Principle of operation of Cycloconverter

In this PPT, the working principle of cycloconverter and its type is explained.

1. C Y C L O C O N V ETERS

2. CONTENTS  INTRODUCTION  TYPES  PRINCIPLE  SINGLE PHASE CYCLOCONVETER  THREE PHASE CYCLOCONVERTER

3. CYCLOCONVERTER  A Device which converts input power at one frequency to output power at a different frequency with one- stage conversion.  AC to AC conversion  Developed in 1930 , GERMANY  Uses SCR (THYRISTORS)  Force commutation

4. T Y P E S  Step up cycloconverter ( Fo>Fs )  Step down cycloconverter( Fo<Fs )  Single phase to single phase Mid-point cycloconverter Bridge type cycloconverter  Three phase cycloconverter

5. SINGLE PHASE CYCLOCONVETER  Step up Cycloconverter:- LOW Frequency to HIGH Frequency  Step down Cycloconverter:- HIGH Frequency to LOW Frequency

6. STEP-UP CYCLONVERTER  LOW TO HIGH FREQUENCY CONVERTER MID-POINT CYCLOCONVERTER BRIDGE TYPE CYCLOCONVERTER

7. MID-POINT CYCLONVERTER

8. BRIDGE TYPE CYCLONVERTER

9. STEP-DOWN CYCLONVERTER  HIGH TO LOW FREQUENCY CONVERTER MID POINT CYCLOCONVERTER BRIDGE TYPE CYCLOCONVERTER

10. MID-POINT CYCLONVERTER

11. BRIDGE TYPE CYCLONVERTER

12. THREE PHASE CYCLOCONVERTER  THREE PHASE TO SINGLE PHASE  THREE PHASE TO THREE PHASE

13. THREE PHASE TO SINGLE PHASE

14. THREE PHASE TO THREE PHASE

15. ADVANTAGES  Direct conversion  Compact system  Variable speed range  High quality wave  Low speed applications DIS-ADVANTAGES  Large number of thyristors  Complex circuitry  Output frequency is limited FEATURES

16. A P P L I C A T I O NS  SPEED CONTROL DRIVES  INDUCTION HEATING  VARIABLE FREQUENCY INPUT AND GETTING CONSTANT OUTPUT

17. THANK YOU !!