Ansys Maxwell: Low-Frequency Electromagnetic Simulation for Electric Machines
Ansys Maxwell is an electromagnetic field solver for electric machines, transformers, wireless charging, permanent magnet latches, actuators, and other electromechanical devices. It solves static, frequency-domain and time-varying magnetic and electric fields. Maxwell also offers specialized design interfaces for electric machines and power converters. It includes 3-D/2-D magnetic transient, AC electromagnetic, magnetostatic, electrostatic, DC conduction and electric transient solvers to accurately solve for field parameters including force, torque, capacitance, inductance, resistance and impedance.
Power Transformers
Ansys provides a comprehensive transformer solution inclusive of electromagnetics (frequency dependent, nonlinear), multiphysics (force density to Mechanical or loss densities to thermal analysis) and system-level model (frequency dependent ROM or nonlinear ROM) for circuit and system performance.
Magnetic Actuators
This design methodology covers design and analysis of magnetic actuators and solenoids including forces, inductances, flux densities, closing time, eddy effects, thermal performance, as well as incorporation into a system-level simulation.
Magnetic Sensors
Ansys Magnetic Sensor simulation tools offer a complete solution integrating electromagnetic, circuit, and system-level engineering simulation in a common desktop environment.
Induction Heating
Induction Heating applications require a robust Multiphysics simulation framework to intelligently couple the electromagnetic and thermal behavior together. Ansys tools provide best-in-class tools and workflows to enable this technology.
Circuit Breakers and Switches
Circuit breakers and switches involve electric fields and coupled electromagnetics with mechanical stress, thermal and fluid flow. Ansys provides a complete solution covering all aspects of circuit breaker design.
Low Frequency Biomedical
For applications that require low frequency electromagnetics including wireless charging, bio-impedance, defibrillators, nerve stimulation, bio-sensing, MRI, implant compliance analysis when exposed to MRI fields, specific absorption rate (SAR) analysis for wearable biomedical devices , and inclusion of human body models, Ansys provides solutions across all physics and many other biomedical applications.
Increase machine efficiency and reduce time-to-market with Ansys Maxwell simulation
Customizable modeling capabilities, automatic adaptive meshing and advanced high-performance computing technology allow designers to solve complete high-performance electromechanical power systems. Automatically generate nonlinear equivalent circuits and frequency-dependent state-space models from field parameters that may be further used in system and circuit simulation to achieve the highest possible fidelity on SIL (software-in-the-loop) and HIL (hardware-in-the-loop) systems. Ansys simulation technology enables you to predict with confidence that your products will thrive in the real world.
Wireless Charging Systems – Create Better Designs Through Simulation
Inductive-based wireless charging systems provide broad applications in medical devices, consumer electronics, and electric vehicles. Ansys Maxwell’s end-to-end wireless charging system analysis enable us to achieve optimum design, discover how to address design challenges including maximizing efficiency to reduce charging time, which requires accurate electromagnetic and thermal analysis of the transmitter and receiver coils, controls and power electronics, and system design.
Model and Simulate Complex Electric Motors
A simulation platform solution for electric machines encompasses design and analysis of multiphysics and system modeling approaches to address electromagnetic, thermal, acoustic and drive performance. Ansys Maxwell allows engineers to import an entire 3D motor geometry from any CAD tool. Maxwell automatically creates the 3D circumferential slice-based model, applying nonplanar cuts as boundary conditions and corresponding regular and symmetric mesh (clone mesh) on all parts of the geometry.
This approach allows Maxwell to solve only a fraction of the original 3D space and display field results back onto the initial 3D geometry. Moreover, solving electromagnetics on newly reduced space designs, Maxwell allows coupling with thermal solvers and a structural harmonic solver where the full 3D geometry is required, imposed by the nature of different physics. The ultimate secret to this method and the benefit to the customer is the application of non-planar cutting boundaries to assign proper electromagnetic symmetry in the much-reduced design space. This gives you the most accurate and symmetric mesh of even the skew rotors and stators without increasing the computation cost.
Without a doubt, the new methodology is becoming the new best practice for motor design simulation of complex 3D geometries. This is a powerful solution that allows entry- or senior-level engineers to work on a project quickly and solve models with record speed and accuracy.
Ansys Mechanical, Fluent and Maxwell within multiphysics simulations for All-Electric Aircraft Motor Deisgn
To optimize and design of the all-electric aircraft motor, we can use Ansys Mechanical, Ansys Fluent and Ansys Maxwell within multiphysics simulations.
Ansys Maxwell assessed the electromagnetic behavior of the motor design. Results from this assessment, such as electromagnetic losses and internal forces, were then will pass to Mechanical and Fluent.
Mechanical simulations will be used by engineers to design lightweight parts that could survive the forces, rotations and vibrations of the electric airplane motor.
Fluent, on the other hand, will be used to assess how the motor performed thermally, given the air and coolant flow around it.
Using multiphysics simulation, our engineers are able to detect how a modification in the motor design could optimize the system structurally, thermally and electromagnetically.
Electromagnetic Analysis
The electromagnetic design and optimization of the motor, provided by Ansys Maxwell and Ansys optiSLang, determines the radial, tangential, and axial forces associated with the machine’s performance.
Acoustic
The acoustic representations of radiating vibrational noise are imported into Ansys Sound, enabling users to hear the electric motor at varying rpms.
Vibration
Simulation results from Ansys Maxwell and Ansys Mechanical provide key inputs to realize the goal of measuring auditory perception and assessing a vehicle’s NVH performance. The structural simulation incorporates these forces in the presence of the motor housing.
Ansys Sound
Hearing the motor enables engineers to isolate and identify sub-components of the acoustic profile and investigate the influence on human perception
Design for Wireless Charging
As requirements for wattage and power densities increase, designing for higher efficiency and optimized thermal performance becomes critical for meeting tomorrow’s consumer needs.
Developing a design for an efficient and reliable wireless charging device depends on ability to model the electromagnetic and thermal performance of the transmit and receiver coils, as well as inclusion of the controls and power electronics.
Ansys solutions incorporate magnetic, thermal, and electrical system performance and enable the design optimum wireless chargers for electric vehicles, consumer electronic and medical devices.
Electromagnetic Solution
3D and 2D quasi-static electromagnetic field simulations enable highly accurate models used to perform signal integrity analysis to study crosstalk, ground bounce, interconnect delays and ringing, and to accurately predict the performance of high-speed interconnects, filters, connectors, and PCBs.
Power Device Characterization
An embedded characterization tool for both power semiconductor and power module allows for integration of characterized power components into a drive system model and evaluation at different drive cycles.
Thermal Management
Electronics thermal management solutions leverage robust, automatic meshing to perform heat transfer and fluid flow simulation for convective and forced air cooling strategies.
Reduced-Order Models
By creating a reduced-order model (ROM), changes can be made and analyzed in real-time simulations, decreasing simulation time by orders of magnitude.
Performance Analysis of Electric Motors for EV Powertrains
Developing a battery EV powertrain is a complex systems problem. Ansys Maxwell enable us to design and development of electric motors in an EV powertrain, capturing how the different design choices — such as motor topology, winding type and cooling system — can be compared and evaluated considering their overall system impact. Ansys simulations can help engineers determine whether an interior permanent magnet (IPM), an induction magnet (IM) or a wound field synchronous magnet (WFSM) is the best motor design for an EV. Ansys also considers the trade-off between hairpin and stranded winding technologies and can compare three different methods for motor cooling. Using ANSYS Maxwell for designing and simulating machines dramatically reduces the number of hardware prototypes, saves costs, boosts reliability and shortens the time to market.
