All Outputs (119)

An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications (2018)
Presentation / Conference Contribution
Li, C., Yang, T., Lo Calzo, G., Bozhko, S., Gerada, C., & Wheeler, P. An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications. Presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)

Electrical starter/generator (ESG) system is one of the key innovations of more-electric aircraft initiative. The ESG cranks the engine and accelerates it up to self-sustained speed using electric energy (starter mode) and then runs as a generator to... Read More about An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications.

Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications (2018)
Journal Article
Yang, T., Bozhko, S., Wheeler, P., Wang, S., & Wu, S. (2018). Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications. Chinese Journal of Aeronautics, 31(5), 883-891. https://doi.org/10.1016/j.cja.2018.03.010

The Auto-Transformer Rectifier Unit (ATRU) is one preferred solution for high-power AC/DC power conversion in aircraft. This is mainly due to its simple structure, high reliability and reduced kVA ratings. Indeed, the ATRU has become a preferred AC/D... Read More about Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications.

Sources of uncertainty in hydrological climate impact assessment: a cross-scale study (2018)
Journal Article
Hattermann, F., Vetter, T., Breuer, L., Su, B., Daggupati, P., Donnelly, C., Fekete, B., Flörke, M., Gosling, S. N., Hoffmann, P., Liersch, S., Masaki, Y., Motovilov, Y., Müller, C., Samaniego, L., Stacke, T., Wada, Y., Yang, T., & Krysanova, V. (2018). Sources of uncertainty in hydrological climate impact assessment: a cross-scale study. Environmental Research Letters, 13(1), Article 5006. https://doi.org/10.1088/1748-9326/aa9938

Climate change impacts on water availability and hydrological extremes are major concerns as regards the Sustainable Development Goals. Impacts on hydrology are normally investigated as part of a modelling chain, in which climate projections from mul... Read More about Sources of uncertainty in hydrological climate impact assessment: a cross-scale study.

Comparison of Three Speed Loop Designs for a High Speed Nine-phase Permanent Magnet Synchronous Machine in More Electric Aircraft (2017)
Presentation / Conference Contribution
Tang, M., Chen, Y., Yang, T., & Ilkhani, M. (2022, October). Comparison of Three Speed Loop Designs for a High Speed Nine-phase Permanent Magnet Synchronous Machine in More Electric Aircraft. Presented at IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society, Brussels, Belgium

A high speed nine phase permanent magnet synchronous machine (PMSM) has been designed for more electric aircraft (MEA) for the sake of high power density and fault-tolerant capability. This paper addresses the speed loop design of the high speed PMSM... Read More about Comparison of Three Speed Loop Designs for a High Speed Nine-phase Permanent Magnet Synchronous Machine in More Electric Aircraft.

A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems (2017)
Presentation / Conference Contribution
Li, C., Lo Calzo, G., Bozhko, S., Gerada, C., Wheeler, P., & Yang, T. (2017, November). A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems. Presented at 4th International Symposium on More Electric Aircraft (MEA 2017), Beijing, China

The neutral point voltage balancing issue for three level Neutral point clamped (NPC) converter has been extensively investigated recently. Different solutions to balance the neutral point have been proposed. However the proposed solutions so far eit... Read More about A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems.

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.

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.

Enhancing electromagnetic launch capability: design of a small launch system for large UAVs (2017)
Presentation / Conference Contribution
Cox, T., Yang, T., & Gerada, C. Enhancing electromagnetic launch capability: design of a small launch system for large UAVs. Presented at Engine as a Weapon International Symposium, EAAW 2017

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.

The atomization current and droplet size of ethanol in two different small-scale electro-spraying systems (2017)
Journal Article
Gan, Y., Zhang, X., Li, H., Tong, Y., Shi, Y., & Yan, Y. (2017). The atomization current and droplet size of ethanol in two different small-scale electro-spraying systems. Journal of Electrostatics, 87, https://doi.org/10.1016/j.elstat.2017.05.003

An experimental study on electro-spraying from small-scale combustors is carried out using liquid ethanol as fuel. Two systems of electro-spraying are employed in the present study; one is a nozzle system (without a ring electrode) and the other is a... Read More about The atomization current and droplet size of ethanol in two different small-scale electro-spraying systems.

History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels (2016)
Presentation / Conference Contribution
Yang, T., Cox, T., Degano, M., Bozhko, S., & Gerada, C. History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels. Presented at International Naval & Maritime Exhibition and Congress for Latin America, ExpoNAVAL 2016

Due to developments in power electronics, electric machines, energy storage and control, electric propulsion and integrated electrical power systems have become major trends for commercial and naval vessels. This is mainly due to the fact that the us... Read More about History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels.

Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator (2016)
Presentation / Conference Contribution
Bozhko, S., Rashed, M., Yeoh, S. S., Yang, T., & Hill, C. I. Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator. Presented at Power Electronics, Machines and Drives 2016 (PEMD 2016)

This paper presents control analysis and design for an aircraft electric starter-generator system based on a Permanent Magnet Machine (PMM) operated in Flux-Weakening mode (FW). The focus is on detailed stability analysis which helped to discover an... Read More about Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator.

Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications (2016)
Presentation / Conference Contribution
Ahumada, C., Garvey, S. D., Yang, T., Kulsangcharoen, P., Wheeler, P., & Morvan, H. Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications. Presented at 42nd Annual Conference of IEEE Industrial Electronics Society (IECON 2016)

This paper studies strategies to minimize the electromechanical interaction (EMI) within aircraft power systems. With the growth of electrical power on-board aircraft, the interaction between the electrical systems and the engine core will become sig... Read More about Minimization of electro-mechanical interaction with posicast strategies for more-electric aircraft applications.

Stability assessment of a high speed permanent magnet machine based aircraft electrical power system (2016)
Presentation / Conference Contribution
Gao, F., Yeoh, S. S., Hill, C. I., Yang, T., & Bozhko, S. Stability assessment of a high speed permanent magnet machine based aircraft electrical power system. Presented at 18th European Conference on Power Electronics and Applications

Starting an aircraft engine with an electrical machine has been one of the major trends for future aircraft. This paper studies the stability of a permanent-magnet machine (PMM) based aircraft starter/generator (S/G) system. Using control-to-output t... Read More about Stability assessment of a high speed permanent magnet machine based aircraft electrical power system.

Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications. IEEE Transactions on Power Electronics, 30(9), https://doi.org/10.1109/TPEL.2014.2364682

This paper aims to develop a functional model of symmetrical multi-pulse Auto-Transformer Rectifier Units (ATRUs) for More-Electric Aircraft (MEA) applications. The ATRU is seen as the most reliable way readily to be applied in the MEA. Interestingly... Read More about Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications.

Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications. IET Electrical Systems in Transportation, 5(2), https://doi.org/10.1049/iet-est.2014.0030

The More-Electric Aircraft (MEA) has become a dominant trend for next-generation aircraft. The Electrical Power System (EPS) on-board may take many forms: AC, DC, hybrid, frequency-wild, variable voltage, together with the possibility of novel connec... Read More about Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications.

Fast functional modelling of diode-bridge rectifier using dynamic phasors (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Fast functional modelling of diode-bridge rectifier using dynamic phasors. IET Power Electronics, 8(6), https://doi.org/10.1049/iet-pel.2014.0414

In this paper, a functional model for diode-bridge rectifiers is developed based on the dynamic phasor concept. The developed model is suitable for accelerated simulation studies of the electric power systems under normal, unbalanced and line faulty... Read More about Fast functional modelling of diode-bridge rectifier using dynamic phasors.

Dynamic phasor modelling of multi-generator variable frequency electrical power systems (2015)
Journal Article
Yang, T., Bozhko, S., Le-Peuvedic, J.-M., Asher, G., & Hill, C. I. (2016). Dynamic phasor modelling of multi-generator variable frequency electrical power systems. IEEE Transactions on Power Systems, 31(1), 563-571. https://doi.org/10.1109/TPWRS.2015.2399371

The Dynamic Phasor (DP) concept has been widely used in modelling electrical power systems. So far, the DP concept has been restricted to modelling systems with one single electrical source at a fixed fundamental frequency; either one generator or an... Read More about Dynamic phasor modelling of multi-generator variable frequency electrical power systems.

Bogoliubov excitation spectrum of an elongated condensate throughout a transition from quasi-one-dimensional to three-dimensional (2014)
Journal Article
Yang, T., Henning, A. J., & Benedict, K. A. (2014). Bogoliubov excitation spectrum of an elongated condensate throughout a transition from quasi-one-dimensional to three-dimensional. Journal of Physics B: Atomic, Molecular and Optical Physics, 47(3), Article 035302. https://doi.org/10.1088/0953-4075/47/3/035302

More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control
Presentation / Conference Contribution
Yoeh, S. S., Yang, T., Tarisciotti, L., Hill, C. I., & Bozhko, S. More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control. Presented at International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles and the International Transportation Electrification Conference (ESARS ITEC 2016)

The current trend for future aircraft is the adoption of the More Electric Aircraft (MEA) concept. The electrical based starter-generator (S/G) system is one of the core ideas from the MEA concept. The PI based control scheme has been investigated in... Read More about More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control.