Conference Program




Day 1: Wednesday, November 13

Room B Testing, Validation and Certification
14:00 - 16:35

Moderator

Fernando Menendez Rodriguez
Electrical system expert
European Aviation Safety Agency
GERMANY

14:00

Challenges of more-electric technologies testing and validation in aerospace

Dr Ravi Venugopal
Managing director
Opal-RT
GERMANY
New generations of aircraft include electric components and systems that replace traditional hydraulic and pneumatic ones. These new systems need to undergo extensive validation and testing before their full integration into the aircraft build program. Virtual testing and real-time simulation approaches allow these new technologies to be validated at the early design stages with minimum incurred cost and time. The presentation will showcase a few application projects of virtual testing of more-electric systems that are currently being developed at Opal-RT, with a particular focus on topics such as EMC/EMI and power quality analysis.

14:25

Flexible platform for validation testing on electrical aircraft

Javier Gutierrez
Business development manager
National Instruments
SPAIN
Electric subsystems offer clear advantages over their predecessors, driven by technology advancements in power electronics. However, simulating and testing these electric and electromechanical systems presents considerable challenges. To take full advantage of the benefits of electrical systems, a test platform and methodology that can address these challenges is needed. The platform must be capable of integrating the latest models and algorithm ecosystems of vendors servicing this market, performing highly deterministic, real-time simulation routines across hundreds or even thousands of cases, and integrating IO, buses and even RF comms.

14:50

Dynamic analysis of an embedded high-speed electric fan

Dr Pascal Bouvet
Strategy and international director
Vibratec
FRANCE
In the area of aircraft electrification and new hybrid electric propulsion, the aeronautical industry faces the integration of new driving chains from the electric motor to the high-speed rotor. Consequently, new structural dynamics are expected, increasing the risk of mechanical faults, and new sources of noise and vibration. VibraTec, a center of excellence in mechanical, vibration and acoustic sciences, has developed a complete engineering process to address such phenomena. The presentation introduces motivations related to the aeronautical industry and the background theory of electromechanical sources. These are applied to a high-speed electric compressor. Finally, results are compared with experimental data.

15:15 - 15:45

Break

15:45

Hybrid electric propulsion system demonstrator with superconductive electric motor

Dr Anton Varyukhin
Head of hybrid and electric propulsion systems department
Central Institute of Aviation Motors
RUSSIA
The presentation describes the development and testing of the serial hybrid electric propulsion system demonstrator. The demonstrator consists of a 500kW high-temperature superconductive electric motor, its cryogenic and control system, traditional (not superconductive) 400kW electric generator, Klimov TV2-117 turboshaft gas-turbine engine (to rotate it), power management system, and battery. The superconductive electric motor was designed and manufactured by SuperOx, and the electric generator was developed in partnership with Ufa State Aviation Technical University. The battery provides a maximum power of 150kW for five minutes. Different types of testbeds and climatic chambers for gas-turbine engines were adopted to test the demonstrator and its components.

16:10

The last hurdle for electric aviation: certification

Lowell Foster
Director, global innovation and engineering
General Aviation Manufacturers Association (GAMA)
USA
Production and operation of electric aircraft face numerous hurdles, certification being significant. Certification must be addressed for a substantial list of issues such as pilot training and experience, aircraft engineering, operating rules and limitations, and charging and ground safety. This presentation will look at progress being made in these areas as we begin a new era in aviation.

Day 2: Thursday, November 14

Room B Approaches to Energy Storage
08:50 - 12:40

Moderator

Peter Malkin
Strategic research advisor
Newcastle University
UK

08:50

Understanding the safety implications of battery-powered flight

Phil Whiffin
Head of advanced propulsion systems
WMG, University of Warwick
UK
An understanding of battery technology is required to understand how to optimize the application of batteries in electric aircraft. This presentation will consider the implications of battery technology and discuss possible mitigations at all levels, starting from cell chemistry up through component level, system level and aircraft level, to operational level. It will also discuss the interactions between these levels and how one level cannot be considered in isolation.

09:15

Thermal battery management – the key to efficiency and longevity

Maximilian Bruch
Scientist
Fraunhofer Institute for Solar Energy Systems ISE
GERMANY
The speech covers the topic of thermal management of the traction battery. Battery cells react very sensitively to temperature changes and have only a very small operating window in which they can be operated safely and reliably. The lecture concentrates on the characteristics of the battery cell during operation. In particular, the connection between efficiency and battery temperature as well as service life and temperature control will be explained. Furthermore, a process for identifying the ideal temperature and optimizing thermal management will be presented.

09:40

Battery development for e-ROP (electric and rotary-engined hybrid plane)

Prof Rainer Klein
Head of the mechatronic/electromobility department
DHBW Mosbach
GERMANY
The presentation focuses on the development of a high-performance battery for a hybrid aircraft with electric and rotary propulsion (e-ROP). The focus is on the evaluation of suitable battery cells, battery lifetime and safety aspects.

10:05

Hybrid auxiliary power unit based on solid oxide fuel cell

Mikhail Gordin
General director
Central Institute of Aviation Motors
RUSSIA
The presentation provides a view on the main design features of the auxiliary power unit (APU) for more-electric aircraft based on solid oxide fuel cells (SOFC) combined with a traditional gas-turbine unit. The study shows the way to create the correct energy and mass balance for such a hybrid APU and assess its fuel and weight efficiency. The proposed 300KVA APU design assumes catalytic conversion of jet fuel into syngas, then direct conversion of syngas into electricity at the SOFC battery, and finally burning the excess gas in a gas-turbine unit to generate electricity and maintain heat and pressure balance.

10:30 - 11:00

Break

11:00

Ultracapacitors for aerospace and defense applications

John Hyde
Senior chemical engineer
Nanoramic Laboratories
USA
Ultracapacitors are specially designed to deliver high capacitance and power density. However, commercially available supercapacitors are not designed to withstand the hostile conditions to which electronic systems for aerospace and defense systems are subjected. Nanoramic’s FastCAP ultracapacitors and structural ultracapacitors are engineered to withstand extreme shocks, vibrations and hostile temperatures as low as -55°C. Ultracapacitors are frequently used together with traditional energy storage solutions to achieve the ideal balance of power density and energy density for the specific application. They are suitable for supporting high peak power, leveling high peak loads, and providing high-power backup in energy storage solutions.

11:25

Hydrogen research for aviation

Roel van Benthem
R&D manager energy systems/thermal control
Royal Netherlands Aerospace Centre
NETHERLANDS
Due to its high specific energy and zero emissions, hydrogen could be an ideal solution for sustainable aviation. However, a major disadvantage is that hydrogen requires bulky and heavyweight storage in the form of high-pressure or cryogenics tanks, which largely counterbalances this. Despite these difficulties, hydrogen offers significant advantages for electric aircraft compared with batteries, as demonstrated by NLR's drone project HYDRA.

11:50

Electric aircraft connection – both on the ground and in the air

Jim Andriotis
Head of innovation
Cavotec
USA
With the move to electric aircraft coming around the corner, there is a need to be able to connect these to high-power connections reliably and safely to ensure fast turnaround times are achievable. We will explore how other industries have met this challenge and what technologies can be transferred to the aerospace industry both on the ground and on the aircraft.

12:15

Deep dive into aircraft electrification

Roberto Licata
A&D industry solution experience manager
Dassault Systèmes
FRANCE
In this presentation Roberto Licata of Dassault Systèmes will use the example of an eVTOL developed internally in Dassault Systèmes to provide a case study on the electrification of the aircraft, from end to end, and show battery materials design, battery cell engineering, battery module & pack engineering, battery system integration, and battery monitoring systems. The presentation will illustrate the challenges that the industry faces and how the 3DEXPERIENCE Platform can bring value in this effort.

12:40 - 14:00

Lunch

Room B Improving Power Density & Efficiency
14:00 - 17:00

Moderator

Maximilian Bruch
Scientist
Fraunhofer Institute for Solar Energy Systems ISE
GERMANY

14:00

Novel electric power systems designs for aircraft – a route to zero-CO2 long-haul air travel

Peter Malkin
Strategic research advisor
Newcastle University
UK
Electrical power systems available today are far too low in power density and efficiency to be effective for large aircraft propulsion systems. This is partly due to the fact that they have never been designed for this type of application, so significant improvements can be achieved with design changes. Although these improvements are likely to pave the way for partial systems or smaller aircraft, they clearly will not be sufficient to power large, long-haul aircraft. However, adoption of the new technology of superconducting cryogenic electrical systems brings significant performance improvements and enables the creation of high-power, efficient systems suitable for large aircraft. Furthermore, the use of these systems justifies the use of cryogenic fuels which, in themselves, can significantly reduce aircraft emissions. The paper explains how this is possible, and the research and development work required to achieve these goals.

14:25

Challenges in achieving high power-density motor/generator technologies for hybrid electric propulsion

Cristian Anghel
Technology fellow
Honeywell Aerospace
USA
The presentation will address the challenges in achieving high power-density motor and generator technologies that enable hybrid electric propulsion. Compact and efficient motors and generators are key technologies that support the goals of hybrid electric propulsion. The primary objective is to drive overall system efficiencies as high as possible while reducing system weight, by increasing the power density and subsystem simplicity. Various electric machine topologies and design approaches that support these aims will be reviewed. Design challenges, technical solutions and testing and integration challenges will be presented.

14:50

Addressing the challenges of lightweight electric propulsion through air-gap windings

Prof Phil Mellor
Professor of electrical engineering
University of Bristol
UK
The delivery of power-dense electrical drives for aircraft propulsion will require radical changes to the way electrical machines are manufactured. The flux-carrying limitations of soft magnetic materials are becoming a major barrier to further improvements in power density, and the replacement of conventional toothed stator designs with air-gap windings has been shown to have advantages. However, the implementation of an air-gap winding imposes new design challenges. The presentation will review these challenges and opportunities. In particular, the prospects of using multi-functional composites based on a fiber-reinforced conductor matrix in lightweight air-gap-wound electrical machines will be discussed.

15:15 - 15:45

Break

15:45

E-flying motors – optimizing power density and efficiency

Dr Sami Ruoho
Product manager
Arnold Magnetic Technologies
UK
Low weight and power density are decisive targets when designing motors for electrical aircraft. These targets can be achieved by using high-performance materials in optimized arrangements. The presentation discusses high-performance SmCo and GBD-NdFeB magnet materials enabling the highest power products, including at elevated temperatures. It will also cover the use of laminated magnets to reduce eddy-current losses in rotors and Halbach magnet arrangements to optimize performance. To maximize the stator efficiency, the benefits of thin-gauge silicon steel will be demonstrated.

16:10

Power-dense electric motors using additive manufacturing

Simon Jones
Technical director
HiETA Technologies Ltd
UK
Additive manufacturing has the potential to solve one of the key challenges facing electric propulsion technology: power density of electric motors. As rotational speeds increase, reducing inertia and thermally managing key components are crucial to reducing the size and weight of e-machines. HiETA is partnering with Equipmake to combine world-class thermal management and materials processing knowledge with expertise in power-dense electric machinery. It is currently developing a heavily integrated motor/power electronics/gearbox system capable of achieving power densities in excess of 20kW/kg. This presentation will discuss how key thermal and structural challenges are being tackled using additive manufacturing.

16:35

Highest-performance electric systems – from track to sky

Andrew Cross
Chief technical officer
Integral Powertrain Ltd
UK
Integral Powertrain has developed some of the world’s most power-dense electric motors and inverters for racing applications, including the record-breaking and multi-awarding-winning system for the VW I.D. R Pikes Peak car. This presentation covers the basics that enable power density and gives an insight into the current art-of-the-possible in top-end motorsport, including efficiency data. In a move from track to sky, some designs for next-generation aerospace applications that could deliver world-leading motor concepts with power densities of over 45kW/Kg, and integrated inverters beyond 100kW/kg, will be presented.
Please note: this conference program may be subject to change