Cascaded H-Bridge inverter for photovoltaic applications
Abstract
This project proposed the theoretical development and implementation of a
Cascaded H-Bridge (CHB) inverter for the photovoltaic (PV) application. The main
objective of this project is develop CHB inverter for photovoltaic. CHB is one type of
multilevel power inverter. Multilevel power inverter, new type of inverters are suitable
in various high voltage and high power applications due to their ability to synthesize
waveforms with better harmonic spectrum, faithful output and power quality demanding
applications. There are several problem which are Photovoltaic (PV) generate the DC
voltage which can be used only for DC equipment so it needs an inverter to convert the
DC voltage from to AC voltage because most of the equipment appliances used AC
voltage .CHB multilevel inverter is based on the series connection of single phase HBridge
inverters with separate DC sources. This inverter circuit is simulated by using
PSIM software and Proteus software and constructed on the hardware PCB board. This
inverter circuit can generate 3 levels of modified square wave.CHB inverter can get the
output voltage waveform will be nearly sinusoidal in AC form.