Design and Implementation of Battery Charging and Load Management System Using Synchronous Non-Inverting Buck-Boost DC-DC Converter

Hi Engineers.. long time no blogging,.. :D

hmm.. sorry for taking long time to met you guys, you know how busy is the student in last semester. finally alhamdulillah i've graduated from ITS as an electrical engineer :D in last month..

ok, here i want to share about my final project which get A alhamdulillah... you still remember the title of my final project, right?? hahahha.. ok let me reminds you, the title is Design and Implementation of Battery Charging and Load Management System Using Synchronous Non-Inverting Buck-Boost DC-DC Converter... fyuhhh.. is it too long, right??

i called it VIRUS CONVERTER, hahaha.. if ranchodas in 3 idiot film has VIRUS INVERTER, which help virus's grandson born via vaccum cleaner which power-up by battery using virus inverter as converter.. now i have these one.. the differ is it used as converter from DC to DC to regulate voltage and current.

ok, let me explain you in a main point about my final project which based on power electronic especially about renewable energy.. as we know that renewable energy resources for the example from phototovoltaic or wind turbine which generates electricity can be interconnected to power grid, or stored to battery. here, my final project focused on charging battery in stand-alone power generation.

Battery and load management system in stand-alone power generation from renewable energy is needed to regulate charging and discharging of battery. This final project concern on simulation and implementation of synchronous non-inverting buck-boost (SNIBB) using four H-bridge switches to regulate current and voltage of multi-stage lead-acid batteries charging. 

When the battery charging voltage below 2.4V/cell, battery charging current kept constant using a constant-current mode (CC). Then, voltage kept constant on constant-voltage mode (CV) until battery charging current is 5%, so switch mode to float-charge with voltage set-point at 2.25V/cell. Management of charging-discharging battery and load parameter using two switches with an electrical power source, battery capacity, and load. 

Experimental using simulation and implementation using microcontroller with PI-Controller. From the experimental result, CV and CC mode of SNIBB circuit is able to maintain charging voltage and current corresponding with set-point. Maximum CV implementation efficiency is 80%, while CC efficiency is 71%. When charging current set-point of CC mode is raised, then the charging time is faster. Experimental result of battery and load management system able to arrange charging and discharging process battery to load.

And here is my final project paper for this virus converter, i hope it will helps you and also the worlds :D

Tuesday, April 16, 2013
Posted by:Maula Nurul Khakam ON: Tuesday, April 16, 2013

About Maula Nurul Khakam

Maula Nurul Khakam1989 | I'm an Electrical Engineering in ITS Surabaya Indonesia | maniac in power electronic and automation | i've dream to combine green energy resources with education and food >> Trust Me, I'm an EngineerRead More »