All Outputs (95)

Optimization of thermal management and power density of small-scale wind turbine applications using SiC-MOSFETs (2017)
Conference Proceeding
Hussein, A., & Castellazzi, A. (in press). Optimization of thermal management and power density of small-scale wind turbine applications using SiC-MOSFETs.

This paper presents an optimized design of 12kW 2L-FB inverter for small-scale wind turbine, taking into account some specific behavioral features of SiC power MOSFETs. Power converters used in renewable energy conversion have to deal with intermitte... Read More about Optimization of thermal management and power density of small-scale wind turbine applications using SiC-MOSFETs.

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.

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.

Chip-on-board assembly of 800V Si L-IGBTs for high performance ultra-compact LED drivers (2017)
Conference Proceeding
Aliyu, A. M., Mouawad, B., Castellazzi, A., Rajaguru, P., Bailey, C., Pathirana, V., …Udrea, F. (in press). Chip-on-board assembly of 800V Si L-IGBTs for high performance ultra-compact LED drivers.

This paper presents a novel chip on board assembly design for an integrated power switch, based on high power density 800V silicon lateral insulated-gate bipolar transistor (Si LIGBT) technology. LIGBTs offer much higher current densities (5-10X), si... Read More about Chip-on-board assembly of 800V Si L-IGBTs for high performance ultra-compact LED drivers.

Pressure contact multi-chip packaging of SiC Schottky diodes (2017)
Conference Proceeding
Gonzalez, J. O., Alatise, O., Mawby, P., Aliyu, A. M., & Castellazzi, A. (in press). Pressure contact multi-chip packaging of SiC Schottky diodes.

Pressure contact packages have demonstrated an improved reliability for silicon devices due to the elimination of the weak elements of the packaging, namely wirebonds and solder. This packaging approach has not yet been widely studied for SiC devices... Read More about Pressure contact multi-chip packaging of SiC Schottky diodes.

Experimental study of the short-circuit performance for a 600V normally-off p-gate GaN HEMT (2017)
Conference Proceeding
Oeder, T., Castellazzi, A., & Pfost, M. (in press). Experimental study of the short-circuit performance for a 600V normally-off p-gate GaN HEMT.

In this paper, the short-circuit robustness of a normally off GaN HEMT is investigated in relation to applied bias conditions and pulse duration. The results align with previous studies on normally-on devices in highlighting an electrical type of fai... Read More about Experimental study of the short-circuit performance for a 600V normally-off p-gate GaN HEMT.

Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications (2017)
Conference Proceeding
Bhaskar, M. S., Padmanaban, S., Fedak, V., Blaabjerg, F., & Wheeler, P. (2017). Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications. In Proceedings - 2017 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2017 and 2017 Intl Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2017 (777-782). https://doi.org/10.1109/OPTIM.2017.7975063

This treatise deals with Transistor Clamped Five Level Inverter using Non-Inverting Double Reference Single Carrier PWM (NIDRSC PWM) Technique. Conventional or two level inverter have drawbacks like: i) Requirement of fast switching devices, ii) Very... Read More about Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications.

Speed control for multi-three phase synchronous electrical motors in fault condition (2017)
Conference Proceeding
Galassini, A., Costabeber, A., & Gerada, C. (2017). Speed control for multi-three phase synchronous electrical motors in fault condition.

The growth of electrification transportation systems is an opportunity for delving into new feasible solutions for more reliable and fault tolerant arrangements. So far, many investigations distant from the market have been carried out. Most of the w... Read More about Speed control for multi-three phase synchronous electrical motors in fault condition.

Enhancing electromagnetic launch capability: design of a small launch system for large UAVs (2017)
Conference Proceeding
Cox, T., Yang, T., & Gerada, C. (2017). Enhancing electromagnetic launch capability: design of a small launch system for large UAVs.

Unmanned Aerial Vehicles (UAVs) play a critical and increasing role in modern combat, giving significantly enhanced surveillance, communication and strike capabilities. There are currently a large range of UAV’s available, but in general the more cap... Read More about Enhancing electromagnetic launch capability: design of a small launch system for large UAVs.

Analysis of salient-pole synchronous generators operating in single-phase condition (2017)
Conference Proceeding
Spagnolo, C., Nuzzo, S., Serra, G., Gerada, C., & Galea, M. (2017). Analysis of salient-pole synchronous generators operating in single-phase condition. In 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (33-38). https://doi.org/10.1109/WEMDCD.2017.7947720

The power generation industry has recently started to invest interest and focus on the single-phase operation of traditional three-phase, wound-field, synchronous generators. This is partially due to a combination of customer requirements and the nee... Read More about Analysis of salient-pole synchronous generators operating in single-phase condition.

Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications (2017)
Conference Proceeding
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2017). Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications. In Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (45-51). https://doi.org/10.1109/WEMDCD.2017.7947722

This paper investigates the capability of both permanent magnet synchronous machine (PMSM) and permanent magnet flux switching (PMFS) machine to provide high torque to inertia ratio for applications with demanding response in terms of acceleration an... Read More about Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications.

Power quality improvement by pre-computed modulated field current for synchronous generators (2017)
Conference Proceeding
Fallows, D., Nuzzo, S., Costabeber, A., & Galea, M. (2017). Power quality improvement by pre-computed modulated field current for synchronous generators. In 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (127-131). https://doi.org/10.1109/WEMDCD.2017.7947735

Although power quality aspects of electrical machines have been extensively studied and investigated for a large number of years, room for improvement still exists in the field of classic, wound-field, synchronous generators. This paper proposes an i... Read More about Power quality improvement by pre-computed modulated field current for synchronous generators.

Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators (2017)
Conference Proceeding
Wang, Y., Vakil, G., Nuzzo, S., Degano, M., Galea, M., Gerada, C., …Brown, N. (2017). Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators. In Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (163-168). https://doi.org/10.1109/WEMDCD.2017.7947741

Objective of this paper is to provide design recommendations to improve the performance and power density of a 400kVA salient-pole synchronous generator, without exceeding the limitations due to critical parameters such as total harmonic distortion o... Read More about Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators.

Design optimization of integrated rotor-less inductors for high-speed AC drive applications (2017)
Conference Proceeding
Raza Khowja, M., Gerada, C., Vakil, G., Patel, C., & Wheeler, P. (in press). Design optimization of integrated rotor-less inductors for high-speed AC drive applications. In 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (69-74)

Discrete sub-system due to passive elements in motor drive require functional and structural integration to make efficient and power dense overall system. Such power dense system is the prerequisite in aerospace and marine applications. This paper pr... Read More about Design optimization of integrated rotor-less inductors for high-speed AC drive applications.

uCube: Control platform for power electronics (2017)
Conference Proceeding
Galassini, A., Lo Calzo, G., Formentini, A., Gerada, C., Zanchetta, P., & Costabeber, A. (2017). uCube: Control platform for power electronics. In Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (216-221). https://doi.org/10.1109/WEMDCD.2017.7947749

This paper presents a versatile tool for development, control and testing of power electronics converters. In the last decade, many different expensive off-the-shelf tools for rapid prototyping and testing have been developed and commercialised by fe... Read More about uCube: Control platform for power electronics.

Highly-integrated power cell for high-power wide band-gap power converters (2017)
Conference Proceeding
Espina, J., Ahmadi, B., Empringham, L., De Lillo, L., & Johnson, C. M. (2017). Highly-integrated power cell for high-power wide band-gap power converters.

The fast switching speeds and low specific conduction losses of wide band-gap semiconductors allow the realisation of high-frequency, high power-density switching converters with dramatically reduced passive component requirements compared to Silicon... Read More about Highly-integrated power cell for high-power wide band-gap power converters.

Design and construction of a co-planar power bus interconnect for low inductance switching (2017)
Conference Proceeding
Lin, X., Li, J., & Johnson, M. (2017). Design and construction of a co-planar power bus interconnect for low inductance switching. In 2017 IEEE International Workshop On Integrated Power Packaging (IWIPP) (1-4). https://doi.org/10.1109/IWIPP.2017.7936755

A co-planar tab-slot type of interconnect demonstrator for connecting power switching devices and DC bus capacitors has been designed and constructed, aimed at low inductance switching. The demonstrator is composed of a double-sided tab connector and... Read More about Design and construction of a co-planar power bus interconnect for low inductance switching.

A novel multi-modular series HVDC tap (2017)
Conference Proceeding
Tang, Y., Watson, A., Wheeler, P., Farr, E., & Feldman, R. (2017). A novel multi-modular series HVDC tap. In 13th IET International Conference on AC and DC Power Transmission (ACDC 2017) (1-6). https://doi.org/10.1049/cp.2017.0044

Tapping energy from a HVDC transmission line to serve small remote communities has been considered by researchers and HVDC manufacturers since the 1960s. Many HVDC taps proposed consider the performance of diodes, Thyristors and GTOs and the utilizat... Read More about A novel multi-modular series HVDC tap.

Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs (2017)
Conference Proceeding
Fayyaz, A., Castellazzi, A., Romano, G., Riccio, M., Urresti, J., & Wright, N. (2017). Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs.

This paper investigates the effect of negative gate bias voltage (VGS) on the avalanche breakdown robustness of commercial state-of-the-art silicon carbide (SiC) power MOSFETs. The device’s ability to withstand energy dissipation during avalanche reg... Read More about Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs.

A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage (2017)
Conference Proceeding
Nuzzo, S., Bolognesi, P., Galea, M., & Gerada, C. (2017). A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage.

The equivalent circuit approach has been widely exploited for the theoretical analysis of electromagnetic devices. However, in the field of classical wound-field synchronous generators, the presence of the damper cage complicates the analysis of such... Read More about A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage.