Projects / Electrical / Electrical project 67

Self-Excited Induction Generator for Small Wind or Hydro

Approx. component budget: Rs. 5,000 - 9,000

Objective

Understand how an ordinary motor can generate power and find the capacitor needed for stable voltage.

What you will build

A squirrel-cage induction motor run as a generator with a capacitor bank for self-excitation, driven by a motor and loaded with resistive loads.

Results you can expect

• Voltage build-up vs capacitance
• Voltage and frequency regulation vs load
• Minimum capacitance for excitation
• And output power vs speed

What you will learn

Generator action in induction machines, self-excitation and voltage regulation.

Tools and notes

1-3 hp induction motor, capacitor bank, driving motor with VFD, loads, meters. Discharge capacitors after every test and use insulated terminals.

Resume points from this project

• Built and tested Self-Excited Induction Generator for Small Wind or Hydro; objective: understand how an ordinary motor can generate power and find the capacitor needed for stable voltage.
• Measured and analysed voltage build-up vs capacitance and voltage and frequency regulation 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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