Application Examples - Claw-Pole Alternators

Application examples with Model Files available
Simulating a claw-pole alternator in an automobile electrical system environment
Since a claw-pole alternator can be found under the hood of almost any car, it is one of the most optimized of magnetic machines, balancing manufacturing costs against efficiency. Simulating its dynamic electromagnetic characteristics is challenging, but careful analysis of the results can lead to further improvements. Using Infolytica's electromagnetic simulation software with an enhanced GUI, post-processing features and multi-core computational capabilities, Transient 3D with Motion analysis of this machine in the environment of an automobile electrical system, including a three-phase diode bridge and a resistive load is carried out. Presented below are some demonstrations of MagNet's multi-core computational and analysis capabilities.

Open Report (Model 0127)

Request MagNet model files - Model Number 0127

Application Examples - Claw-Pole Alternators
Other application examples (report only)
Current distribution in a claw-pole alternator
Creating a VHDL-AMS model of a claw-pole alternator
Current distribution in a Claw-pole Alternator
The device is a claw-pole automobile alternator with a three-phase output winding on the stator. A field coil around the rotor core is used to induce flux in the output windings as the rotor spins.

The full model is shown here, however for simulation purposes, two symmetry planes are matched with an even periodic boundary condition. The MagNet 3D analysis model consists of a 60 degree section comprising one rotor pole pitch pair.

Open Report (Model 0070)

Creating a VHDL-AMS model of a claw-pole alternator

The design of Switched Reluctance Motors (SRM) is a complex optimisation problem involving a large number of geometrical and electrical parameters. In practice, this can be a challenging task involving a large number of iterations and a long design cycle.

The example presented here demonstrates how OptiNet searches for the improved design of a 8/6 SRM to maximise the torque generated while conforming to manufacturing and operating constraints.

Open Report (Model 0131)