All Outputs (155)

Smart Controller Design for Safety Operation of the MEA Electrical Distribution System (2018)
Conference Proceeding

As the electrical network of future aircraft become more and more complex, safety issues related with electrification need to be addressed. This paper shows that this can be achieved by developing an advanced control strategy and then applying it, th... Read More about Smart Controller Design for Safety Operation of the MEA Electrical Distribution System.

Potential Improvements in Turbofan's Performance by Electric Power Transfer (2018)
Conference Proceeding

© 2018 SAE International. All Rights Reserved. Bleeding in engines is essential to mitigate the unmatched air massflow between low and High Pressure (HP) compressors at low speed settings, thus avoiding unstable operation due to surge and phenomena.... Read More about Potential Improvements in Turbofan's Performance by Electric Power Transfer.

Neutral Point Voltage Control Method for Three-Level Diode-Clamped Converter Based on Fourth Harmonic Current Injection (2018)
Conference Proceeding

DC-link neutral point voltage balancing for three level neutral point clamped converters has been extensively investigated. Many effective methods have been reported with desirable performances under high power factor conditions. However, most of the... Read More about Neutral Point Voltage Control Method for Three-Level Diode-Clamped Converter Based on Fourth Harmonic Current Injection.

Concept of experimental research for electrical vehicle electromechanical systems with hybrid energy storages (2018)
Journal Article

In this paper, the concept of experimental investigations of electric vehicles electromechanical systems with hybrid energy storages is designed. Hybrid energy storage system is based on accumulators and super capacitors.... Read More about Concept of experimental research for electrical vehicle electromechanical systems with hybrid energy storages.

Development of aircraft electric starter-generator system based-on active rectification technology (2018)
Journal Article

More-electric aircraft (MEA) has become a dominant trend for modern aircraft. On-board MEA, many functions, which are conventionally driven by pneumatic and hydraulic power, are replaced with electrical subsystems. Starting aircraft engines with an e... Read More about Development of aircraft electric starter-generator system based-on active rectification technology.

Control system design and the power management of MEFADEC assembled on More-Electric Aircraft (2018)
Conference Proceeding

This paper deals with a novel control system design of More Electric Full Authorized Digital Electronic Control (MEFADEC) on the more electric aircraft. On the base of the analysis of the power management of MEFADEC system, the power of the more elec... Read More about Control system design and the power management of MEFADEC assembled on More-Electric Aircraft.

Sensorless control of dual-three phase PMSM based aircraft electric starter/generator system using model reference adaptive system method (2018)
Conference Proceeding

A preliminary study into turbofan performance with LP-HP power exchange (2018)
Conference Proceeding

Once an engine is designed, its Low Pressure (LP) and High Pressure (HP) shaft speeds are inevitably thermodynamically coupled which imposes certain operational constraints. These spools are not mechanically connected, however, in future more electri... Read More about A preliminary study into turbofan performance with LP-HP power exchange.

Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application (2018)
Conference Proceeding

A design procedure for the Dual Active Bridge (DAB) converter is presented, which aims to optimized power density and computational effort. When designing a DAB, the selection of circuit design parameters such as switching frequency, leakage inductan... Read More about Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application.

Flux control modulation for the dual active bridge DC/DC converter (2018)
Presentation / Conference

This paper introduces a novel modulation technique for the single phase Dual Active Bridge (DAB) in which the switching frequency and transformer flux are modulated to achieve improved power transfer characteristics and reduced converter losses. By a... Read More about Flux control modulation for the dual active bridge DC/DC converter.

An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications (2018)
Conference Proceeding

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.

Performance improvement of the CFM56-3 aircraft engine by electric power transfer (2018)
Conference Proceeding

With the design trends towards the More Electric Engine (MEE) for the More Electric Aircraft (MEA), areas for novel technologies can be pinpointed for multi-spool engines, introducing remarkable improvements to push the boundaries of propulsion techn... Read More about Performance improvement of the CFM56-3 aircraft engine by electric power transfer.

Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications (2018)
Journal Article

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.

Toward Robust Stability of Aircraft Electrical Power Systems: Using a μ-Based Structural Singular Value to Analyze and Ensure Network Stability (2017)
Journal Article

Transport accounts for nearly two-thirds of the global crude oil consumption and about a quarter of carbon dioxide (CO2) emissions (International Energy Agency 2009, Intergovernmental Panel on Climate Change 2014). The energy use and CO2 emissions in... Read More about Toward Robust Stability of Aircraft Electrical Power Systems: Using a μ-Based Structural Singular Value to Analyze and Ensure Network Stability.

A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve (2017)
Conference Proceeding

This paper proposes a semi-flooded cooling concept for a high speed machine design. The electrical machine considered is for an aircraft starter-generator system where power density and efficiency are crucial. In order to achieve the high power densi... Read More about A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve.

Adaptive Stabilization of Uncontrolled Rectifier Based AC–DC Power Systems Feeding Constant Power Loads (2017)
Journal Article

© 2017 IEEE. It is known that, when tightly regulated, actively controlled power converters behave as constant power loads (CPLs). These loads can significantly degrade the stability of their feeder system. The loop-cancelation technique has been est... Read More about Adaptive Stabilization of Uncontrolled Rectifier Based AC–DC Power Systems Feeding Constant Power Loads.

Maximum torque-per-amp tracking control of saturated induction motors (2017)
Conference Proceeding

An improved maximum torque per Ampere (MTPA) controller for induction motor (IM) drives is presented. The proposed MTPA field oriented controller guarantees asymptotic torque tracking of smooth reference trajectories and maximises the torque per Ampe... Read More about Maximum torque-per-amp tracking control of saturated induction motors.

Assessment of torque ripple minimization techniques for aircraft switched reluctance machine starter/generator (2017)
Conference Proceeding

This paper presents an assessment of different torque ripple minimization techniques for more electric aircraft Switched Reluctance Machine (SRM) starter/generator (S/G). SRM is one of the most popular potential candidates for future aircraft S/G. SR... Read More about Assessment of torque ripple minimization techniques for aircraft switched reluctance machine starter/generator.

A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems (2017)
Conference Proceeding

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.

Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties (2017)
Journal Article

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.