Analysis and simulation of power inverter with load variation for induction heating applications

All induction heating applied systems are developed using electromagnetic induction. Electromagnetic induction refers to the phenomenon by which electric current is generated in a closed circuit by the fluctuation of current in another circuit placed next to it. The basic principle of induction heating is that AC current flowing through a primarily circuit induces a current in the load (the secondary circuit) located near it and heating the load. The intent of this presentation is to present the details of half-bridge power inverter via a comprehensive analysis with operation equations of the circuit and their solving using specific software. An alternative to the use of circuit-oriented simulators for study of these circuits operating is to describe the circuit and the controller by means of differential and algebraic equations. We must develop the equations for all possible states in which the circuit may operate. These algebraic/differential equations can be solved by using of software packages specifically designed for this purpose that provide a choice of integration routines, graphical output, and so on.