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INDUCTION HEATING

INDUCTION HEATING

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INDUCTION HEATING

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  1. INDUCTION HEATING Done By: Qadri Mayaleh & AbdelRahman Abbass Supervisor: Dr. Samer Mayaleh

  2. Introduction • What is Induction Heating?

  3. Introduction • Why the Induction Heating? Energy conservation Controlled features Non-contact heating Environmentally friendly Clean heating Increase production line speeds

  4. Application Industrial application Housing applications Medical application (precision induction heating)

  5. Project goals • build and formulate a basic knowledge about induction heating . • deal with the industry requirements for simplicity ,saving the power consumption, clean heating and fast productivity. • To build a model for induction surface hardening machine. • Carry out some testing on the model.

  6. Background for Induction Heating • Induction Heating Eddy Current Skin Effect Ferromagnaric Material

  7. Background for Induction Heating Resonance Parallel resonance Tank circuit

  8. Modeling ofinduction heating

  9. Design criteria

  10. Design criteria There are two serious problems especially become important when the material starts heating up. • R ↑ • µ ↓

  11. The High frequency power supply Design • High frequency power supply • Low freq. AC supply DC source.

  12. Practical designHigh frequency power supply • DC - source High frequency AC source 2MBI 50N-120 FUJI IGBT Module

  13. Practical design • PIC Microcontroller (16F877A)

  14. Practical design • IGBT DRIVERS… • Opto-Coupler • IR2110

  15. Practical design • L6384E

  16. Practical design BOOTSTRAP CAPACITOR

  17. Practical design Matching Coil • Ferrite transformer, • Matching circuit such as an L-match network.

  18. Practical design • Induction Heating Work coil. • L=3.2 uH • N=4.5 turns • Inner diameter =7cm • Induction Heating Capacitor. • ceramic capacitor • 0.1 uF,450 V To produce 3uF, 450 V.

  19. Problems • PIC microcontroller failure. • IR FAILURE. • Opto-coupler Constrains. • Mismatching between PIC microcontroller and IGBT gate.

  20. Cost