Learning Forum

[Waqas]

Hello, 

I am trying to calculate the self-inductance of an aluminum metal sheet in a wireless power transfer system, specifically between a transmitter and a receiver. However, applying any excitation to the sheet is not possible, which makes the calculation quite challenging. Can anyone please help me with this? Thank you!

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[MirandaH]

Hi, the inductance calculation must have a loop that could carry currents in Maxwell.

[Waqas]

That's exactly why I have posted this here. Do you have any suggestions for the problem?

Best,
Waqas

[MirandaH]

You will need to create a close loop geometry for that object, cutting a hole in the middle of the geometry, section a cross section and assign it under a winding.

[Waqas]

Thanks MirandaH. 

Can you please explain the solution a little more? Do I have to assign it to TX or RX winding?

Best,
~W

[MirandaH]

no, create a new winding just for the metal sheet

[Waqas]

Thank You Miranda.

[Waqas]

I have follow-up questions:

a. Do I delete the original metal sheet, assign the material properties to the closed loop geometry, and treat that closed loop body as the metal sheet?
b. Assign slin depth or inside mesh to that closed loop?
c. The winding currents to the transmitter and receiver are set to 1A. Should I also set 1A to the winding of the closed loop body?

Best
~W