Systematic Design of Multilevel Cascaded H-Bridge Inverter for Dynamic Loads

Abstract

In recent years, renewable energy sources have been drastically increased over any other energy sources. In among those renewable energy sources, solar energy has gained more attention and importance over other types of renewable energies. On a smaller scale, whether by PV cell panels or passive solar home architecture, we can leverage the sun's rays to fuel the entire building. Passive solar homes are built to obtain heating through concrete, bricks, tiles, and other heat retaining materials in the sun through south-facing windows. Some solar-powered homes produce more than enough electricity, enabling the homeowner to return to the grid to sell surplus power. Batteries are also an economically attractive way to store excess solar energy so that it can be used at night. Scientists are hard at work on new advances that blend form and function, such as solar skylights and roof shingles. So, in order to convert solar energy to electrical energy, inverters are employed using photovoltaic cells. According to the necessity of power consumption and to increase the efficiency multilevel inverters are made into applicability. This paper focuses on the vital role played by photovoltaic cells to reduce the switching stress on cascaded type H-Bridge configured multilevel inverter. As a positive side effect of this, one can achieve reduced harmonic distortion, increased efficiency in output power, reduced power loss, ease of implementation. As well as by decreasing the number of switches employed, the system become more efficient.