JMAG Users Conference in Germany


We will be hosting the JMAG Users Conference in Germany.
The event will take place over 2 days: day one will be technical day, and day two will have user presentations.
Training focused on the functions will also be provided.
Professor Tim Miller from Glasgow University will be making the keynote presentation, and will be sharing some valuable experiences.
This will be an excellent opportunity to collect information on technical trends and application cases of electromagnetic field analysis. We look forward to seeing you there!


Organizer POWERSYS
Dates May 27th, 2015 08:30-17:30
May 28th, 2015 08:30-16:30
Venue Steigenberger Airport Hotel
Frankfurt am Main, 60549 Germany
TEL:+49 69 6975-0  


May 27th, 2015 JMAG Technical Day

08:30 – 08:55 Welcome coffee and registration
09:00 – 12:15 Opening remarks and schedule announcement
1/ 2 sessions in parallel:
1.1/ Modelling techniques for Motor Analysis:
Lear more about the JMAG solutions for Motor Design by going through JMAG-Express Quickmode,
Powermode until JMAG Designer. Express is the pre-design tool of JMAG for motor design;
its Powermode includes a very easy-to-use GUI and the powerfull FEM solver of JMAG-Designer.
1.2 – One-to-One meetings
12:15 – 13:30 Networking lunch
13:30 – 16:45 Interactive presentations:
2.1/ External linking with JMAG: JMAG/Abaqus coupled simulation
2.2/ Advanced calculation: JMAG explorer, parametric analysis, scripts, Linux cluster, MPP & HPC.
2.3/ Motor Drive System: Direct coupling & using RT table
15:30 – 15:45 Coffee Break
17:00 – 18:00 3/ JMAG V14.1:
Presentation of the new features and demos.
19:00 – 21:30 Diner offered by POWERSYS

May 28th, 2015 JMAG Users Conference

8:30 Welcome coffee and registration
9:00 Opening remarks
Vincent CAPRON,
9:15 JMAG: Recent developments and roadmap
Dr. Takashi Yamada,
JSOL Corporation
10:15 The electric machine designer in the 21st century
Professor Tim Miller
Will the electric machine designer of the future be a computer buff, dabbling in sophisticated apps on a smartphone? Or will he or she have strong and lithe thumbs from winding and re-winding weird prototypes in the test laboratory? Where will the new generation come from, and how will the species evolve from the slide-rule-pushing ancestors in tweed suits and brown lab-coats who gave us 90% of the electric machine technology we have today? How will they be helped by electronics, by materials science, by the internet? What will happen to the prototyping shop, if it hasnft already happened? Can software really expand their capabilities, or will it limit the scope of their imagination? What challenges will they face, in addition to the changes in the supply of electrical energy, the much-touted revolution-to-come in automotive transport, the regulators and rule-makers, the scarcity of precious materials, and the escalating cost of software licences? Do the old and wise really have the best view of the future, or have they seen it all before? Is this keynote presentation really about electric machines at all? Yes!
10:40 Design and parametric modelling of a synchronous reluctance machine
Mr Marcel Lehr,
Research assistant,
Technical University Darmstadt
The presentation deals with the design of a synchronous reluctance machine for the use as an industrial drive with a power of 45 kW. For the design, a parametric Visual-Basic-Script (VBS) was implemented to create different models of the machine. Not only were several electromagnetic studies carried out with the help of this script but also mechanical and thermal studies. Due to the parametric modelling, the influence of the rotor parameters on different machine parameters (torque, losses, efficiency etc.) could be determined.
11:15 Optimization using JMAG
Sephan Paul,
System development / Electrical drives & Battery systems (VT-S1),
Power and torque density are very important issues in design of electric motors for application in electric and hybrid electric vehicles. Permanent excited synchronous machines (PSM) seem to meet this requirement perfectly. Additionally, it uses a compact and robust design without slip rings. However, the permanent excitation has also some disadvantages as extensive no load losses at high speeds or high costs. During the design of an e-motor many boundary conditions have to be taken into account. Despite that the development has to focus on the strong requirements set by the costumer. For that purpose IAV uses JMAG in combination with its own optimization-tool. Using this toolchain IAV is able to optimize the electro-magnetic behavior and the mechanical strength of an e-motor within one optimization-process. This is very important to be able to maximize the flux utilization of the permanent magnets built into the rotor and to ensure the rotor can withstand the required maximum rotor-speed.
11:40 sunlight© pump – a small solar powered water pump developed using the JMAG toolchain
Prof. Dr. Andrea Vezzini,
Head of BFH – CSEM Energy Storage Research Center – Biel – Switzerland
After using JMAG Designer and the optimization tool to design the motor and to calculate the motors efficiency map. This map is compared on a motor test bench.
Afterwards we used the JMAG RT Model together with the NI Electric Motor Simulation Toolkit to optimize the controller software. The system is set up as a HIL system, where the actual controller is connected to the FlexRIO FPGA Module and the inverter and motor are part of the simulated system.
This allows us to test the system in non-conventional working points and especially in failure points.
Development toolchain and results so far will be presented.
12:15 Network lunch
14:15 Design of interior permanent magnet synchronous motor
with JMAG-Designer and JMAG-RT

Kassem Roumani,
Bergische Universitat Wuppertal
Recently, interior permanent magnet synchronous machines have been discussed as a possible candidate for hybrid and electrical vehicles. These type of synchronous machines offers high efficiency and high torque by utilizing both magnetic torque and reluctance torque. The reluctance torque caused by the saliency of the machine is used to improve the efficiency and to exploit the full power of the traction drive. Compared to the control strategy where the d-axis current is controlled to zero in the constant torque range, the maximum torque per ampere control strategy allows to produce a larger torque and to reduce the copper losses at the same output power condition.
14:40 Computation of Cogging torque with a non-cylindrical airgap
(Customer case from Powersys USA)

Eduardo Montalvo-Ortiz,
JMAG Projects and Applications Engineer,
This presentation covers some several special cases that have been worked on for customers at the Powersys USA office in Southfield, MI. The first topic is an analysis for the computation of cogging torque for a slot-less PM motor with a non-cylindrical airgap when using a patch mesh. The second topic is handling loss information when creating a material in order to account for low stacking factors in the steel parts. Finally, a case is shown where stator inductance and resistance are computed for a motor model utilizing the results from an FQ study and compared to results obtained from JMAGfs built in inductance calculation tools.
15:15 Closing remarks – End of the users conference

* Please note the conference details are subject to change due to unforeseen circumstances.
Visit the POWERSYS homepage for the latest information.  

Event Report

The JMAG Users Conference in Germany was held as a place to share knowledge and experience of electromagnetic field simulation.
Day 1 is Technical Day. Three workshops and one-on-one technical consultations were offered as training with the objective of acquiring JMAG skills.
Day 2 was presentation day. Technical partners and of course JMAG users gave presentations on topics such as their honest experiences discussing advantages and difficulties of using JMAG to advance their business, as well as the presentation of coupled analysis use cases.
JSOL introduced the new features in JMAG-Designer Ver.14.1, which is to be released winter this year.
The next conference will be held in Spring 2016. We hope that you all attend again, and those that couldn’t make it this time will join next year!


TEL: +33 (0)4 42 61 02 29