1

Virtual Conference Program 8-9 April 2021

5th IEEE Workshop on Electrical Machine Design, Control and Diagnosis –

WEMDCD 2021

WEMDCD 2021 is hosted by

Sponsors

WEMDCD 2021 SPONSORS

2

EXHIBITING SILVER SPONSORS

Raw Power S.R.L.

Siboni S.r.l.

WEMDCD 2021 SPONSORS

Welcome from General Co-ChairsIt is a great pleasure to welcome you to the 5th IEEE Workshop on ElectricalMachine Design, Control and Diagnosis, (WEMDCD 2021), from April 8 to April 9,2021. WEMDCD is sponsored by IEEE-IES Industrial Electronics Society and IEEE-IASIndustry Applications Society and has now set the tradition of an internationalworkshop where up-to-date research activities in electrical machines and drives arepresented. Every two years, we bring together a multidisciplinary group ofresearchers, engineers, and scientists to present and exchange breakthrough ideas.

The last one has been a very challenging year due to the COVID-19 pandemic. Withthe safety and wellbeing of our participants as our top priority, WEMDCD 2021—originally planned to be held in Modena, Italy—has been converted to a fully virtualconference. To provide maximum flexibility for the participants, the WEMDC 2021virtual conference program includes live streaming oral presentations as well asrecorded presentations displayed in live-interactive poster sessions, where theauthors will have the opportunity to quick introduce their work and being engagedin Q&A sessions. Two poster sessions are also sponsored by European fundedprojects under the framework of Horizon 2020 programme: AUTO-MEA andDORNA which make us very proud.

Giovanni Franceschini Davide Barater

The 2021 edition will have a focus on automotive and transport applications and will include a significant number of invited contributions fromresearchers working in academia and in R&D in the industry sector. A special thanks in this sense goes to the University of Modena and Reggio Emilia –UniMORE and MUNER – The Motorvehicle University of Emilia-Romagna, which made possible to organize four plenary talks on the challenges in theelectrification of the transportation sector, from Andrea Pontremoli – CEO and General Manager Dallara, Nicholas Hale – Technology Director, AdvancedDrivetrain Off-Highway CNH Industrial, Mykhaylo Filipenko – Former Director Center of Competence Electric Machines “Higher Power” Rolls-RoyceElectric and Prof. Chris Gerada – Associate Pro-Vice-Chancellor University of Nottingham, UK. We are extremely fortunate to have these fourdistinguished leaders from industry and the scientific community to share their wisdom and visions with us.

We would like to express our utmost gratitude to the members of the WEMDCD 2021 Organization Committee, the International Steering Committee,and the IEEE MCE team, who have made this event possible through their hard teamwork, selfless dedication, and numerous extra hours dealing with thefluid situation of the pandemic. We would like to thank our silver sponsor, Raw Power srl and Siboni Srl as well as The Emilia-Romagna region and City ofModena for their generous support. We would like to thank each and every one of you, whether you are a paper presenter, an attendee, an exhibitor, avolunteer, or any combination of the above, for your contribution and participation.

Once again, We sincerely welcome you to WEMDCD 2021 and please enjoy the exciting virtual conference program.

Organizing Committees

• General Co-ChairØ Davide Barater, ItalyØ Giovanni Franceschini, Italy

• International Steering CommitteeØ Babak Fahimi, USAØ Gérard-André Capolino, FranceØ Aldo Boglietti, ItalyØ Leila Parsa, USAØ Franck Betin, FranceØ Antonios Kladas, GreeceØ Chris Gerada, UKØ Humberto Henao, FranceØ Radu Bojoi, Italy

• Publication Co-ChairØ Antonio Luque, SpainØ Andres Nogueiras, Spain

• Award CommitteeØ Gérard-André Capolino, FranceØ Chris Gerada, UKØ Radu Bojoi, Italy

Organizing Committees

• Technical Program Co-ChairØ Giampaolo Buticchi, ChinaØ Andrea Cavallini, ItalyØ Stefano Nuzzo, ItalyØ Savvas Papadopoulus, UK

• Publicity Co-ChairsØ Gérard-André Capolino, FranceØ Jose Antonino-Daviu, SpainØ Luca Zarri, ItalyØ Alberto Tessarolo, ItalyØ Cao Wen, UKØ Carlo Cecati, ItalyØ Michael Galea, ChinaØ Francesco Cupertino, ItalyØ Fernando Briz, SpainØ Gianmario Pellegrino, Italy

• Local Organisation CommitteeØ Emilio Lorenzani, ItalyØ Fabio Immovilli, ItalyØ Claudio Bianchini, ItalyØ Luigi Alberti, ItalyØ Cinzia Tedeschi, Italy

• TreasurerØ Fabio Immovilli, Italy

WEMDCD Program

•

••

•

WEMDCD Keynote speakers listAndrea Pontremoli – Dallara CEO and General ManagerTitle: “Shaping the future of automotive sector and racing cars”Abstract:The change we see in the transportation industry today is driven by new technology startups as well as traditional market leaders. Automotive companies are increasing the budgets for innovative R&D, innovation labs, investments and M&A to cope with the rapid improvements in vehicle fuel efficiency requested by the target emission cuts of 2025 and 2030. Keynote Speaker Andrea Pontremoli is explaining the key technology trends and economic dynamics that change transportation from the ground up. Throughout the experience of Dallara, which has been developing racing cars since 1972, Pontremoli will address us on how the supercar sector is evolving and about the recent Bosch-Dallara partnership, that aims at designing the supercar of the future which first full electric prototype was unveiled in October 2020.

Nicholas Hale – CNH Industrial Technology Director, Advanced Drivetrain Off-HighwayTitle: “Future trends and challenges for electrification of off-road vehicles”Abstract:Electrification in non-road mobile machinery such as tractors is still at an initial stage. For these vehicles, the movement is only a limited part of the work duty, since mechanical power to the power take off (PTO) or to hydraulic remotes is typically required.This results in a difficult identification of the best electrification strategy for the vehicle.Nevertheless, the interest in more-electric tractors is very high and increasing. At the moment there is a stringent need to create the background, currently missing, to face the design of a complete more electric tractor system, identifying, among the others, the best electrification structure topology to be adopted, the load requirement for different operations and the components currently used that need to be redesigned. With this speech, we address the technological challenges and possible future perspectives of off-road vehicle electrification through the experience of CNHi.

WEMDCD Keynote speakers list

Prof. Chris Gerada – University of Nottingham, UK Associate Pro-Vice-ChancellorTitle: “Power Electronics and Machines for the More Electric Aircraft”Abstract:In the recent years, research has focused in assisting the progressive increase in transportation electrification. Many reasons have driven this effort, including the push for the reduction in pollution (often enforced by international agreements), the research for better performance and the maturity of the technology. The aerospace industry will require a new generation of electrical machines and drives, able of a step change in power rating and power density compared to existing technology. This presentation will first highlight the main challenges and requirements for electrical machines for hybrid aircraft including those for generator-sets and for propulsion. Then, Prof. Gerada will lead us to the recent technology developments in pushing the boundaries of electrical machine performance for airborne applications through: new electrical machine-drive topologies, the application of new materials, advancements in health monitoring algorithms and faster switching power electronics.

Mykhaylo Filipenko Former Director Center of Competence Electric Machines “Higher Power” Rolls-Royce ElectricTitle: “Urban Air Mobility – Status, Challenges, Perspectives”Abstract:As the world of Urban Air Mobility starts to turn from a dream into a reality, join this keynote speech as we look at what is happening across this new sector. Urban Air mobility is receiving more and more attention and is becoming an opportunity to start a new urban mobility paradigm. While the propagated dream of reducing congestion and traffic jams is still far away, eVTOLs have the potential to replace classical helicopters in many applications and open new ones that were not economically feasible before. Although, most VTOL concepts that are proposed today were already known back in the 70s and have not gone much further than prototyping, the availability of very power dense motors and power electronics allows to rethink these concepts in the context of electric propulsion. With this speech, we address the technological challenges in the design of these systems, with an eye to future prospective and target performance for electrical machines and power electronics.

WEMDCD ProgramThursday 08th April 2021

IMPORTANT NOTICE: the scheduled times are expressed as Central European Summer Time (CEST) = Coordinated Universal Time (UTC) + 2h due to daylight savings time being in effect. A useful tool to convert the time in other time zones is here

08:30 Workshop opening 08:30-09:00 Welcome speech Welcome committee

Keynote session 1 – Chair Dr. Davide Barater/Prof. Giovanni Franceschini09:00-09:45 Keynote 1 Title: “Shaping the future of automotive sector and racing cars” Andrea Pontremoli – Dallara09:45-10:30 Keynote 2 Title: “Future trends and challenges for electrification of off-road vehicles” Nicholas Hale – CNH Industrial Technology10:30-10.45 Break – Virtual Coffee

Speaker session 1 - Electrical Machine Design and Modelling 01 – Chair Dr. Stefano Nuzzo

10:45-11.15 MD-000698 - Potentials and Limits of Three-Phase Fractional-Slot Concentrated Winding OptimizationAlberto Tessarolo, Nada Elloumi, Cesare Ciriani, Mario

Mezzarobba

11:15-11.45MD-000787 - Review of Advanced Cooling Systems of Modern Electric Machines for EMobility

Application Yew Chuan Chong, Dave Staton, Yaohui Gai, Husain Adam,

Mircea Popescu

11:45-12.15 MD-000043 - Experimental Evaluation of Conductor Insulations Used in E-mobility Traction MotorsXiaoliang Huang, Bowen Jiang, Mohammad Numair Alhallak,

Shafigh Nategh, Yujing Liu, Aldo Boglietti12.15:12.50 Lunch break

Parallel poster sessions 1 and 2

12:50-14:30 Poster session 1 - Electrical Drives Reliability and Monitoring 02 – Chair Dr. Claudio Bianchini

12:50-14:30 Poster session 2 - Electrical Machine Design and Modelling 04/ Industrial and Transport Applications of Machines and Drives 02 – Chair Prof. Luigi Alberti

14.30:14.45 Break – Virtual Coffee

Speaker session 2 - Industrial and Transport Applications of Machines and Drives 01 – Chair Dr. Savvas Papadopoulos

14:45-15.15MD-001414 - Integrated On-Board EV Battery Chargers: New Perspectives and Challenges for Safety Improvement

Mauro Valente, Thiwanka Wijekoon, Francisco Freijedo, Paolo Pescetto, Gianmario Pellegrino, Radu Bojoi

15:15-15.45 MD-001317 - Computationally Efficient System-Level Evaluation of Battery Electric Vehicles Gerd Bramerdorfer, Edmund Marth

15:45-16.15MD-000566 - Climbing performance enhancement of small fixed-wing UAVs via hybrid electric propulsion Gianpietro Di Rito, Aleksander Suti, Roberto Galatolo

16:15-16:30 Break – Virtual Coffee

Speaker session 3 - Electrical Drives Reliability and Monitoring 01 – Chair Prof. Andrea Cavallini16:30-17.00 MD-001457 - State of the art of torque observers for condition monitoring of AC drives Mehdi Taherzadeh, Humberto Henao, Gerard-André Capolino

17:00-17.30MD-000612 - Application of Transient Analysis to Detect Rotor and Stator Asymmetries in Wound Rotor Induction Motors: a Field Case

Jose Antonino-Daviu, Israel Zamudio-Ramirez, Roque Osornio-Rios, Larisa Dunai, Alfredo Quijano-Lopez

17:30-18.00 MD-000116 - Accelerated Destructive Experiment Design of Motor Stator Winding Insulation Systems Bowen Jiang, Xiaoliang Huang, Yujing Liu, Shafigh Nategh

Friday 09th April 2021IMPORTANT NOTICE: the scheduled times are expressed as Central European Summer Time (CEST) = Coordinated Universal Time (UTC) + 2h due to daylight savings time being in effect.

Keynote session 2 – Chair Dr. Davide Barater/Prof. Giovanni Franceschini

09:00-09:45 Keynote 3 Title: “Urban Air Mobility – Status, Challenges, Perspectives”Mykhaylo Filipenko - Former Director Center of Competence Electric

Machines “Higher Power” Rolls-Royce Electric09:45-10:30 Keynote 4 Title: “Power Electronics and Machines for the More Electric Aircraft” Prof. Chris Gerada – University of Nottingham, UK10:30-10.45 Break – Virtual Coffee

Speaker session 4 - Electrical Drives and their Control 01 – Chair Dr. Stefano Nuzzo

10:45-11.15MD-001279 - Per-phase Analysis and Efficient Implementation of a 24-Sector Discontinuous PWM for Split Phase

Induction Motor DrivesLalgy Gopi, Gopalaratnam Narayanan

11:15-11.45 MD-000477 - Torque Ripple Suppression for IPMSM using FEA-based Model Predictive Direct Torque ControlAhmed Nasr, Chunyang Gu, Weiduo Zhao, Serhiy Bozhko, Chris Gerada

11:45-12.15 MD-000965 - Assessment of Master-Slave and Droop Control Strategies in Multi-Three-Phase DrivesDario Benatti, Ciro Alosa, Emilio Carfagna, Fabio Immovilli, Emilio Lorenzani

12.15:12.50 Lunch break

Parallel poster sessions 3 and 4

12:50-14:30Poster session 3 - Electrical Drives Reliability and Monitoring 03/Electrical Machine Design and Modelling 05 – Chair Prof. Wen Cao – Session sponsored by H2020 MSCA-RISE

Project DORNA

12:50-14:30Poster session 4 - Electrical Drives and their Control 02/Industrial and Transport Applications of Machines and Drives 03 – Chair Prof. Emilio Lorenzani – Session sponsored by

H2020 Clean Sky 2 Project AUTO-MEA

14.30:14.45 Break – Virtual Coffee

Speaker session 5 - Electrical Machine Design and Modelling 02 - Chair Prof. Fabio Immovilli

14:45-15.15MD-001201 - Design considerations for cost effective Radial Flux Interior Permanent Magnet Motors with increased

Demagnetization RobustnessGeorgios Sakkas, Antonios Kladas

15:15-15.45 MD-000744 - Flux-Map Based FEA Evaluation of Synchronous Machine Efficiency MapsSimone Ferrari, Paolo Ragazzo, Gaetano Dilevrano, Gianmario Pellegrino

15:45-16.15 MD-000507 - SuMRAS: a new SPMSM Parameter Identification in Cloud Computing EnvironmentDonatello Costantino, Elia Brescia, Paolo Massenio, Giuseppe Cascella, Francesco Cupertino

16:15-16:30 Break – Virtual Coffee

Speaker session 6 - Electrical Machine Design and Modelling 03 – Chair Prof. Giampaolo Buticchi16:30-17.00 MD-000353 - Modeling of Hybrid Stepper Motor Finalized to the Optimization of the Holding Torque Luca Mariolo, Alberto Rubino, Davide Spelta, Lucia Frosini

17:00-17.30 MD-000655 - Open and Closed Rotor Slots Design of Single and Double Cages Induction MotorMauro Di Nardo, Alessandro Marfoli, Michele Degano, Chris Gerada

17:30-18.00 MD-001295 - Design of a High-Speed Wound-Field Synchronous Generator for the More Electric AircraftMarcello Gino Pasquinelli, Paolo Bolognesi, Alessandro Guiducci, Stefano Nuzzo, Michael Galea

18:00 Award Ceremony - Workshop close

WEMDCD Program

Thursday 08th April 2021

12:50-14:30 Poster Session 1Electrical Drives Reliability and Monitoring 02

MD-000213 Rotor Fault Detection of Induction Machines with Optimal Wavelet Transform Michele Sintoni, Alberto Bellini, Diego Forlivesi, Claudio BianchiniMD-000396 Iron Losses of Dual-Star PMSMs with Open-Circuit Fault under Fault-Tolerant Control Abdolmajid Abedini Mohammadi, Adrian-Cornel Pop, Johan GyselinckMD-000957 About the Modelling of Effects caused by Fast Switching Semiconductors operating Low Voltage Electrical

MachinesMoritz Kilper, Hristian Naumoski, Kay Hameyer

MD-000523 Fault Diagnosis in a belt-drive system under non-stationary conditions. An industrial case study Andrea Bonci, Sauro Longhi, Giacomo NabissiMD-000833 Comparative Analysis Between Unscented and Extended Kalman Filters for PMSG Inter-Turn Fault

DetectionWaseem El Sayed, Ahmed Aboelhassan, Amr Madi, Ahmed Hebala, Michael Galea

MD-001171 ANN-approach for ITSC Fault Diagnosis of Induction Motor Lazar Amat Ellah Noussaiba, Ferdjouni AbdelazizMD-001368 Experimental Study on the External Shaft Axial Flux in Squirrel-Cage Induction Motors JosÈ Alberto, AnÌbal T. de Almeida, Fernando J. T. E. FerreiraMD-000418 Finite Element Analysis of the Tolerance of Multi-phase Induction Motors regarding the Stator Winding

FailuresVirgiliu Fireteanu, Constantin Dumitru, Alexandru-Ionel Constantin

MD-001392 Insights into the Definition of Converter Surge Rise Time and its Influence on Turn/Turn Electrical Stress Alberto Rumi, Jacopo Gabriele Marinelli, Marco Pastura, Davide Barater, Andrea Cavallini

MD-001449 A review on the comparison of conventional and corona resistant nanofilled enamels Francesco Guastavino, Luca Briano, Federico Gallesi, Eugenia Torello

12:50-14:30 Poster Session 2Electrical Machine Design and Modelling 04

Industrial and Transport Applications of Machines and Drives 02

MD-000485 A Study on Damper Bar and Integrated Rotor Slit of a Field Winding Synchronous Machine M. Jahirul Islam, Reza Rajabi Moghaddam, Shafigh Nategh, Jose Alfonso Antonino-Daviu, Aldo Boglietti

MD-000647 Influence of Manufacturing and Drive Effects in High-Speed, High-Power-Density PM Machine for Flooded Pump Application

Mahir Al-Ani, Ahmed Al-Timimy, Paolo Giangrande, Michele Degano, Pia Lindh, He Zhang, Michele Galea, Chris Gerada

MD-000035 Permanent Magnet Reduction by Current Harmonics Injection for Surface Permanent Magnet Machines Daniele De Gaetano, Giacomo Sala, Michele Degano, Chris Gerada

MD-000388 Optimal Design of Magnetic Hysteresis Couplers Gianvito Gallicchio, Mauro Di Nardo, Marco Palmieri, Francesco Cupertino

MD-000701 Comparative Study of Motor Topologies for Electric Power Steering System Han Yang, Sul Ademi, Jesus Paredes, Richard McMahonMD-000825 On the Radial Scalability of Magnetic Hysteresis Couplers Gianvito Gallicchio, Marco Palmieri, Mauro Di Nardo, Francesco

CupertinoMD-000868 Electric Drives for Hybrid Electric Agricultural Tractors Elia Scolaro, Luigi Alberti, Davide BaraterMD-001309 Feasibility Study and Reliability Assessment of an Electrified Commuter Train Jorg Kammermann, Igor Bolvashenkov, Hans-Georg Herzog, Stefania

Mazzucato, Silverio Bolognani, Ilia FrenkelMD-000086 A Comparison of Current Determination Strategies for the IPMSM Considering Magnetic Saturation, Core

Losses and Resistance VariationNicholas Turton, Christopher Pearce, Alessandro Galassini, Michele Degano

MD-000736 The Identification of load-side inertia for the magnetic drive train Xiaowen Liao, Chris Bingham, Tim Smith

WEMDCD Program

Friday 09th April 2021

12:50-14:30 Poster Session 3 - Session sponsored by H2020 MSCA-RISE Project DORNAElectrical Drives Reliability and Monitoring 03/Electrical Machine Design and Modelling 05

MD-000892 Materials for Electric Machines Suited for High-Temperature Applications: a Survey Amedeo Vannini, Alessandro Marfoli, Luca Papini, Paolo Bolognesi, Christopher Gerada

MD-000922 3D Lumped Parameter Thermal Network for Wound-Field Synchronous Generators Yinli Wang, Stefano Nuzzo, Chris Gerada, Weiduo Zhao, He Zhang, Michael GaleaMD-000205 Design of the Propulsion System for a Formula SAE racing car based on a Brushless Motor Giampaolo Devito, Stefano Nuzzo, Davide Barater, Giovanni Franceschini, Paolo

Bolognesi, Luca PapiniMD-001112 An Efficiency Estimation Method for Inverter Fed Induction Motors Johnny Rengifo, José AllerMD-001287 A Comparison between Hybrid Excitation and Interior Permanent Magnet Motors Luca Cinti, Daniele Michieletto, Nicola BianchiMD-001325 Application of an accurate calculation method for dual three-phase PMSM Daniel Keller, Akif Karayel, Nejila ParspourMD-001341 Fast Analytical-Numerical Modelling of Rotor Eccentricity for Radial Active Magnetic Bearing. Tiziano D'Aversa, Luca Papini, Paolo BolognesiMD-001376 Design and thermal assessment of a high performance electric motor for racing applications Nicola Rossi, Nicola Matteazzi, Giovanni Luca Petti, Lorenzo Fazzini, Stefano Nuzzo,

Davide Barater, Giovanni FranceschiniMD-001406 syreDrive: Automated Sensorless Control Code Generation for Synchronous Reluctance Motor

DrivesDario Brunelli, Anantaram Varatharajan, Simone Ferrari, Paolo Pescetto, Gianmario Pellegrino

MD-000191 Analytical Modelling of Harmonics in an Exciterless Synchronous Generator Daniel Fallows, Stefano Nuzzo, Michael Galea

12:50-14:30 Poster Session 4 - Session sponsored by H2020 Clean Sky 2 Project AUTO-MEAElectrical Drives and their Control 02/ Industrial and Transport Applications of Machines and Drives 03

MD-000426 Hairpin Winding: Sensitivity Analysis and Guidelines to Reduce AC losses Eraldo Preci, Stefano Nuzzo, David Gerada, Davide Barater, Michele Degano, Giampaolo Buticchi, Christopher Gerada

MD-000515 Litz Wire Strand Shape impact analysis on AC Losses of High-Speed Permanent Magnet Synchronous Motors

Maria S. C. Pechlivanidou, Antonios Kladas

MD-001023 Improved Propulsion Motor Design for a Twelve Passenger All-Electric Aircraft Ahmed Hebala, Stefano Nuzzo, Peter Connor, Paolo Giangrande, Chris Gerada, Michael Galea

MD-001252 Design Study on Additive Manufacturing Technologies in Permanent Magnet Synchronous Machines for Electric Aircraft

Dennis Kifel, Stefan Urbanek, Bernd Ponick

MD-000132 Multi Three-Phase Hairpin Windings for High-Speed Electrical Machine: Possible Implementations

Marco Pastura, Stefano Nuzzo, Davide Barater, Giovanni Franceschini

MD-000051 Hybrid Sensorless Motor Control in aerospace applications, a survey in sensorless control, optimizing for availability and acoustic noise

Stefanos Skoulaxinos, Pat Wheeler, Gaurang Vakil

MD-000175 Considerations on the Preliminary Sizing of Electrical Machines with Hairpin Windings Mohammad Soltani, Stefano Nuzzo, Davide Barater, Giovanni FranceschiniMD-000124 Impedance-based Stability Analysis of Permanent Magnet Synchronous Generator for the

More Electric AircraftJiajun Yang, Giampaolo Buticchi, Chunyang Gu, Pat Wheeler

MD-000302 Discrete Flux Weakening Controller Design for Future Aircraft Electric Starter/Generator System Operating in High-Speed Range

Ahmed M.iIab, Seang Shen Yeoh, Serhiy Bozhko, Feng Guo, Chris Gerada, Michael Galea

WEMDCD Program

WEMDCD 2021, Modena, Italy

UniMore is partner of MUNER – The Motorvehicle University of Emilia-Romagna - a consortium made by tenautomotive companies and the four main universities of Emilia-Romagna, merged together to design the 6 AutomotiveEngineering Careers of the future. (https://motorvehicleuniversity.com/)