Modeling and Simulation of Pulse-Width Modulation Inverter

Complete nonlinear Simulink Simulation model of Pulse-width modulation inverter was established, Duty rate calculation model and alterable load model used for simulation are also established. Non-continuous phenomena of current through inductance was studied. Response of inverter when load leap, establish process of output voltage during the initial moment and dynamic process of feedback and modulation of control circuit were studied . Differences of dynamic characteristic when feedback current sampled from different signal were also studied. Rules of these linear or nonlinear and dynamic phenomena were unveiled using graph.