Post on 24-May-2018
transcript
Done By:Qadri Mayaleh & AbdelRahman Abbass
Supervisor:Dr. Samer Mayaleh
IntroductionWhat is Induction Heating?
Introduction
Why the Induction Heating?
Controlled features
Energy conservation
Non-contact heating
Environmentally friendly Clean heating
Increase production line speeds
Application
Industrial application
Housing applications
Medical application (precision induction heating)
Project goalsbuild 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.
Background for Induction HeatingInduction HeatingEddy Current Skin Effect Ferromagnaric
Material
Background for Induction Heating
ResonanceParallel resonance Tank circuit
Modeling of induction heating
Design criteria
Design criteria There are two serious problems especially become important
when the material starts heating up.
R ↑
µ ↓
The High frequency power supply Design
High frequency power supply• Low freq. AC supply DC source.
Practical designHigh frequency power supplyDC - source High frequency AC source
2MBI 50N-120 FUJI IGBT Module
Practical designPIC Microcontroller (16F877A)
Practical design
IGBT DRIVERS…Opto-Coupler
IR2110
Practical designL6384E
Practical designBOOTSTRAP CAPACITOR
Practical design Matching Coil
Ferrite transformer, Matching circuit such as an L-match
network.
Practical design
Induction Heating Work coil.
L=3.2 uHN=4.5 turnsInner diameter =7cm
Induction Heating Capacitor.
ceramic capacitor0.1 uF,450 VTo produce 3uF, 450 V.
Problems
PIC microcontroller failure.IR FAILURE.Opto-coupler Constrains.Mismatching between PIC
microcontroller and IGBT gate.
Cost