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A two output series resonant inverter for

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A two output series resonant inverter for

  1. 1. A TWO OUTPUT SERIES RESONANT INVERTER FOR “INDUCTION HEATINGCOOKING” APPLIANCES PRESENTED BY: UDAY KUMAR.A VAMSHI KRISHNA.N ADITHYA.B
  2. 2. OBJECTIVES:    TO DESIGN A TWO OUTPUT SERIES INVERTER FOR MULTIPLE BURNER INDUCTION HEATING-COOKING APPLIANCES TO CONTROL TWO OUTPUTS(LOADS) SIMULTANEOUSLY AND INDEPENDENTLY UP TO THEIR RATED POWERS TO MAKE USE OF AVC AND ZVS TECHNOLOGIES EFFECTIVELY
  3. 3. INVERTER TOPOLOGIES:    USING SINGLE O/P INVERTER FOR TWO OR MORE BURNERS USING SEVERAL RESONANT CAPACITORS CONNECTED TO LOADS BY MEANS OF ELECTRO-MECHANICAL SWITCHES USING MULTIPLE O/P INVERTERS
  4. 4. REQUIREMENTS:    TWO O/P SERIES RESONANT INVERTER VARIABLE O/P POWER FIXED FREQUENCY CONTROL
  5. 5. INDUCTION HEATING-COOKING APPLIANCE SCHEMATIC DIAGRAM:
  6. 6. BASIC STRUCTURE OF TW0 O/P SERIES RESONANT INVERTER
  7. 7. DOUBLE FULL BRIDGE STRUCTURE FOR SELECTED AVC CONTROL
  8. 8. ASYMMETRICAL VOLTAGE CANCELLATION (AVC):     Asymmetrical Voltage Cancellation is a generalized control technique for resonant inverters This technique is mostly applied to series resonant inverters This technique improves performance and achieves better efficiency than conventional fixed frequency control strategies It considers ZERO VOLTAGE SWITCHING operation , output power and load variations
  9. 9. ZERO VOLTAGE SWITCHING(ZVS):  Zero voltage switching can be defined as conventional square wave power conversion during the switch’s on-time with “resonant” switching transitions.
  10. 10. ALGORITHM AND MATHEMATICAL PROCEDURE INVOLVED:
  11. 11. SYNTHESIS OF CONTROL CIRCUIT:
  12. 12. SYNTHESIZED TWO O/P SERIES RESONANT INVERTER
  13. 13. DERIVATION OF DIFFERENT CONFIGURATIONS
  14. 14. PERIODIC SEQUENCE OF CONFIGURATIONS:
  15. 15. TABULAR COLUMN SHOWING THE ORDER OF TRIGERRING OF VARIOUS IGBT’S
  16. 16. IMPLEMENTED TWO O/P SERIES RESONANT INVERTER
  17. 17. SPECIFICATIONS & HARDWARE USED:        IGBT TRANSISTORS WITH ANTI-PARALLEL DOIDES(intersil HGTG20N60B3D)- 6 nos Loads: R1,R2=9.5 OHMS L1,L2=60 u H C1,C2=450nF Peak Input Voltage=325V Switching Frequency=48KHz Maximum O/P Power=3.2kW
  18. 18. PRACTICAL ADVANTAGES:       Higher Utilization Ratio of Electronics Higher maximum power It is possible to share some components of the power converters Electromagnetic Noise spectrum is reduced Acoustics noises and interference are eliminated High frequency switching is possible
  19. 19. SCOPE & CONCLUSION: o o o o Use of Asymmetrical Voltage Cancellation(AVC) and Zero Voltage Switching(ZVS) enables the user to obtain a quick HEATING FUNCTION Optimum Utilization of rated power Different from traditional approaches which makes use of resonant capacitors , large number of bidirectional switches etc., Guarantees greater efficiency and durability in all industrial and domestic induction cooking appliances.
  20. 20. REFERENCES:      [1] M. K. Kazimierczuk and D. Czarkowski, Resonant Power Converters. New York: Wiley, 1995. [2] L. Hobson and D. W. Tebb, “Transistorized power supply for induction heating,” Int. J. Electron., vol. 59, pp. 533–542, May 1985. [3] F. P. Dawson and P. Jain, “A comparison of load commutated inverter system for induction heating and melting applications,” IEEE Trans.Power Electron., vol. 6, no. 4, pp. 430–441, Jul. 1991. [4] L. Hobson, D. W. Tebb, and D. Turnbull, “Dual element induction cooking unit using power MOSFETs,” Int. J. Electron., vol. 59, pp. 747–757, Jun. 1985. [5] H. W. Koertzen, J. D. van Wyk, and J. A. Ferreira, “Design of the halfbridge series resonant converter for induction cooking,” in Proc. IEEEPower Electronics Specialists Conf. (PESC), 1995, pp. 729–735.

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