Carrier Wave 3 leg inverter

Recently,inverters have drawn a great attention of specialists in several applications.That is multiphase motor drives, which show be advantageous to three phase motor drive in some applications for reducing power demanding on each phase and having a better reliability.however developing a generalised PWM theory for multiphase inverter can be very use ful for applications since •it helps systematically and comfortably to deduce a proper PWM method for individual inverter topology. • A generalised PWM approach can save time for solving PWM control of novel or hybrid inverter topologies.