COMSOL Day: Power & Energy

September 29, 2020 Zürich 8:45 AM - 5:00 PM CEST

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Join us online for COMSOL Day: Power & Energy in Zürich for a full day of energy-related modeling and virtual interaction with the simulation experts in the electrical power industry.

Learn how COMSOL Multiphysics® can accelerate research and development of high voltage equipment, smart grids and transformers.

You will get an overview of the electromagnetic modeling capabilities in the COMSOL® software and will see how you can streamline the simulation workflow by building and deploying applications.

Get together with peers to know the new industry developments, engage in product demonstrations, and ask questions to COMSOL technical staff. There will be interactive Tech Cafés run in parallel with the main sessions.

COMSOL Day: Power & Energy is free of charge. Feel free to invite your colleagues!

All attendees will receive a free two-week trial licence of the COMSOL Multiphysics® software for use both during and after the event.

Schedule

8:50

Please join us 10 minutes before the presentation starts to settle in and make sure that your audio and visual capabilities are working.

9:00

To start, we will briefly discuss the format of the day and go over the logistics.

9:15
Parallel Session
Modeling of Busbars and Cables in DC and AC

The design of cables and busbars can benefit largely from multiphysics simulation. Get an overview of the capabilities for modeling direct- and alternating-current systems and their resistive, capacitive, inductive, and electrothermal behavior.

Tech Café: Simulation Apps in the Power & Energy Sector

Simulation apps enable you to expand your modeling and give more control to your colleagues who require simulations for their designs and processes. You can create user-specific modeling environments that are best suited to their simulation needs while also being intuitive enough for them to use, even if they are not modeling experts. During this Tech Café, we will introduce the application building and deployment tools of COMSOL and discuss specific examples from the power & energy sector.

10:00
Q&A/Break
10:15
Invited Speakers
Romeo Bianchetti, LEONI Studer AG

Digitalization in the Cable Business: Toward Self-Monitoring Cable Systems in the Field Based on Digital Twins Backed by COMSOL® Simulations

At Leoni, we are not only working toward even more reliable, performant cables by simulating their electric, magnetic, mechanical, and thermal properties but also bringing our customer applications to our design board. Based, among others, on multiphysics simulations, we prepare digital twins of our data and energy cables, which can then be used in all phases of our customer’s application life cycle, from finding the right cable for a given application (for example, anticipating different environmental conditions or use cases) during the system design phase to condition monitoring and even turnkey predictive maintenance solutions. We will briefly present cable simulations in different physical domains from different applications, as well as their validation. Finally, we will discuss an exemplary development and the advantages of the digital twin of an actively cooled high-performance charging cable for electric vehicles.

Jasha Poliakine, FAULHABER PRECIstep

Modeling and Design of Stepper Motors: Challenges and Opportunities

Stepper motors (SM) are a particular class of synchronous electrical machines which differ significantly, in terms of both construction and final use, from their more famous siblings like DC and Brushless motors. The step-by-step motion proper of these devices is typically achieved by optimizing motor geometry in order to modulate cogging torque and define stable equilibrium positions, or “steps”, along the rotor revolution. However, as complexity increases, a purely analytical modeling approach becomes more challenging, impractical or even impossible. Moreover, due to the high number of magnetic pole pairs typically implemented in SM (12 or more), high frequency effects (e.g. eddy currents) are triggered at relatively low operational speeds, making them basically non negligible even in an early design phase. In this context, it becomes evident the capital importance of a Finite Elements based approach for a comprehensive description of SM and their subsequent optimization. In this sense, COMSOL Multiphysics has allowed us to investigate and identify nontrivial issues affecting motor performances, and overcome them in an effective, targeted manner.

11:15
Break
11:30
Parallel Session
Modeling EM Shielding and Dielectric Stress

Simulations can provide important insight into the context of EMC and EMI testing. Learn about best practices for simulating the shielding of static and dynamic electric and magnetic fields, including the use of nonlinear materials, thin layers, and the modeling of charge relaxation effects.

Tech Café: Inductive Heating

Inductive heating is a typically unwanted effect in all HVAC appliances. Multiphysics modeling empowers you to capture electrothermal heating processes caused by eddy currents accurately. In this Tech Café, we will discuss which specific concepts are available in COMSOL Multiphysics® to accurately account for bulk and surface EM losses in different time scales and couple them to heat transfer simulations.

12:15
Break for Lunch
12:55
Welcome Back: Some Useful Resources
13:00
Parallel Session
Transformer Design: A Multiphysics Approach

The quality of transformers is characterized by effects covering a wide range of physics: electromagnetic efficiency, electric and magnetic losses, stray fields, heating, and even noise emission. Discover how multiphysics simulation can help you predict the performance of transformers.

Tech Café: Meshing in Low-Frequency Electromagnetics

Generating a mesh that is both fine enough to capture the physical phenomenon and give accurate results and computationally efficient is a compromise and requires different meshing techniques. During this Tech Café, we will discuss how best to generate meshes for typical situations encountered in low-frequency EM models, including boundary layer meshes, infinite elements, rotating domains, and thin layers.

13:45
Q&A/Break
14:00
Invited Speakers
Ahmed Akram Mirza, Hitachi ABB Power Grids

A Multiphysics Approach for Thermal Management of High-Voltage Equipment

In recent times, more and more HVDC converter stations are designed to be installed indoors. This has increased the demand on HVAC/climate systems to be rated efficiently and economically. A poorly designed HVAC can trip the whole station, which may lead to financial loss and hamper daily life due to our heavy dependence on electricity. At Hitachi/ABB, we use CFD simulations to calculate and optimize temperature and velocity distributions for the indoor airflows of HV equipment. In addition to other tools, we use COMSOL Multiphysics® to study natural and forced convection in order to design an optimized ventilation system. These simulations are very time and memory intensive since the majority of these flows are convectively driven, which can give rise to numerical instability. We use the CFD Module and have found it to be a reliable design tool. The simulation results are extensively benchmarked with measurements onsite. A CFD application for transformer enclosure has also been developed that is used to compute initial design during tender stage for cost assessment.

Ishant Jain, Raychem RPG

Designing Compact Energy Distribution Products with Multiphysics Modeling

Traditional power boxes (or feeder pillars) are mounted in the street and control the electrical supply to dwellings within a neighborhood. As smart cities increasingly prioritize aesthetics and continue to place a high value on urban living, there is a need for less conspicuous and compact power boxes. The size of the traditional design holds the hardware necessary to reduce the high power of the long-distance power line to a power suitable for distribution to homes, businesses, and small industries. The worthy goal of reducing the size of the power boxes comes with the additional challenge of routing power in a lesser footprint while considering resistance, structural integrity, and Lorentz forces — not an insignificant undertaking. A multiphysics approach using COMSOL Multiphysics® has been undertaken to design such innovative compact systems, analyzing this at a subcomponent level, to tackle the engineering challenges that accompany the creation of this radical new design. Among the various proposed configurations of feeder pillars, a compact vertical feeder pillar is modeled and simulated as per the International Electrotechnical Commission (IEC) standard test requirement and evaluated in terms of accuracy and ease of use. The simulation models are designed to evaluate the short circuit withstanding capability of the FPB system and understand electromechanical integrity under full loading conditions, which has helped to redesign the FPB system configuration with the lowest footprint possible. The models so developed are validated experimentally with an in-house developed prototype and benchmarked extensively for other variants of power boxes.

15:00
Break
15:15
Parallel Session
Optimization in Power Electromagnetics

Designing power electromagnetics systems can often involve optimization tasks such as realizing predefined field strengths or gradients, particularly regions of space, minimizing power losses, or maximizing performance. In this session, we discuss how to optimize physical and geometrical parameters of your EM systems using the Optimization Module.

Tech Café: Modeling Electromagnetic Forces

The basic requirement for the design of electrical machines like motors, generators, and brakes is a fundamental understanding of EM forces and torque. In this session, we discuss and compare the pros and cons of several methods of calculation.

16:00

Bring your questions and feedback.

COMSOL Speakers

Sven Friedel
COMSOL
Sven Friedel established the COMSOL branch office in Switzerland in 2004. He received his PhD in physics from the University of Leipzig in the field of inverse electromagnetic problems. There, he also taught lectures in geomagnetism and volcanology before joining the Institute of Geotechnical Engineering at ETH Zürich as a postdoctoral researcher.
Roman Obrist
COMSOL
Roman Obrist is a technical sales and applications manager at COMSOL. He received his MSc in electrical engineering from the University of Applied Sciences Rapperswil (HSR). There, he was a scientific researcher and project leader in the Computational and Applied Electromagnetics Group, dealing with customer-related research and teaching tasks.
Andrea Radu
COMSOL
Andrea Radu is an applications manager at the Swiss COMSOL office. She's previously worked at ETH Zürich on porous media transport. Andrea is a chemical engineer with an MS in food science from Université Blaise Pascal, Clermont-Ferrand and a PhD from TU Delft in the field of membrane processes for water treatment.
Walter Frei
COMSOL
Walter Frei has been with COMSOL since 2008. He received his PhD in mechanical engineering from the University of Illinois at Urbana-Champaign, working on the optimization of photonic crystal microcavity lasers.
Zoran Vidakovic
COMSOL
Zoran Vidakovic joined the Swiss COMSOL office in 2010. He received his MS degree in mechanical engineering from ETH Zürich. At the Laboratory for Energy Conversion, he specialized in turbomachinery, heat transfer, and fluid dynamics. His industrial internship was completed in the R&D department of MAN Diesel & Turbo Schweiz AG.
Christoph Gordalla
COMSOL
Christoph Gordalla is an applications engineer at Comsol Multiphysics GmbH. Prior, he received a master’s degree in solid-state physics at RWTH Aachen University with his research focusing on the simulation of superparamagnetic iron-oxide nanoparticles in capillary vessel systems.
Thierry Luthy
COMSOL
Thierry Luthy joined COMSOL in 2006 and currently works as a technical sales manager. He studied physics at the University of Neuchâtel. After his diploma, he worked at the EMPA Dübendorf for two years. Thierry received his PhD in the field of composite materials from the ETH Zürich.
Fabio Greco
COMSOL
Fabio Greco joined COMSOL in 2018 as a technical sales and applications engineer. His background is in mechanical engineering, with an MSc from the Polytechnic of Turin and a PhD from the Swiss Federal Institute of Technology Lausanne (EPFL) in the field of structural mechanics for high-temperature energy conversion.

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COMSOL Day Details

Invited Speakers

Romeo Bianchetti
LEONI Studer AG

Dr. Romeo Bianchetti trained as an experimental physicist. During his PhD, he counted single electrons among the first coupled microwave-controlled superconducting quantum bits. He then moved to ABB corporate research, where he helped develop arc-based and hybrid switching devices and electrical protection systems by combining smart simulation tools and carefully designed laboratory experiments. As of today, he is team leader of digital twins at LEONI Studer AG, where he is in charge of the development of simulation-based solutions for diverse customers.

Jasha Poliakine
FAULHABER PRECIstep

Dr. Jasha Poliakine received his PhD in manufacturing systems and robotics from EPFL in 2017. His research activity focused on the modeling and fabrication of small-scale electromagnetic components and actuators. In 2018, he joined the R&D department of FAULHABER Group, one of the largest manufacturers of electric motors and drives worldwide, where he is currently responsible for Stepper motor design and optimization. He leads several development projects and adopts COMSOL Multiphysics® as a main tool in his daily activity.

Ahmed Akram Mirza
Hitachi ABB Power Grids

Ahmed Akram Mirza is working as a senior project engineer at Hitachi ABB Power Grids. He has extensive experience of thermal modeling of high-voltage equipment. His expertise also involves working with electromagnetics for power systems. Ahmed is a member of CIGRÉ and IEC national technical committees representing ABB Sweden in the field of power distribution systems. Ahmed received his PhD from the Department of Electrical Engineering at the Royal Institute of Technology (KTH), Stockholm, Sweden.

Ishant Jain
Raychem Innovation Center

Ishant Jain is a research & development (R&D) professional with more than 10 years of industry exposure and academic research experience. He has proven competence across a gamut of domains, including electrical, mechanical, materials, steel making, and manufacturing. He has expertise across the fields of overhead equipment for railway tractions, HV/LV electrical accessories for power distributions like insulators and connectors, polymers, industrial heating, steel making and casting processes, and transformers. Ishant Jain is currently working as head of the department (program manager) for material and processing CoE at Raychem Innovation Center based in Vadodara. He has completed his BTech (Hons) in mechanical engineering from MIET and MTech in material and metallurgical engineering from Indian Institute of Technology Kanpur. He had worked as a senior researcher with TATA steel R&D Jamshedpur. Since 2014, he has been working with Raychem RPG, driving innovation and developing new products for the energy and power sector. Ishant Jain is TRIZ Level 2 certified and a green belt in Six Sigma. He has authored more than 20 technical papers in renowned national and international journals and has filed 25 patents to his credit. He has contributed to FEA analysis, electrothermal heat transfer, multibody dynamics, CFD, nonlinear structural mechanics, and static and dynamic analysis.