Modelling and simulation of voltage source inverter (VSI) for use in active filter application using sinusoidal pulse width modulation (SPWM) technique / Azril Hisham Abu Hassan

A power converters incorporates an array of power switching devices that helps to convert and control electrical energy transformations under the guidance of control electronics. The general classification of converters on functional basic includes ; AC - DC converters ( rectifier) , DC - DC converter (Chopper) , DC - AC converter (inverter) and AC - AC converter at the same frequency ( AC controller ) or different frequency ( Cyclo - converter ) . Often a practical power electronic system may combine one or more forms of circuit to achieve the final conversion process. This report is concerned on the modeling and simulation to facilitate the study on the behavior, switching strategy, and control of the sinusoidal pulse width modulation voltage source inverter (SPWM-VSI) for active filter applications. The simulation of the circuit where carefully done with two different software simulation package in the form of PSPICE and MA TLAB/SIMULINK. This is to ascertain the accuracy of the simulations in the absence of a complete experimental verification. Using the same topology the operation of a controlled rectifier and inverter were presented illustrating the behaviour of an active filter with its bidirectional power flow capabilities. The result obtained using both the simulation tools are as presented.