko, S., Gerada, C., & Wheeler, P. (2018). An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications.

Electrical starter/generator (ESG) system is one of the key innovations of more-electric aircraft initiative. The ESG cranks the engine and accelerates it up to self-sustained speed using electric energy (starter mode) and then runs as a generator to... Read More about An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications.

GaN HEMT gate-driver for achieving high power converter integration levels (2018)
Conference Proceeding
Wu, H., Garcia, J., & Castellazzi, A. (2018). GaN HEMT gate-driver for achieving high power converter integration levels.

This work proposes a solution for implementing an isolated gate driver for GaN HEMTs based on the previous topology for SiC power MOSFETs. The isolation of the gate driver is realised by the single transformer topology with double winding in the sec... Read More about GaN HEMT gate-driver for achieving high power converter integration levels.

Static and dynamic TSEPs of SiC and GaN transistors (2018)
Conference Proceeding
Zhu, S., Fayyaz, A., & Castellazzi, A. (2018). Static and dynamic TSEPs of SiC and GaN transistors.

This paper investigates the static and dynamic temperature sensitive electrical parameters (TSEPs) for both SiC and GaN transistors. It is shown that both the qualitative and quantitative temperature characteristics of these parameters are various wh... Read More about Static and dynamic TSEPs of SiC and GaN transistors.

Model predictive control for Active-Bridge-Active-Clamp (ABAC) converter (2018)
Conference Proceeding
Chen, L., Tarisciotti, L., Costabeber, A., Gottardo, D., Zanchetta, P., & Wheeler, P. (2018). Model predictive control for Active-Bridge-Active-Clamp (ABAC) converter.

The Dual-Active-Bridge is a well-established isolated, bidirectional DC/DC topology suitable for applications where high efficiency, galvanic isolation and large voltage conversion ratios are required. However, in low voltage high power cases, the ou... Read More about Model predictive control for Active-Bridge-Active-Clamp (ABAC) converter.

Towards a predictive model of driver acceptance of active collision avoidance systems (2018)
Conference Proceeding
Large, D., Banks, V., Burnett, G., & Harvey, C. (2018). Towards a predictive model of driver acceptance of active collision avoidance systems. In Proceedings of 7th Transport Research Arena TRA 2018, April 16 - 19, 2018, Vienna, Austria. https://doi.org/10.5281/zenodo.1222174

Drivers’ acceptance of advanced-driver-assistance-systems (ADAS), such as pedestrian alert systems (PAS), is vital if the full benefits are to be realised. However, the adoption and continued use of such technology is not only contingent on the syste... Read More about Towards a predictive model of driver acceptance of active collision avoidance systems.

End-to-end audiovisual speech recognition (2018)
Conference Proceeding
Petridis, S., Stafylakis, T., Ma, P., Cai, F., Tzimiropoulos, G., & Pantic, M. (2018). End-to-end audiovisual speech recognition.

Several end-to-end deep learning approaches have been recently presented which extract either audio or visual features from the input images or audio signals and perform speech recognition. However, research on end-to-end audiovisual models is very l... Read More about End-to-end audiovisual speech recognition.

Deep word embeddings for visual speech recognition (2018)
Conference Proceeding
Stafylakis, T., & Tzimiropoulos, G. (2018). Deep word embeddings for visual speech recognition.

In this paper we present a deep learning architecture for extracting word embeddings for visual speech recognition. The embeddings summarize the information of the mouth region that is relevant to the problem of word recognition, while suppressing ot... Read More about Deep word embeddings for visual speech recognition.

Performance improvement of the CFM56-3 aircraft engine by electric power transfer (2018)
Conference Proceeding
Enalou, H. B., & Bozhko, S. (2018). Performance improvement of the CFM56-3 aircraft engine by electric power transfer. In Proceedings of 13th European Conference on Turbomachinery Fluid dynamics & Thermodynamics (ETC13)

With the design trends towards the More Electric Engine (MEE) for the More Electric Aircraft (MEA), areas for novel technologies can be pinpointed for multi-spool engines, introducing remarkable improvements to push the boundaries of propulsion techn... Read More about Performance improvement of the CFM56-3 aircraft engine by electric power transfer.

Device loss model of a fully SiC based dual active bridge considering the effect of synchronous rectification and deadtime (2018)
Conference Proceeding
Wang, Z., & Castellazzi, A. (2018). Device loss model of a fully SiC based dual active bridge considering the effect of synchronous rectification and deadtime. In Proceedings - 2017 IEEE Southern Power Electronics Conference (SPEC) (1-7). https://doi.org/10.1109/SPEC.2017.8333662

It is becoming a great interest to employ SiC based power devices in dual active bridge (DAB) converter as an alternative to conventional Si-IGBT, due to its higher switching frequency potential, smaller switching losses as well as the capability to... Read More about Device loss model of a fully SiC based dual active bridge considering the effect of synchronous rectification and deadtime.

Operation principles of quasi Z-source modular multilevel converters (2018)
Conference Proceeding
Khera, F. A., Klumpner, C., & Wheeler, P. W. (2018). Operation principles of quasi Z-source modular multilevel converters. In Proceedings 2017 IEEE Southern Power Electronics Conference (SPEC) (1-6). https://doi.org/10.1109/SPEC.2017.8333617

This paper proposes the integration of a quasi Z-source network with a modular multilevel converter (MMC) to provide voltage boost capability. The proposed quasi-Z-source MMC uses two symmetrical networks of inductors and capacitors connected between... Read More about Operation principles of quasi Z-source modular multilevel converters.

Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence (2018)
Conference Proceeding
Key, S., La Rocca, A., Fay, M., Rance, G., & Growney , D. (2018). Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence. In SAE Technical Paper. https://doi.org/10.4271/2018-01-0935

The size and morphology of soot particles and agglomerates extracted from lubricating oil drawn from the sump of a diesel engine have been investigated and compared using Transmission Electron Microscopy (TEM) and Nanoparticle Tracking Analysis (NTA)... Read More about Morphological Characterisation of Diesel Soot in Oil and the Associated Extraction Dependence.

How stress affects functional near-infrared spectroscopy (fNIRS) measurements of mental workload (2018)
Conference Proceeding
Alsuraykh, N. H., Maior, H. A., Wilson, M. L., Tennent, P., & Sharples, S. (2018). How stress affects functional near-infrared spectroscopy (fNIRS) measurements of mental workload. In CHI EA '18 Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems. https://doi.org/10.1145/3170427.3188646

Recent work has demonstrated that functional Near-Infrared Spectroscopy has the potential to measure changes in Mental Workload with increasing ecological validity. It is not clear, however, whether these measurements are affected by anxiety and stre... Read More about How stress affects functional near-infrared spectroscopy (fNIRS) measurements of mental workload.

Common shared system model for evolvable assembly systems (2018)
Conference Proceeding
Sanderson, D., Chaplin, J., & Ratchev, S. (2018). Common shared system model for evolvable assembly systems.

A vital aspect of distributed control in an adaptable production system is coherence between each system resource. The Evolvable Assembly Systems project addresses this challenge using a common shared system model. This paper provides an overview of... Read More about Common shared system model for evolvable assembly systems.

Low-Cost Automatic Ambient Assisted Living System (2018)
Conference Proceeding
Malekmohamad, H., Moemeni, A., Orun, A., & Purohit, J. K. (2018). Low-Cost Automatic Ambient Assisted Living System. In 2018 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops) (693-697). https://doi.org/10.1109/PERCOMW.2018.8480390

The recent increase in ageing population in countries around the world has brought a lot of attention toward research and development of ambient assisted living (AAL) systems. These systems should be inexpensive to be installed in elderly homes, prot... Read More about Low-Cost Automatic Ambient Assisted Living System.

Fabric sensors – modelling deformation in knitted fabrics (2018)
Conference Proceeding
Miller, K., Brown, L. P., & McNally, D. (2018). Fabric sensors – modelling deformation in knitted fabrics.

Fabric sensors are made from knitted conductive yarn and can be used to measure extension in wearable technologies and composite structures. Wearable technologies have considerable potential in sport and medical applications, for example recording li... Read More about Fabric sensors – modelling deformation in knitted fabrics.

Design and testing of electromechanical actuator for aerospace applications (2018)
Conference Proceeding
Papini, L., Connor, P., Patel, C., Empringham, L., Gerada, C., & Wheeler, P. (2018). Design and testing of electromechanical actuator for aerospace applications. In 2018 25th International Workshop on Electric Drives: Optimization in Control of Electric Drives (IWED2018) - Proceedings (1-6). https://doi.org/10.1109/IWED.2018.8321392

Electromechanical actuators are gaining interest in the aerospace industry within the More Electrical Aircraft (MEA) architecture. The end-goal of fully electric aircraft includes Electromechanical actuation for flight control systems. The design and... Read More about Design and testing of electromechanical actuator for aerospace applications.

Comparison of thermal and reliability performance between a SiC MOSFET module with embedded decoupling capacitors and commercial Si IGBT power modules (2018)
Conference Proceeding
Yang, L., Agyakwa, P., Corfield, M., Johnson, M., Harris, A., Packwood, M., & Paciura, K. (2018). Comparison of thermal and reliability performance between a SiC MOSFET module with embedded decoupling capacitors and commercial Si IGBT power modules.

This paper characterizes thermal and reliability performance of a SiC MOSFET power module with embedded decoupling capacitors and without anti-parallel diodes. Active and passive temperature cycling, supported by transient thermal impedance character... Read More about Comparison of thermal and reliability performance between a SiC MOSFET module with embedded decoupling capacitors and commercial Si IGBT power modules.