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Super-resolution imaging using nano-bells (2018)
Journal Article
Fuentes-Dominguez, R., Pérez-Cota, F., Naznin, S., Smith, R. J., & Clark, M. (2018). Super-resolution imaging using nano-bells. Scientific Reports, 8, 1-9

In this paper we demonstrate a new scheme for optical super-resolution, inspired, in-part, by PALM and STORM. In this scheme each object in the field of view is tagged with a signal that allows them to be detected separately. By doing this we can ide... Read More about Super-resolution imaging using nano-bells.

Modulation limit based control strategy for more electric aircraft generator system (2018)
Conference Proceeding
Shen Yeoh, S., Rashed, M., & Bozhko, S. (in press). Modulation limit based control strategy for more electric aircraft generator system. In N/A

Vector based control strategies have been extensively employed for drive systems, and in recent times to the More Electric Aircraft (MEA) generator based systems. The control schemes should maintain the bus voltage and adhere to the generator system... Read More about Modulation limit based control strategy for more electric aircraft generator system.

A wideband fault location scheme for active distribution systems (2018)
Conference Proceeding
Aboshady, F., Sumner, M., & Thomas, D. (2018). A wideband fault location scheme for active distribution systems. In 2018 International Conference on Renewable Energy Research and Applications (ICRERA)doi:10.1109/ICRERA.2018.8566780

This paper proposes a fault location technique for future distribution systems with distributed generation. The technique considers the circuit analysis at the non-fundamental frequencies that are generated when a fault occurs. To consider both induc... Read More about A wideband fault location scheme for active distribution systems.

An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge (2018)
Journal Article
Huang, Z., Yang, T., Wheeler, P., Galea, M., Giangrande, P., & Chowdhury, S. (2019). An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge. IEEE Transactions on Industrial Electronics, 66(7), 5623-5633. doi:10.1109/TIE.2018.2873539

This paper proposes a capacitor voltage regulation method for the dual converter with a floating bridge for aerospace applications. This topology has previously been reported, but with a constrained voltage utilisation factor due to the need for capa... Read More about An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge.

A novel immense configurations of boost converter for renewable energy application (2018)
Conference Proceeding
Maroti, P. K., Padmanaban, S., Blaabjerg, F., Ionel, D., & Wheeler, P. (2018). A novel immense configurations of boost converter for renewable energy application

A three immense configurations of boost converter for renewable energy application is presented in the paper. The Voltage Lift Switched Inductor (VLSI) structure is pledge to extra high voltage conversion. The proposed work represent the modified hig... Read More about A novel immense configurations of boost converter for renewable energy application.

Design considerations of fault-tolerant electromechanical actuator systems for more electric aircraft (MEA) (2018)
Conference Proceeding
Zhu, S., Cox, T., Xu, Z., Gerada, C., & Li, C. (2018). Design considerations of fault-tolerant electromechanical actuator systems for more electric aircraft (MEA). doi:10.1109/ecce.2018.8557426

This paper studies the concerns such as architecture and reliability in the deployment of electromechanical actuator (EMA) in the actuation system for more electric aircraft (MEA). First, the reliability of the actuation system architecture such as c... Read More about Design considerations of fault-tolerant electromechanical actuator systems for more electric aircraft (MEA).

Synchronous reluctance motor iron losses analytical model and optimization (2018)
Conference Proceeding
Mahmoud, H., Degano, M., Bacco, G., Bianchi, N., & Gerada, C. (2018). Synchronous reluctance motor iron losses analytical model and optimization. doi:10.1109/ECCE.2018.8558292

The complex rotor structure of synchronous reluctance machines causes a high harmonic content in the air-gap flux density and then flux density fluctuations in different iron parts. The importance of determining accurately the total iron losses in th... Read More about Synchronous reluctance motor iron losses analytical model and optimization.

Vector control of a modular multilevel matrix converter operating over the full output-frequency range (2018)
Journal Article
Diaz, M., Cardenas, R., Espinoza, M., Hackl, C. M., Rojas, F., Clare, J. C., & Wheeler, P. (2018). Vector control of a modular multilevel matrix converter operating over the full output-frequency range. IEEE Transactions on Industrial Electronics, 66(7), 5102-5114. doi:10.1109/tie.2018.2870367

The Modular Multilevel Matrix Converter ( M 3 C ) is an ac-to-ac converter topology suitable for the control of high-power variable-speed drives. The control of this converter is complex, particularly when the two ac system frequencies are similar o... Read More about Vector control of a modular multilevel matrix converter operating over the full output-frequency range.

New inverting modified CUK converter configurations with switched inductor (MCCSI) for high-voltage/low-current renewable applications (2018)
Conference Proceeding
Maroti, P. K., Padmanaban, S., Bhaskar, M. S., Blaabjerg, F., & Wheeler, P. (2018). New inverting modified CUK converter configurations with switched inductor (MCCSI) for high-voltage/low-current renewable applications

Inverting Modified CUK Converter with Switched Inductor (MCCSI) configurations are articulated in the paper for high-voltage and low-current renewable energy applications. Based on the Switched Inductor (SI) position in MCC converter, four new modifi... Read More about New inverting modified CUK converter configurations with switched inductor (MCCSI) for high-voltage/low-current renewable applications.

A comparison of modulation techniques for three-phase quasi Z-source modular multilevel converter able to provide DC-link fault blocking capability (2018)
Presentation / Conference
Khera, F. A., Klumpner, C., & Wheeler, P. W. (2018, September). A comparison of modulation techniques for three-phase quasi Z-source modular multilevel converter able to provide DC-link fault blocking capability. Paper presented at EPE'18 ECCE Europe - 20th European Conference on Power Electronics and Applications, Riga, Latvia

Future transmission and distribution grids will use power converters to enable interface with HVDC systems and the Modular Multilevel Converter (MMC) is a topology that is already employed in commercial systems. The MMC converter inherent the benefit... Read More about A comparison of modulation techniques for three-phase quasi Z-source modular multilevel converter able to provide DC-link fault blocking capability.

Thermal analysis of fault-tolerant electrical machines for aerospace actuators (2018)
Journal Article
Madonna, V., Giangrande, P., Galea, M., & Gerada, C. (2019). Thermal analysis of fault-tolerant electrical machines for aerospace actuators. IET Electric Power Applications, 13(7), 843 – 852. doi:10.1049/iet-epa.2018.5153

For safety critical applications, electrical machines need to satisfy several constraints, in order to be considered fault-tolerant. In fact, if specific design choices and appropriate control strategies are embraced, fault-tolerant machines can oper... Read More about Thermal analysis of fault-tolerant electrical machines for aerospace actuators.

Improved thermal management and analysis for stator end-windings of electrical machines (2018)
Journal Article
Madonna, V., Walker, A., Giangrande, P., Serra, G., Gerada, C., & Galea, M. (2019). Improved thermal management and analysis for stator end-windings of electrical machines. IEEE Transactions on Industrial Electronics, 66(7), 5057-5069. doi:10.1109/tie.2018.2868288

In electrical machine design, thermal management plays a key role in improving performance and reducing size. End-windings are commonly identified as the machine hot-spot. Hence, lowering and predicting end-windings temperature are crucial tasks in t... Read More about Improved thermal management and analysis for stator end-windings of electrical machines.

Design of a cooperative voltage harmonic compensation strategy for islanded microgrids combining virtual admittance and Repetitive Controller (2018)
Journal Article
Blanco, C., Tardelli, F., Diaz, D., Zanchetta, P., & Briz, F. (2018). Design of a cooperative voltage harmonic compensation strategy for islanded microgrids combining virtual admittance and Repetitive Controller. IEEE Transactions on Industry Applications, doi:10.1109/tia.2018.2868691. ISSN 0093-9994

Non-linear loads (NLLs) in three-phase systems are known to produce current harmonics at -5, 7, -11, 13… times the fundamental frequency; harmonics of the same frequencies are induced in microgrid voltage, reducing therefore the power quality. De... Read More about Design of a cooperative voltage harmonic compensation strategy for islanded microgrids combining virtual admittance and Repetitive Controller.

Investigation of AC copper and iron losses in high-speed high-power density PMSM (2018)
Conference Proceeding
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2018). Investigation of AC copper and iron losses in high-speed high-power density PMSM. doi:10.1109/ICELMACH.2018.8507166

This paper presents a detailed investigation of AC copper losses in high-speed high-power density permanent magnet synchronous machine. For parallel strands winding, it is not easy to accurately estimate the AC copper losses using finite element mode... Read More about Investigation of AC copper and iron losses in high-speed high-power density PMSM.

A novel Newton-Raphson-based searching method for the MTPA control of PMaSynRM considering magnetic and cross saturation (2018)
Conference Proceeding
Wang, S., Degano, M., Kang, J., Galassini, A., & Gerada, C. (2018). A novel Newton-Raphson-based searching method for the MTPA control of PMaSynRM considering magnetic and cross saturation. In Proceedings 2018 XIII International Conference on Electrical Machines (ICEM)doi:10.1109/icelmach.2018.8506853

Maximum torque per ampere control (MTPA) takes full advantage of the reluctance torque aiming at the minimum copper loss, which can increase the torque output under the minimum current conditions. The traditional MTPA method makes use of equations wi... Read More about A novel Newton-Raphson-based searching method for the MTPA control of PMaSynRM considering magnetic and cross saturation.

Combined thermofluid and electromagnetic optimisation of stator vent cooling (2018)
Conference Proceeding
Bersch, K., Nuzzo, S., Connor, P., Eastwick, C., Galea, M., Rolston, R., & Vakil, G. (2018). Combined thermofluid and electromagnetic optimisation of stator vent cooling. In Proceedings: 2018 XIII International Conference on Electrical Machines (ICEM)doi:10.1109/icelmach.2018.8507231

A combined electromagnetic and thermal modelling approach has been developed to optimise the design of multiple radial stator vents in an air-cooled, synchronous generator with a power rating of several hundred kVA. An experimentally validated 3-D Co... Read More about Combined thermofluid and electromagnetic optimisation of stator vent cooling.

Electrical machine rotor shielding for low cost electrical drive (2018)
Conference Proceeding
Al-Ani, M., Vakil, G., & Gerada, C. (2018). Electrical machine rotor shielding for low cost electrical drive. In 2018 IEEE Transportation Electrification Conference and Expo (ITEC)doi:10.1109/ITEC.2018.8450226

Electrical machine rotor shielding has been proposed for high-speed electrical machines, i.e. ≥50krpm, where a smooth current waveform becomes difficult and costly to generate due to the required high switching frequency. The rotor shielding is used... Read More about Electrical machine rotor shielding for low cost electrical drive.

Packaging technology for a highly integrated 10kV SiC MOSFET module (2018)
Presentation / Conference
Mouawad, B., Di Marino, C., Li, J., Skuriat, R., & Johnson, M. (2018, August). Packaging technology for a highly integrated 10kV SiC MOSFET module. Paper presented at 14th International Seminar on Power Semiconductors (ISPS 2018)

High-voltage SiC devices offer an attractive combination of fast switching and low losses, giving application users unprecedented levels of flexibility in choice of topology and control strategy for medium- and high-voltage power conversion. However,... Read More about Packaging technology for a highly integrated 10kV SiC MOSFET module.

Analysis of nonstationary emissions for efficient characterization of stochastic EM fields (2018)
Conference Proceeding
Baharuddin, M. H., Smartt, C., Maricar, M. I., Thomas, D. W., Gradoni, G., Creagh, S. C., & Tanner, G. (2018). Analysis of nonstationary emissions for efficient characterization of stochastic EM fields. doi:10.1109/EMCEurope.2018.8485104

A statistical approach using field-field correlation functions which is obtained from two-probe time domain measurement is used to characterize the radiation from complex devices. The time-frequency analysis provided by the measurement data has shown... Read More about Analysis of nonstationary emissions for efficient characterization of stochastic EM fields.

Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications (2018)
Presentation / Conference
Raj, K., Mahajan, S. B., Sanjeevikumar, P., Frede, B., Pat, W., & Muhammad H., R. (2018, August). Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications. Paper presented at IEEE-PEMC 2018 - 18th International Conference on Power Electronics and Motion Control, Budapest, Hungary

In the present scenario of increasing power demand and depletion of fossil fuel results in the research advancements in the field of renewable energy sources. Among various types of renewable energy sources, photovoltaic related applications are... Read More about Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications.