Week 4- Induced Voltage

Topics Covered:

At this week's assignment, you are required to model an air-cored radial flux PM machine as shown below:

Notes:

You are required to choose the outer diameter. Just try to find a reasonable value to prevent saturation in the core material, which you will choose as well.
The axial length of the machine is 100 mm.
Assume the remanence flux density of the magnets are 1.2 T.
Assume the number of turns is 1.

The magnets can be magnetized in many different ways

In this assignment you are required to compare to different magnetizations:

For each magnetization directions:

Plot the magnetic flux vectors, and magnetic flux magnitude (rotor core can saturate, don't worry)
Plot the radial flux density (Brad) in the center of the airgap from 0 to 360 degrees in a graph, and export it (to excel or Matlab etc)
Plot the flux linkage in the coil as a function of theta.
Plot the induced voltage magnitude as a function of time (when the rotor is rotating at 1500 rpm).
Calculate the inductance of the coil.
BONUS: Implement the half-symmetry and quarter symmetry, and show you can get the same flux density distribution.

Understand the analytical model before building the FEA model.
When constructing the FEA model, go step-by-step. First try the simplest case and check if it is working as intended, if it works then make it more realistic.
Try to use a fine mesh for a higher simulation accuracy. In particular, use finer mesh in the airgap.

Please don't hesitate to ask for help. You are encouraged to work together, but I expect everyone to prepare their own assignments.
If you have a public question, please open an issue in this repo, and I will try to answer it asap.