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Industrial Electronics module 2 presentation
- 1. UNIT – II CONTROLLEDRECTIFIERS POWER ELECTRONICS 1
- 2. PHASE CONTROLLED RECTIFIERS RECTIFIERS CONVERT ACTO DC CLASSIFIED AS UNCONTROLLED - DIODESARED USED CONTROLLED -THYRISTORS ARE USED 2
- 3. CLASSIFICATION OF RECTIFIERS BASED ON INPUT SUPPLY SINGLE PHASE THREE PHASE BASED ON QUADRANT OPERATION 1 QUADRANT 2 QUADRANT 4 QUADRANT BASED ON NO. OF PULSES ONE PULSE TWO PULSES THREE PULSES SIX PULSES 3
- 4. APPLICATIONS OF RECTIFIERS DC MOTOR SPEED CONTROL DC SUPPLY FOR INVERTERS ELECTROCHEMICAL PROCESSES DCTRACTION HVDCTRANSMISSION 4
- 5. RECTIFIERS SINGLE PHASEHALFWAVE RECTIFIERWITH R,RL,RLE LOAD SINGLE PHASE FULL WAVE RECTIFIERWITH R ,RL, RLE LOAD THREE PHASE HALFWAVE RECTIFIERWITH R,RL LOAD THREE PHASE FULLWAVE RECTIFIERWITH R,RL LOAD 5
- 6. SINGLE PHASE HWRWITH R LOAD 6
- 7. AVERAGE OUTPUT VOLTAGEOF SINGLE PHASE HWR WITH R LOAD 7
- 8. RMS OUTPUT VOLTAGEOF SINGLE PHASE HWR WITH R LOAD 8
- 9. PRINCIPAL TOPOLOGIES OF PHASECONTROLLED RECTIFIERS 9
- 10. SINGLE PHASE HWRWITH RL LOAD 10
- 11. WAVEFORMS OF HWRSINGLE PHASE WITH RL LOAD 11
- 12. SINGLE PHASE HWRWITH RL LOAD AND FD 12
- 13. WAVEFORMS OF SINGLEPHASE HWR WITH RL LOAD AND FD 13
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- 15. ADVANTAGES OF USINGFREEWHEELING DIODE INPUT POWER FACTOR IS IMPROVED LOAD CURRENTWAVEFORM IS IMPROVED AND LOAD PERFORMANCE IS BETTER. MAIN FUNCTIONS OF FWD IT PREVENTS THE REVERSAL OF LOAD VOLTAGE EXCEPT FOR A SMALLVOLTAGE DROP ITTRANSFERSTHE LOAD CURRENT AWAY FROMTHE MAIN RECTIFIER THEREBY ALLOWING ALL THE THYRISTORSTO REGAINTHEIR BLOCKING STATES 15
- 16. SINGLE PHASE HWRWITH RLE LOAD 16
- 17. WAVEFORMS OF SINGLEPHASE HWR WITH RLE LOAD 17
- 18. SINGLE PHASE FULLWAVE CONVERTER WITH RL LOAD AND ITS EQUIVALENT CIRCUIT 18
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- 20. FULL WAVE RECTIFIERWITH R LOAD 20
- 21. SINGLE PHASE FULLWAVE CONTROLLED BRIDGE RECTIFIER WITH R LOAD 21
- 22. OPERATION OF FWRWITH RL LOAD 22
- 23. WAVEFORMS OF FULLWAVE MID-POINT CONVERTER WITH RL LOAD 23
- 24. THREE PHASE CONTROLLEDRECTIFIERS ADVANTAGES REDUCED RIPPLE CONTENT INTHE OUTPUTVOLTAGE CAN BE USED FOR HIGH POWER APPLICATIONS TYPES THREE PULSE CONVERTERS SIX PULSE CONVERTERS TWELVE PULSE CONVERTERS (HIGHERTHE NO.OF PULSES, SMOOTHER ISTHE OUTPUTVOLTAGE) 24
- 25. THREE PHASE HALFWAVE RECTIFIER WITH R LOAD 25
- 26. WAVEFORMS OF THREEPHASE HWR WITH R LOAD 26
- 27. THREE PHASE HWRWITH RL LOAD 27
- 28. WAVEFORMS OF THREEPHASE HWR WITH RL LOAD (α=00 ) 28
- 29. WAVEFORMS OF THREEPHASE HWR WITH RL LOAD (α=450 ) 29
- 30. WAVEFORMS OF THREEPHASE HWR WITH RL LOAD (α=900 ) 30
- 31. THREE PHASE HALFWAVE CONTROLLED RECTIFIER WITH R LOAD 31
- 32. THREE- PHASE HALFWAVE CONTROLLED RECTIFIER Three- phase half- wave controlled rectifier Resistive load, α= 0º 32
- 33. Resistive load, α=30º 33
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