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A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources (2017)
Journal Article
Zhang, Y., Liu, Q., Li, J., & Sumner, M. (2018). A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources. IEEE Transactions on Industrial Electronics, 65(6), 5188-5200. https://doi.org/10.1109/TIE.2017.2756603

A common ground switched-quasi-Z-source bidirectional DC-DC converter is proposed for electric vehicles (EVs) with hybrid energy sources. The proposed converter is based on the traditional two-level quasi-Z-source bidirectional DC-DC converter, chang... Read More about A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources.

Analysis, modelling and design considerations for the excitation systems of synchronous generators (2017)
Journal Article
Nuzzo, S., Galea, M., Gerada, C., & Brown, N. (2018). Analysis, modelling and design considerations for the excitation systems of synchronous generators. IEEE Transactions on Industrial Electronics, 65(4), 2996-3007. https://doi.org/10.1109/TIE.2017.2756592

The traditional generating set is usually comprised of a classical, wound-field, salient-pole or cylindrical rotor synchronous generator, excited by a separate smaller machine, via a rotating, uncontrolled diode rectifier. The effects of the commutat... Read More about Analysis, modelling and design considerations for the excitation systems of synchronous generators.

An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control (2017)
Journal Article
Fan, B., Wang, K., Wheeler, P., Gu, C., & Li, Y. (in press). An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control. IEEE Transactions on Power Electronics, 33(8), https://doi.org/10.1109/TPEL.2017.2755767

The modular multilevel matrix converter (M3C) is a promising topology for high-voltage high-power applications. Recent researches have proved its significant advantages for adjustable-speed motor drives compared with the back-to-back modular multilev... Read More about An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control.

Characterisation and modelling of gallium nitride power semiconductor devices dynamic on-state resistance (2017)
Journal Article
Li, K., Evans, P., & Johnson, M. (2018). Characterisation and modelling of gallium nitride power semiconductor devices dynamic on-state resistance. IEEE Transactions on Power Electronics, 33(6), 5262 - 5273. https://doi.org/10.1109/TPEL.2017.2730260

GaN-HEMTs suffer from trapping effects which increases device ON-state resistance (RDS(on)) above its theoretical value. This increase is a function of the applied DC bias when the device is in its OFF state, and the time which the device is biased f... Read More about Characterisation and modelling of gallium nitride power semiconductor devices dynamic on-state resistance.

Cell imaging by phonon microscopy: sub-optical wavelength ultrasound for non-invasive imaging (2017)
Journal Article
Perez-Cota, F., Smith, R. J., Moradi, E., Leija, A. L., Velickovic, K., Marques, L., Webb, K. F., Symonds, M. E., Sottile, V., Elsheikha, H., & Clark, M. (2017). Cell imaging by phonon microscopy: sub-optical wavelength ultrasound for non-invasive imaging

The mechanical properties of cells play an important role in cell function and behavior. This paper presents recent developments that have enabled the use of laser-generated phonons (ultrasound) with sub-optical wavelengths to look inside living cell... Read More about Cell imaging by phonon microscopy: sub-optical wavelength ultrasound for non-invasive imaging.

Thermal imaging is a non-invasive alternative to PET-CT for measurement of brown adipose tissue activity in humans (2017)
Journal Article
Law, J., Morris, D. E., Izzi Engbeaya, C., Salem, V., Coello, C., Robinson, L. J., Jayasinghe, M., Scott, R., Gunn, R., Rabiner, E., Tan, T., Dhillo, W. S., Bloom, S., Budge, H., & Symonds, M. E. (2018). Thermal imaging is a non-invasive alternative to PET-CT for measurement of brown adipose tissue activity in humans. Journal of Nuclear Medicine, 59(3), https://doi.org/10.2967/jnumed.117.190546

Background
Obesity and its metabolic consequences are a major cause of morbidity and mortality. Brown adipose tissue (BAT) utilises glucose and free fatty acids to produce heat, thereby increasing energy expenditure. Effective evaluation of human BA... Read More about Thermal imaging is a non-invasive alternative to PET-CT for measurement of brown adipose tissue activity in humans.

Design and development of a high-density, high-speed 10 kV SiC MOSFET module (2017)
Presentation / Conference Contribution
Di Marino, C., Boroyevich, D., Burgos, R., Johnson, C. M., & Lu, G.-Q. Design and development of a high-density, high-speed 10 kV SiC MOSFET module. Presented at 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)

High-density packaging of fast-switching power semiconductors typically requires low parasitic inductance, high heat extraction, and high thermo-mechanical reliability. High-density packaging of high-voltage power semiconductors, such as 10 kV SiC MO... Read More about Design and development of a high-density, high-speed 10 kV SiC MOSFET module.

Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads (2017)
Presentation / Conference Contribution
Navarro-Rodríguez, Á., Garcia, P., Cano, J., & Sumner, M. Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads. Presented at 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe),

This paper extensively analyzes the operation limits, system stability and disturbance rejection capability
of the voltage control loops used in master-slave AC and DC Microgrids (MGs). Two different control schemes are studied analytically, simulat... Read More about Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads.

EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation (2017)
Presentation / Conference Contribution
Smartt, C., Basford, M., Greedy, S., Thomas, D., & Sumner, M. (2017, September). EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation. Presented at 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA), Verona, Italy

This paper describes the development and application of sophisticated multi-conductor cable bundle models for Spice simulation. The cable models developed include frequency dependent parameters, transfer impedance coupling and incident plane wave exc... Read More about EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation.