Simulation of Electric Machines with Ansys Maxwell
Learn how to perform field simulation with Ansys Maxwell for precise assessment of the typical parameters of electric machines. This training is offered as a 2-day course.
Duration
2 days
Prerequisites
Knowledge of electrical machines, Basic knowledge of Ansys Maxwell
Software used
Ansys Maxwell
- Connections of the windings and fault cases
- Linking of electric machines with power electronic circuits
- HPC/TDM solver technology for rapid assessment of results
- Consideration of special machine properties and operating states
Description
Whether motors or generators, electric machines have become an increasingly important part of our daily lives. In the development of electric machines, a wide range of customer specifications must be fulfilled as optimally as possible. Today, this development process is no longer conceivable without simulation support. Ansys Maxwell and Motor-CAD provide the industry standard and the platform to carry out the necessary analyses reliably and efficiently. Technical simulations help you to make accurate predictions about possible design variants of electric machines in the concept phase or, in the event a problem occurs during operation, to use simulation technology to specifically address the diagnosis and to make suggestions for improvement.
During the training you are coached to give reliable statements about the function of an electric machine based on FE simulations. This includes tasks from determining central parameters, such as torque characteristics and losses, to detailed analyses, such as the demagnetization of permanent magnets. The most common machine types, such as induction machines and synchronous machines, will be covered. As a developer or drive systems technician, you will acquire the necessary knowledge for the numerical simulation of electric machines.
Detailed agenda for this 2-day training
Day 1
01 From the analytical preliminary design to the finished FE model
- Short introduction to Ansys Maxwell
- Typical tasks and simulation workflows
- First success: Creation and simulation of an FE model using RMxprt
- Workshop: generate a Maxwell model as an export from RMxprt
02 Quickly review engine designs and make decisions
- Analytical calculation of the electromagnetic circuit with Ansys RMxprt
- Implementation of model variations
- Connection to power electronics
- Workshop: Analytical calculation of a PSM (Permanent Magnet Excited Synchronous Machine)
03 Model structure of an electric machine in Ansys Maxwell
- Geometry import, CAD connection
- Material properties including demagnetization and temperature dependence
- Modeling of losses in windings and in the magnetic circuit
- Meshing strategies & boundary conditions
- Consideration of cage winding of an induction machine
- Workshop: Design of a PSM
04 Solver Setup und Post Processing
- Time step control and result quality
- Evaluation options
- Representation of typical result variables
- Output of results as dq components
- Meshing options for axial flux machines and linear drives
- Workshop: Meshing of an axial flux machine
Day 2
05 Speeding up the simulation
- Clever use of HPC (High Performance Computing)
- Time Decomposition Method (TDM)
- Fast model variations with HPC
- Harmonic solver: calculation of an initial state for transient simulation
- Exercise: Settings for using HPC/TDM. Comparison of computing times
06 Special operating conditions and errors
- Starting behavior of electric machines
- Eccentricity and resulting forces on the rotor
- Incident short circuit and demagnetization
- Star and delta connection in Circuit Editor
- Exercise: Demagnetization due to short circuit
07 Aspects of spatial modelling
- Slanted motor: 3D vs. 2.5D multi-slice
- Eddy currents in permanent magnets
- Sheet metal modelling: lamination, anisotropy
- Workshop: Influence of the bevel on the operating point of an electric machine
- Workshop: Determining the eddy current losses in the permanent magnets of a PSM
08 Derivation of behavioral models
- Behavioral models for electric machines: ECE (Equivalent Circuit Extraction)
- ECE model vs. co-simulation
- Validation of the ECE model
- Calculation of torque-rpm diagrams using the Machine Design Toolkit (ACT-Extension) and Motor-CAD
- Workshop: Generating and validating an ECE model
Your Trainers
Peter Dück
Lester Pena Gomez
Placement in the CADFEM Learning Pathway
Participant data
Additional information
Commentary
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Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT).
The training includes intermediate and final exercises to practice the elements covered in the training. The trainer will present the resolution of these exercises and will check the good understanding of each module of the course with the help of MCQ. A training certificate will attest to the validation of the knowledge assessment for each module and for the overall training.