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Axial-Flux Permanent Magnet Generator: Build and Test

Approx. component budget: Rs. 8,000 - 14,000

Objective

Build a small generator and measure its voltage, power and efficiency at different speeds and loads.

What you will build

A coreless axial-flux generator with two rotor discs of neodymium magnets, a stator of wound coils in resin, a drive motor with speed control and a three-phase rectifier with a load bank.

Results you can expect

• Open-circuit voltage vs rpm
• Power vs load
• Efficiency
• Effect of coil turns and air gap
• Comparison with design calculation

What you will learn

Electrical machine design, magnetic fields and generation, suited to wind and micro-hydro.

Tools and notes

Winding coils, resin casting, tachometer, multimeter, Excel. Strong magnets can pinch and break fragile items, so handle with care and keep electronics and pacemakers away.

Resume points from this project

• Built and tested Axial-Flux Permanent Magnet Generator: Build and Test; objective: build a small generator and measure its voltage, power and efficiency at different speeds and loads.
• Measured and analysed open-circuit voltage vs rpm and power vs load; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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