Induction Motor Drive Using Single-Phase Cycloconverter

Converts 50 Hz AC to variable lower frequencies using a thyristor-based cycloconverter to study speed control of an induction motor.

This model simulates a single-phase AC-AC cycloconverter feeding an induction motor. The converter reduces the input supply frequency from 50 Hz to 25 Hz using phase-controlled switching of thyristors, producing a lower-frequency output suitable for low-speed motor operation.

Motor voltage, current, and speed are measured to observe the effect of frequency reduction on torque and speed. The model separates the cycloconverter stage, firing control, and motor to allow clear study of frequency conversion and drive behavior.

Main features

• Single-phase cycloconverter (50 Hz to 25 Hz conversion)
• Thyristor phase-angle control
• Induction motor load
• Measurement of voltage, current, and speed
• Suitable for study of low-frequency AC motor drives