The advantages, limitations and disadvantages of Z-source inverter

A Z-source converter is an unique x-shaped impedance network called Z-source impedance network that couples the converter main circuit to the power source. The converter may be of all conversion types - if it is of ac-to-dc type, the z-source converter is called z-source inverter. Since 2003 when this recently conversion concept appeared, it proved able to solve many conversion problems. In this paper it´s superiority compared to traditional solutions are shown. There are also small disadvantages and limitations revealed.