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SiC/GaN power semiconductor devices: a theoretical comparison and experimental evaluation under different switching conditions (2017)
Journal Article
Li, K., Evans, P., & Johnson, M. (in press). SiC/GaN power semiconductor devices: a theoretical comparison and experimental evaluation under different switching conditions. IET Electrical Systems in Transportation, https://doi.org/10.1049/iet-est.2017.0022

The conduction and switching losses of SiC and GaN power transistors are compared in this paper. Voltage rating of commercial GaN power transistors is less than 650V while that of SiC power transistors is less than 1200V. The paper begins with a theo... Read More about SiC/GaN power semiconductor devices: a theoretical comparison and experimental evaluation under different switching conditions.

The Alternate Arm Converter (AAC) - "short-overlap" mode operation - analysis and design parameter selection (2017)
Journal Article
Farr, E., Feldman, R., Clare, J. C., Watson, A. J., & Wheeler, P. (2018). The Alternate Arm Converter (AAC) - "short-overlap" mode operation - analysis and design parameter selection. IEEE Transactions on Power Electronics, 33(7), 5641-5659. https://doi.org/10.1109/TPEL.2017.2742899

This paper presents converter operation principles and theoretical analyses for “short-overlap” mode operation of the Alternate Arm Converter (AAC), which is a type of modular multilevel Voltage Source Converter (VSC) that has been proposed for HVDC... Read More about The Alternate Arm Converter (AAC) - "short-overlap" mode operation - analysis and design parameter selection.

Using multi time-scale electro-thermal simulation approach to evaluate SiC-MOSFET power C=converter in virtual prototyping design tool (2017)
Conference Proceeding
Li, K., Evans, P., & Johnson, C. M. (in press). Using multi time-scale electro-thermal simulation approach to evaluate SiC-MOSFET power C=converter in virtual prototyping design tool.

Using virtual prototyping (VP) design tool to eval¬uate power converter electro-thermal performance can help designers to validate prototype in a quick way. However, different system time-scale requires efficient electro-thermal simulation techniques... Read More about Using multi time-scale electro-thermal simulation approach to evaluate SiC-MOSFET power C=converter in virtual prototyping design tool.

Grid impedance estimation for islanding detection and adaptive control of converters (2017)
Journal Article
Ghanem, A., Rashed, M., Sumner, M., Elsayes, M. A., & Mansy, I. (2017). Grid impedance estimation for islanding detection and adaptive control of converters. IET Power Electronics, 10(11), 1279-1288. https://doi.org/10.1049/iet-pel.2016.0780

Power system (grid) impedance is time varying due to the changing structure of the power system configuration and it can have a considerable influence on the control and stability of grid connected converters. This paper presents an online grid imped... Read More about Grid impedance estimation for islanding detection and adaptive control of converters.

Thermal investigation on HSPM with new alloy sleeve (2017)
Conference Proceeding
Zhang, X., Li, W., Zhang, H., Gerada, C., Gerada, D., & Li, J. (2017). Thermal investigation on HSPM with new alloy sleeve. . https://doi.org/10.1109/ICEMS.2017.8056423

This paper presents a developed copper-iron alloy which made as the rotor sleeve in a high speed permanent magnetic machine (HSPMG), whist investigating its benefits in improve machine thermal performance. The features of the new alloy is experimenta... Read More about Thermal investigation on HSPM with new alloy sleeve.

On a low-frequency and refinement stable PMCHWT integral equation leveraging the quasi-Helmholtz projectors (2017)
Journal Article
Beghein, Y., Mitharwal, R., Cools, K., & Andriulli, F. P. (in press). On a low-frequency and refinement stable PMCHWT integral equation leveraging the quasi-Helmholtz projectors. IEEE Transactions on Antennas and Propagation, https://doi.org/10.1109/TAP.2017.2738061

Classical Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) formulations for modeling radiation and scattering from penetrable objects suffer from ill-conditioning when the frequency is low or when the mesh density is high. The most effective techniques... Read More about On a low-frequency and refinement stable PMCHWT integral equation leveraging the quasi-Helmholtz projectors.

IGBT-SiC dual fed open end winding PMSM drive (2017)
Conference Proceeding
Rovere, L., Formentini, A., Lo Calzo, G., Cox, T., & Zanchetta, P. (in press). IGBT-SiC dual fed open end winding PMSM drive.

This paper proposes a dual fed common dc link inverter Open End Winding-Permanent Magnet Synchronous Motor (OEW-PMSM) Drive. In order to increase the system efficiency a dual technology converter is used, with one inverter composed of standard IGBT d... Read More about IGBT-SiC dual fed open end winding PMSM drive.

A double end fault location technique for distribution systems based on fault-generated transients (2017)
Conference Proceeding
Aboshady, F., Sumner, M., & Thomas, D. W. (2017). A double end fault location technique for distribution systems based on fault-generated transients.

This paper presents a fault location technique for distribution systems. It is a two end impedance based technique that uses the fault generated transients to estimate the fault distance over a broad range of frequencies. Then, curve fitting is appli... Read More about A double end fault location technique for distribution systems based on fault-generated transients.

Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems (2017)
Conference Proceeding
Fares, A., Klumpner, C., & Sumner, M. (2017). Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems. In 2017 IEEE International Symposium on Industrial Electronics (ISIE) (2123-2130). https://doi.org/10.1109/ISIE.2017.8001586

The Performance of battery packs is highly affected by imbalances between the series connected cells that provide the required string voltage. A modular battery implementation based on cascaded converters can have advantages over traditional centrali... Read More about Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems.

Ultracapacitor storage enabled global MPPT for photovoltaic central inverters (2017)
Conference Proceeding
Muller, N., Renaudineau, H., Kouro, S., & Wheeler, P. (2017). Ultracapacitor storage enabled global MPPT for photovoltaic central inverters. In 2017 IEEE 26th International Symposium on Industrial Electronics (ISIE) (1046-1051). https://doi.org/10.1109/ISIE.2017.8001390

In most large-scale grid-tied photovoltaic (PV) plants, central inverter configurations are used, mainly due to higher converter efficiency and lower cost per kW. However, compared to other configurations, its Maximum Power Point Tracking (MPPT) effi... Read More about Ultracapacitor storage enabled global MPPT for photovoltaic central inverters.

Being a member of an energy community: Assessing the financial benefits for end-users and management authority (2017)
Conference Proceeding
Panagiotou, K., Klumpner, C., & Sumner, M. (2017). Being a member of an energy community: Assessing the financial benefits for end-users and management authority. In 2017 IEEE 26th International Symposium on Industrial Electronics (ISIE) (957-963). https://doi.org/10.1109/ISIE.2017.8001375

Since 2011, in the context of sustainable development, UK government has been encouraging individuals to work as groups, and now, more than 5,000 community led projects are sprouted across the country, since more than 50% of the UK citizens had expre... Read More about Being a member of an energy community: Assessing the financial benefits for end-users and management authority.

A flow-induced structure-based kinetic energy harvester (2017)
Conference Proceeding
Zhang, G., Lin, Y., & Klumpner, C. (2017). A flow-induced structure-based kinetic energy harvester.

In this paper, a strategy utilizing a pair of cylinders which are put on the both sides of the cantilever beam and perpendicular to the water flow direction to harvest the energy is demonstrated. The novel flow induced structure based energy harveste... Read More about A flow-induced structure-based kinetic energy harvester.

Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties (2017)
Journal Article
Sumsurooah, S., Odavic, M., Bozhko, S., & Boroyevich, D. (in press). Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2017.2736023

Stability studies are a crucial part of the design of power electronic systems, especially for safety critical ap¬plications. Standard methods can guarantee stability under nominal conditions but do not take into account the multiple uncertainties th... Read More about Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties.

Digital Dead-Beat and Repetitive combined control for stand-alone four-leg VSI (2017)
Journal Article
Lidozzi, A., Ji, C., Solero, L., Zanchetta, P., & Crescimbini, F. (in press). Digital Dead-Beat and Repetitive combined control for stand-alone four-leg VSI. IEEE Transactions on Industry Applications, https://doi.org/10.1109/TIA.2017.2734049

This paper deals with a newly conceived combined control topology. Dead-Beat and Repetitive controllers are proposed to operate jointly in a 4-leg VSI for stand-alone applications. In such mode of operation, dedicated controller has to regulate the i... Read More about Digital Dead-Beat and Repetitive combined control for stand-alone four-leg VSI.

Control of wind energy conversion systems based on the Modular Multilevel Matrix converter (2017)
Journal Article
Diaz, M., Cardenas, R., Espinoza, M., Mora, A., Rojas, F., Clare, J. C., & Wheeler, P. (2017). Control of wind energy conversion systems based on the Modular Multilevel Matrix converter. IEEE Transactions on Industrial Electronics, 64(11), 8799-8810. https://doi.org/10.1109/TIE.2017.2733467

The nominal power of single Wind Energy Conversion Systems (WECS) has been steadily growing, reaching power ratings close to 10MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back... Read More about Control of wind energy conversion systems based on the Modular Multilevel Matrix converter.

Quasi Z-source NPC inverter for PV application (2017)
Conference Proceeding
Effah, F. B., Wheeler, P., Watson, A. J., & Clare, J. C. (2017). Quasi Z-source NPC inverter for PV application. In Proceedings of 2017 IEEE PES PowerAfrica (153-158). https://doi.org/10.1109/PowerAfrica.2017.7991215

This paper presents the operating principles and modified space vector modulation strategy for a three-phase quasi Z-source neutral point clamped inverter for solar photovoltaic applications. This topology combines the advantages of the neutral point... Read More about Quasi Z-source NPC inverter for PV application.

Design and characterization of a diamond-shaped monopole antenna (2017)
Journal Article
Maricar, M. I., Bahar, A., Greedy, S., Smartt, C., Phang, S., Gradoni, G., …Thomas, D. W. P. (2017). Design and characterization of a diamond-shaped monopole antenna. Microwave and Optical Technology Letters, 59(10), 2695-2698. https://doi.org/10.1002/mop.30790

We report a new planar antenna design in the shape of a diamond. The performance of the antenna design is initially obtained through simulation, then fabricated, and its performance evaluated through experiment. Experimental characterization of the d... Read More about Design and characterization of a diamond-shaped monopole antenna.

Full SiC Version of the EDA5 Inverter (2017)
Conference Proceeding
Chowdhury, S., Gurpinar, E., & Castellazzi, A. (2017). Full SiC Version of the EDA5 Inverter. In 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) (406-411). https://doi.org/10.1109/IFEEC.2017.7992072

Recently, a novel hybrid multilevel inverter topology, the EDA5, was presented. The novel inverter topology comprises of two floating capacitors and 16 active switches to achieve five-level output voltage waveform and achieves higher efficiency at lo... Read More about Full SiC Version of the EDA5 Inverter.

Modular integrated SiC MOSFET matrix converter (2017)
Conference Proceeding
Aliyu, A. M., Castellazzi, A., Lasserre, P., & Delmonte, N. (in press). Modular integrated SiC MOSFET matrix converter.

This paper presents the assembly and characterization of an integrated all SiC 3-to-1 phases matrix converter, of typical application in domains requiring harsh environment withstand capability with high reliability and availability levels (e.g., ren... Read More about Modular integrated SiC MOSFET matrix converter.

Holistic electrical machine optimization for system integration (2017)
Conference Proceeding
Gerada, D., Golovanov, D., Xu, Z., Papini, L., Degano, M., Zhang, H., & Gerada, C. (2017). Holistic electrical machine optimization for system integration. In 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) (980-985). https://doi.org/10.1109/IFEEC.2017.7992174

The power density of electrical machines required for transport applications has become a critical aspect and target of optimization. This paper looks at the development aspects of a multi-domain tool to aid for system-level optimization of electrica... Read More about Holistic electrical machine optimization for system integration.