The Simulation of Electrical Machines

What are Electrical Machines?

We use electrical machines to convert mechanical energy into electrical energy as a generator, to transform and distribute electric energy, and to convert electrical energy into mechanical as a motor. Electrical machines support our modern life in a multitude of ways and are indispensable to electrification on our way into a more sustainable future with fewer carbon emissions. Maximizing the energy efficiency of electrical machines is crucial to minimizing resource consumption.

What are the Benefits of Simulating Electrical Machines?

Electromagnetic simulation supports performance and sustainability targets by helping to create machines that use fewer materials, provide higher efficiency, and produce less noise and vibration. Engineers can optimize their designs to produce maximum efficiency in the required operating regime and to find the best trade-offs between competing design factors.

How are Electrical Machines Simulated?

Electrical machines are complex devices that by definition require multiphysics simulation capabilities. Electromagnetic forces translate into torque in a motor, and conversely, the rotation of a generator generates electromagnetic power. Analyzing the conversion between the two requires a motion analysis, capturing the changing behavior of the machine over time. Ripples in the torque curve can give rise to noise and vibration in the machine. The large currents inside electrical machines can also cause significant heating. The precise evaluation of the coupling of electrical to mechanical forces requires comprehensive material modeling options. Besides the traditional electric losses in realistically modeled conductors, modeling options also include magnetization and demagnetization effects in service. We are able to consider iron losses such as eddy current, hysteresis, and excess/rotational losses explicitly during the simulation. The losses can be used in a thermal analysis of the machine. An electrical machine is always part of a larger system, with electrical circuits and controllers on one side and transmission mechanisms and gearboxes on the other. The simulation model can be connected as a functional mock-up unit to a representation of the entire system, including controllers, for a system simulation of the behavior of the machine in real-world scenarios.

Electrical machine KPIs that can be calculated with simulation include:

  • Efficiency
  • Inductances
  • Saturation curves
  • Short-circuit analysis
  • Open-circuit analysis
  • Inrush current/load test
  • Switch-on transients
  • Losses – copper, eddy-current, hysteresis
  • Dynamic forces on coils
  • Noise and Vibration

Electrical Machine Simulation Applications

Efficiency Maps

Energy efficiency is absolutely crucial for reducing operating costs, increasing vehicle range and meeting sustainability goals. Simulation can optimize electrical machines to increase efficiency. Efficiency typically varies according to speed and torque – automated simulation can quickly calculate and map efficiency over the entire operating regime without the time and cost of physical testing.

motor effiency map > Dassault Systèmes

Start Your Journey

Explore the technological advancements, innovative methodologies, and evolving industry demands that are reshaping the world of Electrical Machine Simulation. Stay a step ahead with SIMULIA. Discover now.

Also Discover

Low-Frequency Electromagnetic Simulation
Electrostatic, Magnetostatic and Low Frequency Electromagnetic Field Simulation
Electromagnetic Compatibility Simulation
Virtually Test Compliance with EMC Standards
Signal & Power Integrity Simulation
Integrate Simulation in Electronics Design Automation (EDA) Workflows
Antenna Design & Simulation
SIMULIA Electromagnetic Simulation for Efficient Antenna Design
Microwave/RF Filters & Components Simulation
Efficient Simulation of Highly Resonant Structures
Bioelectromagnetics Simulation
Analyze the Interaction of Electromagnetic Fields with the Human Body
Particle Dynamics Simulation
Simulation of Particles in Electromagnetic Fields
Optical Device Simulation
Photonic Circuit, Graphene, Metamaterial and  Photonic Crystal Simulation

Learn What SIMULIA Can Do for You

Speak with a SIMULIA expert to learn how our solutions enable seamless collaboration and sustainable innovation at organizations of every size.

Get Started

Courses and classes are available for students, academia, professionals and companies. Find the right SIMULIA training for you. 

Get Help

Find information on software & hardware certification, software downloads, user documentation, support contact and services offering