- Date:
- 2015-2019
- Themes:
- High Voltage Engineering, Modelling and Simulation, Marine Energy
- Funding:
- ASU Applied science University, Jordan
The aim will be to investigate the effect of thermal and mechanical stresses on the electric field intensity that could subsequently lead to stress enhancement or partial discharge. The project can be divided into three main stages. Firstly, thermal mechanical deformation, gaps and the possibility of void under multi-stresses in joints (at the interface of insulation materials) will be verified. Then, the electric field will be examined in the faulty regions if any is formed. Then, a numerical model will be established to estimate the pressure at the interface. The second stage, will examine the effect of mechanical stresses at interfaces in three core cables by coupled thermal mechanical electrical model.
Primary investigators
- Paul Lewin
- jp2
Secondary investigator
- mah1e13
Associated research group
- Electronics and Computer Science
- Date:
- 2015-2018
- Themes:
- High Voltage Engineering, Solid dielectrics, Marine Energy
- Funding:
- European Commission, H2020
The SPARCARB research project is a European project under the Marie Sklodowska-Curie Actions, Innovative Training Networks (ITN). The main aim is to address the electrical, thermal and mechanical response of wind turbine (WT) blade, carbon fibre reinforced polymer (CFRP) components to lightning impulses, as well as the development of novel CFRP material systems (main focus on nano-modified resin systems) and equipotential bonding concepts. SPARCARB is composed of four PhD individual projects (subprojects) and two of these are within the EPE group.
Primary investigators
- Paul Lewin
- Igor Golosnoy
- Thomas Andritsch
- Professor Ole Thybo Thomsen
- Professor Janice M Barton
Secondary investigators
- Orestis Vryonis
- Andrea A. M. Laudani
- Evangelos Senis
- Timothy M. Harrell
Partner
- GLPS A/S, Denmark
Associated research group
- Electronics and Computer Science
- Date:
- 2014-2018
- Themes:
- High Voltage Engineering, Condition monitoring
To investigate the surface discharge at the inter-phase pressboard, solid-liquid insulator system, in a power transformer. The results could help the on-line condition monitoring of in-serviced power transformer
Primary investigators
Secondary investigator
- Wetarin Thansiphraserth
Associated research group
- Electronics and Computer Science
- Date:
- 2014-2018
- Themes:
- High Voltage Engineering, Space and surface charge
In our research, we intend to explore the relationship between ageing and trapping parameters and use the initial trapping parameters and breakdown strength to infer breakdown behaviour after ageing, which means trapping parameters can be utilized to assess the ageing degree of insulation in HVDC system and predict its lifetime.
Primary investigator
Secondary investigator
- Ziyun Li
Associated research group
- Electronics and Computer Science
- Date:
- 2016-2019
- Theme:
- High Voltage Engineering
- Funding:
- EPSRC, QinetiQ
This project is concerned with researching potential technologies for, and the development of a prototype design for, a DC power supply capable of producing 2MW at 1MV with low voltage ripple. Because of the hazardous (potentially fatal) nature of a fault, such as a short circuit, which may appear in a device with a large amount of stored energy, there is an additional requirement that the design should store as little energy as possible. In addition to this, the device should be as small as possible, necessitating a high power density, and should be powered by a standard three phase mains outlet. Finally, it has been requested that SF6 is not used in the design. In order to meet these requirements, this project will need to include an extensive investigation into existing power supply technologies. Followed by a detailed study into each of them, consisting of simulations and experiments, to determine their suitability for a supply that meets the afore mentioned specifications. The project will also look into suitable materials for the construction of such a supply.
Primary investigators
- Paul Lewin
- jp2
Secondary investigator
- rf6g13
Associated research group
- Electronics and Computer Science
- Date:
- 2018-2020
- Themes:
- High Voltage Engineering, Environmental modelling
- Funding:
- National Grid plc
To tackle issues relating to the external thermal environment of the transformer over the time frame from now until the end of the century. This has included the effect of the climate change and also the urban heat island to the transformer ratings.
Primary investigators
- Paul Lewin
- jp2
Secondary investigators
- Dr Nik Hakimi Nik Ali
- Dr George Callender
- Atip Doolgindachbaporn
Associated research group
- Electronics and Computer Science
- Date:
- 2016-2020
- Themes:
- Modelling and Simulation, Marine Energy
- Funding:
- Hellenic Cables S.A.
Standard current rating methods need to be reviewed in terms of HVAC cables, since further optimisation in cable design is increasingly required. The main objective of this project is to identify the possible gaps existing in the current Standard version, while solutions, which could improve its accuracy, will be suggested. Hence, safer and, in many cases, more optimistic results will be provided.
Primary investigators
- Paul Lewin
- jp2
Secondary investigator
- dc2r15
Associated research group
- Electronics and Computer Science
- Date:
- 2016-2020
- Themes:
- Applied Electromagnetism, Plasma and Space Science
- Funding:
- EPSRC
The development of Liquid Pulsed Plasma Thrusters (LPPTs) has been previously implemented using conventional PPT designs and sub-components. However, the change in propellant attracts a need to adapt existing sub-components to enhance the electrical and operational efficiency, as well as the specific impulse, lifetime and scaling possibilities of the technology. The novelty lies in redesigning the ignition and feeding systems, based on the electrowetting effect. It is predicted that ignition voltage can be minimised and the principal feeding system would function without the input of additional electrical energy, in comparison to previous designs.
Primary investigators
Secondary investigator
Associated research group
- Electronics and Computer Science
- Date:
- 2016-2020
- Themes:
- Nanomaterials and Dielectrics, Solid dielectrics
- Funding:
- AWE (iCASE)
Full Title: Linking the Thermal, Morphological and Electrical Properties of Polymer Composites containing Polyethylene or Polypropylene with Ethylene-Vinyl-Acetate and an Organoclay
To study ternary material systems that are compatibilised by one of the three components and understand how their morphology links to their thermal and their electrical properties to better inform material research and development in the future.
Primary investigators
- asv
- Thomas Andritsch
Secondary investigator
- avb2g12
Associated research group
- Electronics and Computer Science
- Date:
- 2014-2018
- Themes:
- Applied Electromagnetism, Plasma and Space Science
- Funding:
- EPSRC
The development of long life high powered (>30A) hollow cathodes is of importance to meet the demand of increasingly powerful Gridded Ion engines and Hall Effect thrusters. High power cathodes typically operate at greater temperature ranges with LaB6 emitters, which poses a significant challenge to maintain heater reliability. The heater component commonly used to raise the insert to emissive temperatures, has inherent reliability issues from thermal fatigue caused by the thermal cycling with large temperature variations. A self-heating hollow cathode allows for potentially higher reliability through the design simplicity of removing the heater component. This also results in significant cost savings, and there is potential savings in the mass, volume, ignition time and power. The aim of the overall project is to investigate heaterless ignition characteristics to enable HHC designs with reasonable starting characteristics i.e. <20 sccm and <500 V ignition voltages.
Primary investigators
Secondary investigator
- ajdi1g14
Associated research group
- Electronics and Computer Science