All Outputs (399)

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.

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.

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.

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.

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.

Polymeric optical fibre sensor coated by SiO2 nanoparticles for humidity sensing in the skin microenvironment (2017)
Journal Article
Gomez, D., Morgan, S. P., Hayes-Gill, B. R., Correia, R., & Korposh, S. (2018). Polymeric optical fibre sensor coated by SiO2 nanoparticles for humidity sensing in the skin microenvironment. Sensors and Actuators B: Chemical, 254, 887-895. https://doi.org/10.1016/j.snb.2017.07.191

The sensitivity of a low-cost polymeric optical fibre humidity sensor based on transmittance changes due to evanescent wave absorption is reported using test measurements in an environmental chamber and of the skin. The layer-by-layer method was used... Read More about Polymeric optical fibre sensor coated by SiO2 nanoparticles for humidity sensing in the skin microenvironment.

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.

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.

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 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.

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.