The term 'Low Frequency Electromagnetics' is often related to power and energy. Low frequencies are mainly used when it comes to transmit, distribute and to convert electrical energy to mechanical energy and back.
Fig.X: Current Density J in a bus bar
We know that the successful development of low frequency devices like relays, actuators, converters, sensors and machines is quite complex and needs a lot of engineering knowledge and experience. In nearly all tasks nonlinearities has to be taken into account. And this applies on the device itself and to the multiphysical affected system around. And in many cases it needs to look at near field EMC and thermal aspects as well.
The ANSYS EM tools covers literally everything of that. If you need to consider a high number of designs the analytical tools like RMxprt and PExprt for Magnetic Component and Rotational Machine modelling provides large part libraries and easy to use template interfaces giving fast and accurate results.
Fig.X: Select your machine from 14 different types (left side) and create a model of your design approach within minutes
Do you want to know the magnetic Flux Density B before the first prototype of the machine is build? Determine the torque of the machine and current densities in its windings before the real world measurements has been done! Our Finite Element Method (FEM) tools allow you a look at fields, induced voltages and losses for every single design idea. The FEM enables the engineer to use a variety of material properties. And modelling even highly detailed and arbitrary shaped parts means no limitation to the user.
Fig.X: FEM meshed geometry of a transformer core
Successful simulation for LF starts with selecting the most apropiate solver regarding the problem. Our main LF tool comes by default with a Static, a Quasi-Static and Transient Solver which covers every problem.
Different types of losses and eddy current effects: the software provides everything what is needed to evaluate the LF device.
Fig.X: Magnetic Flux Density B on the surfaces of the symmetry plane in a motor
Low Frequency Devices can become quite complex in regard to their geometry. How much time do you spend on modelling and post-processing?
Our tools are using a powerful ACIS-Kernel. Geometry Import from CAD, Part Healing and automatic de-featuring is a matter of course. Excitations via Windings and coils can easily modelled and the powerful post-processing allows the user a look at fields and quantities like currents, voltages and losses.
On top of that Mechanical results like forces and torques are also included as well as Matrix data for Inductance L, Capacitance C and Resistance R. And all of that is always just a few clicks away.
How is my device acting in its final environment? We can answer that question!
In the real world LF devices are embedded into a system of digital and analogue electronics, different sources, electrical, mechanical and thermal loads and control modules. ANSYS Simplorer is the only product worldwide which combines all those different domains in one system using the 'Hybrid Simulator Approach'. Linking your Finite Element model dynamically into a ANSYS Simplorer System based analysis will give you the full confidence your device is working accurately and reliable. Fig.X: Solenoid Actuator embedded into a system with a electrical source (left hand side) and a mechanical load (right hand side). The FEM model is directly linked into that multi-domain-circuit.
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