After several decades of technological evolution, power electronics applications have become extremely important for electric/hybrid propulsion systems, smart grids, renewable energy saving, and bulk storage, besides the typical in industrial automation high-efficiency systems. In all these applications, a conversion system with high efficiency density is required without sacrificing system's q...

Level shifters are interfacing circuits, generally for Low voltage to high voltage translation Level shifters are used and high to low translation inverters are sufficient, but it needs an additional circuitry. In this paper we have presented a novel high performance Dynamic Voltage Level Shifter. It is a unique circuit will perform level-up shift, level-down shift, and Blocking. The type of sh...

Dynamic Voltage Restorer is a power electronic device that can protect sensitive loads from various disturbances in the power supply. This paper presents the study & analysis of DVR and power quality problems, voltage sag & swells with its application at Low Voltage and Medium Voltage level. DVR is always connected in series with the distribution feeder. The basic principle of a DVR is simple, ...

This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices. In this structure, the output voltage amplitude is not limited to dc voltage source and it can be increased by quasi-Z-source. Besides, due to nature of Z-source families, this new structure is reliable and higher efficiency. Also, in this...