Z-source Inverter for Standalone Application

A Z source inverter (ZSI) is a one type of converter in power electronic which is used to control the speed of AC motors, in renewable energy systems. Unlike normal voltage inverters, it has a fixed input voltage and frequency, where a ZSI can be adjust the input voltage to get a constant output voltage. It can happen by use of a impedance network, it allows a step up or stepdown operation on the input voltage. The ZSI has many advantages over normal voltage inverters like increased efficiency, improved reliability, and good flexibility in controlling the motor. A part from this, the ZSI can operate in both continuous and discontinuous modes, to make it suitable for a many applications. However, Due to complex impedance network it is challenging to design and control a motor and care should taken about its components and control strategy. A part from these challenges, the ZSI has the potential to change the field of power electronics and renewable energy systems.