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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.

Permanent magnet machine based starter-generator system with modulated model predictive control (2017)
Journal Article
Yeoh, S. S., Yang, T., Tariscotti, L., Hill, C. I., Bozhko, S., & Zanchetta, P. (in press). Permanent magnet machine based starter-generator system with modulated model predictive control. IEEE Transactions on Transportation Electrification, https://doi.org/10.1109/TTE.2017.2731626

The paper describes a hybrid control scheme for a permanent magnet machine based starter-generator (S/G) system. There has been increased usage of electric drive systems in the transportation sector for increased efficiency and reduced emissions. One... Read More about Permanent magnet machine based starter-generator system with modulated model predictive control.

Trade-off study of heat sink and output filter volume in a GaN HEMT based single phase inverter (2017)
Journal Article
Gurpinar, E., & Castellazzi, A. (2018). Trade-off study of heat sink and output filter volume in a GaN HEMT based single phase inverter. IEEE Transactions on Power Electronics, 33(6), 5226-5239. https://doi.org/10.1109/TPEL.2017.2730038

This paper presents the trade-off study of heat sink and output filter volume of a GaN HEMT based single phase inverter. The selected topology is three-level Active Neutral point Clamped (ANPC) inverter, and the main aim is to explore the benefits of... Read More about Trade-off study of heat sink and output filter volume in a GaN HEMT based single phase inverter.

A finite control set model predictive control method for matrix converter with zero common-mode voltage (2017)
Journal Article
Wang, L., Dan, H., Zhao, Y., Zhu, Q., Peng, T., Sun, Y., & Wheeler, P. (2018). A finite control set model predictive control method for matrix converter with zero common-mode voltage. IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(1), 327-338. https://doi.org/10.1109/JESTPE.2017.2727501

In this paper a finite control set model predictive control method is presented that eliminates the common-mode voltage at the output of a matrix converter. In the predictive control process only the rotating vectors are selected to generate the outp... Read More about A finite control set model predictive control method for matrix converter with zero common-mode voltage.

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.

A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs (2017)
Journal Article
Tang, M., Gaeta, A., Formentini, A., & Zanchetta, P. (in press). A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs. IEEE Transactions on Industry Applications, https://doi.org/10.1109/TIA.2017.2725824

Based on the internal model principle, repetitive controller (RC) is capable to reduce periodic torque ripple by generating a compensating action that consequently need to be synchronized with the original ripple. However, the synchronization is diff... Read More about A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs.

Nanoscale ultrasound-switchable FRET based liposomes for near-infrared fluorescence imaging in optically turbid media (2017)
Journal Article
Zhang, Q., Morgan, S. P., & Mather, M. L. (2017). Nanoscale ultrasound-switchable FRET based liposomes for near-infrared fluorescence imaging in optically turbid media. Small, 13(33), Article 1602895. https://doi.org/10.1002/smll.201602895

A new approach to fluorescence imaging in optically turbid media centered on the use of nanoscale ultrasound-switchable FRET based liposome contrast agents is reported. Liposomes containing lipophilic carbocyanine dyes as FRET pairs with emission wav... Read More about Nanoscale ultrasound-switchable FRET based liposomes for near-infrared fluorescence imaging in optically turbid media.

A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits (2017)
Journal Article
Mohammed, A., Cox, T., Galea, M., & Gerada, C. (in press). A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits. IEEE Transactions on Industrial Electronics, https://doi.org/10.1109/TIE.2016.2587859

The mechanical and thermal properties of common, solid (non-laminated) ferromagnetic materials are widely available, but the electro-magnetic characteristics of such solid materials are often undefined. Existing characterization procedures such as th... Read More about A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits.

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.

A single-phase bidirectional AC/DC converter for V2G applications (2017)
Journal Article
Peng, T., Yang, P., Dan, H., Wang, H., Han, H., Yang, J., …Wheeler, P. (2017). A single-phase bidirectional AC/DC converter for V2G applications. Energies, 10(7), Article 881. https://doi.org/10.3390/en10070881

This paper presents a single-phase bidirectional current-source AC/DC converter for vehicle to grid (V2G) applications. The presented converter consists of a line frequency commutated unfolding bridge and an interleaved buck-boost stage. The low semi... Read More about A single-phase bidirectional AC/DC converter for V2G applications.

Fault detection for PMSM motor drive systems by monitoring inverter input currents (2017)
Journal Article
Li, J., Sumner, M., Zhang, H., & Arellano-Padilla, J. (2017). Fault detection for PMSM motor drive systems by monitoring inverter input currents. https://doi.org/10.23919/TEMS.2017.7961339

This paper has proposed a fault detecting method for DC supplied permanent magnet synchronize motor (PMSM) drive systems by monitoring the drive DC input current. This method is based on the fault signal propagation from the torque disturbance on the... Read More about Fault detection for PMSM motor drive systems by monitoring inverter input currents.

A detailed modular governor-turbine model for multiple-spool gas turbine with scrutiny of bleeding effect (2017)
Journal Article
Balaghi Enalou, H., Abbasi Soreshjani, E., Rashed, M., Shen Yeoh, S., & Bozhko, S. (in press). A detailed modular governor-turbine model for multiple-spool gas turbine with scrutiny of bleeding effect. Journal of Engineering for Gas Turbines and Power, 139(11), Article 114501. https://doi.org/10.1115/1.4036947

Multiple-spool gas turbines are usually utilized for power supply in aircrafts, ships, and terrestrial electric utility plants. As a result, having a reliable model of them can aid with the control design process and stability analysis. Since several... Read More about A detailed modular governor-turbine model for multiple-spool gas turbine with scrutiny of bleeding effect.

Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems (2017)
Journal Article
Zhang, Y., Gao, Y., Li, J., & Sumner, M. (in press). Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2017.2719402

In this paper, an interleaved switched-capacitor bidirectional DC-DC converter with a high step-up/step-down voltage gain is proposed. The interleaved structure is adopted in the low-voltage side of this converter to reduce the ripple of the current... Read More about Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems.

Modular assembly of a single phase inverter based on integrated functional block (2017)
Journal Article
Castellazzi, A., Solomon, A. K., Delmonte, N., & Cova, P. (in press). Modular assembly of a single phase inverter based on integrated functional block. IEEE Transactions on Industry Applications, https://doi.org/10.1109/TIA.2017.2718972

This paper presents an original modular plug-in type assembly approach for a single phase-inverter. The main focus here is, indicatively, on the power range 1-20 kW, but the methodology can be transferred to higher power levels, too. At the core of t... Read More about Modular assembly of a single phase inverter based on integrated functional block.

Flux weakening control of electric starter-generator based on permanent-magnet machine (2017)
Journal Article
Bozhko, S., Rashed, M., Hill, C. I., Yeoh, S. S., & Yang, T. (2017). Flux weakening control of electric starter-generator based on permanent-magnet machine. IEEE Transactions on Transportation Electrification, 3(4), 864-877. https://doi.org/10.1109/TTE.2017.2718221

The paper presents control analysis and design for a Permanent Magnet Machine (PMM) operated in Flux-Weakening (FW) mode for an aircraft electric starter-generator application. Previous literature has focused on FW control of PMMs in motoring (starti... Read More about Flux weakening control of electric starter-generator based on permanent-magnet machine.

Axial position estimation of conical shaped motors for aerospace traction applications (2017)
Journal Article
Roggia, S., Cupertino, F., Gerada, C., & Galea, M. (2017). Axial position estimation of conical shaped motors for aerospace traction applications. IEEE Transactions on Industry Applications, 53(6), 5405-5414. https://doi.org/10.1109/TIA.2017.2717911

This paper is concerned with the use of conical induction machines. Such machines are extremely valuable when apart from the rotational torque output, an axial translation of the rotor is also required. The inherent attraction between the stator and... Read More about Axial position estimation of conical shaped motors for aerospace traction applications.

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.

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.