INDUCTION HEATING

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INDUCTION HEATING

• Done By
• Qadri Mayaleh AbdelRahman Abbass
• Supervisor
• Dr. Samer Mayaleh

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Introduction

• What is Induction Heating?

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Introduction

• Why the Induction Heating?

Energy conservation
Controlled features
Non-contact heating
Environmentally friendly
Clean heating
Increase production line speeds
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Application

• Industrial application
• Housing applications
• Medical application
• (precision induction heating)

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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.

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Background for Induction Heating

• Induction Heating
• Eddy Current Skin Effect
  Ferromagnaric Material

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Background for Induction Heating

• Resonance
• Parallel resonance
• Tank circuit

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Modeling of induction heating
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Design criteria
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Design criteria

• There are two serious problems especially
  become important when the material starts heating
  up.
• R ?
• µ ?

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The High frequency power supply Design

• High frequency power supply
• Low freq. AC supply DC source.

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Practical designHigh frequency power supply

• DC - source High frequency AC
  source
• 2MBI 50N-120 FUJI IGBT Module

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Practical design

• PIC Microcontroller (16F877A)

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Practical design

• IGBT DRIVERS
• Opto-Coupler
• IR2110

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Practical design

• L6384E

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Practical design

• BOOTSTRAP CAPACITOR

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Practical design

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

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Practical design

• Induction Heating Work coil.
• L3.2 uH
• N4.5 turns
• Inner diameter 7cm
• Induction Heating Capacitor.
• ceramic capacitor
• 0.1 uF,450 V
• To produce 3uF, 450 V.

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Problems

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

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Cost
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