Analysis of Vienna rectifier

There are various converters/rectifiers in the electronics world such as Swiss rectifiers, matrix converters, unidirectional boost converters, Vienna rectifiers, etc. Out of these, the Vienna rectifier is the most favourable topology. This is due to the Vienna rectifier's benefits of having half the amount of switches, a simple construction, a high power density, and the potential to achieve unity power factor with the right control technique. In this project, a PFC (Power factor correction) controller has been deployed to control the parameters of this rectifier. First, we have compared different topologies (topology1, topology2, topology3) and choose topology1 for our project because it has 6 diodes and 1 switching switch. The PFC controller is used to control the output voltage upto a constant value. It is also used to make the input current sinusoidal. Then the Vienna rectifier without any controller is designed in MatLab and measurement of the input current, output current, output voltage, THD and power factor is measured. Then a PFC controller is added with the Vienna rectifier and the values of the same parameters are measured and compared. Finally, the single-phase Vienna rectifier hardware with a Power factor correction controller is built.