Single Phase Step Down Cycloconverter

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The Cycloconverter has four thyristors divided into a positive and negative bank of two thyristors each. When positive current flows in the load, the output voltage is controlled by phase control of the two positive bank thyristors whilst the negative bank thyristors are kept off and vice versa when negative current flows in the load.

SKU: Single Phase Step Down Cycloconverter Category:

Description

Introduction to CycloConverter

In a Single phase CycloConverter, the output frequency is less than the supply frequency. These converters require natural commutation which is provided by AC supply.

The CycloConverter has four thyristors divided into a positive and negative bank of two thyristors each. When positive current flows in the load, the output voltage is controlled by phase control of the two positive bank thyristors whilst the negative bank thyristors are kept off and vice versa when negative current flows in the load.

During positive half cycle of supply, thyristors T1, T3 and again T1 are forward biased and produce the output. During negative half cycle of supply, thyristors T2, T4 and again T2 are forward biased and produce the output. First triggering pulse is applied to T1 and hence it starts conducting next T3 is triggered and simultaneously the order is applied.

Demonstration Video

Matlab Simulink Block Diagram for CycloConverter

Matlab Simulink Block Diagram for CycloConverter

The above Matlab explains the CycloConverter operation of F/3 mode.

Subsystem of pulse generation in CycloConverter 

Subsystem of pulse generation in CycloConverter

Output and Input waveform of CycloConverter

Output and Input waveform of CycloConverter

Additional information

Weight1.000000 kg

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