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Presented By BINEET KUMAR NAYAK EE200118245

THE IDEAL GREEN UPS. Presented By BINEET KUMAR NAYAK EE200118245. Under the guidance of Mr. DEBASHISH JENA. WHY DO WE NEED IDEAL UPS?. UPS MEANS A POWER SUPPLY WHICH FEED TO THE DEVICES EVEN IN THE FAILURE OF MAINS SUPPLY.

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Presented By BINEET KUMAR NAYAK EE200118245

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  1. THE IDEAL GREEN UPS Presented By BINEET KUMAR NAYAKEE200118245 Under the guidance of Mr. DEBASHISH JENA

  2. WHY DO WE NEED IDEAL UPS? • UPS MEANS A POWER SUPPLY WHICH FEED TO THE DEVICES EVEN IN THE FAILURE OF MAINS SUPPLY. • COMPONENTS OF UPS ARE: RECTIFIER, BATTERY, INVERTER, FILTER, SWITCHES, AVR • NEW TECHNOLOGY UPS PROVIDES: ENERGY WASTE REDUCTION FROM 10% TO 3%. HARMONIC CURRENT REDUCTION FROM 30% TO < 3%. SUITABLE P0WER FACTOR.

  3. DOUBLE-CONVERSION UPS • RECTIFIER CHARGES THE BATTERY AND THE INVERTER SUPPLIES AC POWER TO THE LOAD. • PRESENCE OF THIRD ORDER HARMONICS RESULTS IN NONLINEARITY OR DISTORTION. • POWER FACTOR IS VERY LOW WHICH INDICATES POWER LOSSES DURING DOUBLE CONVERSION.

  4. SINGLE-CONVERSION UPS • A FOUR QUADRANT INVERTER IS USED • MAJORITY OF POWER IS TRANSFORMED TO THE LOAD VIA CHOKE. • MAIN SWITCH IS USED TO PROTECT AGAINST THE FEEDBACK CURRENT. • LESS ENERGY LOSSES DUE TO SINGLE CONVERSION OF POWER. • BUT POWER FACTOR IS NOT HIGH.

  5. DELTA-CONVERSION UPS • INVERTER 1 IS RATED AT 20% OF THE OUTPUT POWER AND INVERTER 2 IS FULLY RATED. • INVERTER 1, CALLED DELTA INVERTER IS USED TO CONTROL THE INPUT POWER FACTOR AND CHARGING OF BATTERY. • INVERTER 2 KEEPS THE VOLTAGE TO THE LOAD STABLE.

  6. DOUBLE-CONVERSION WAVEFORM

  7. SINGLE-CONVERSION WAVEFORM

  8. DELTA-CONVERSION WAVEFORM

  9. WORKING CONDITION OF DELTA UPS

  10. PERFORMANCE OF DELTA UPS

  11. COMPARISONCHART

  12. CONCLUSION • IT WAS OBSERVED THAT DELTA-CONVERSION UPS CAME CLOSE TO IDEAL UPS; BECAUSE OF IT’S MINIMUM ENERGY WASTE AND NO MAINS DISTORTION. • TRADITIONAL DOUBLE-CONVERSION UPS CAN NEVER BE ABLE TO MATCH THE EFFICIENCY OF A DELTA-CONVERSION UPS EVEN ADDING HARDWARE.

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