Design And Analysis Of Solar Powered Multilevel Inverter Fed Induction Motor Drive For Water Pumping Application (Case Study On Koka In Adama, South-East Ethiopia)

Abstract

The Ability To Use Renewable Energy Resources Has Grown Continuously Over The Past Few Decades Due To Fear Over Warnings Of Global Warming And The Depletion Of Fossil Fuels. These Fundamental Things Have Initiated Researchers To Do Scientific Research Into It. Pumping Of Water Requires Excessive Energy For Its Operation By Consuming A Massive Amount Of Diesel, Gasoline, And Electric Power Etc. However, The High Operational Cost And The Emission Of Greenhouse Gases Of Diesel Pump Set Forces Farmers To Practice Deficit Irrigation Of Crops, Considerably Reducing Their Yield And Income. Induction Motor Drives Are Most Widely Used In Both Industrial And Irrigation Sectors. Solar Water Pumping Systems Constitute A Costeffective Alternative To Irrigation Pump Sets That Run Diesel. In This Research, The Design And Analysis Of Solar Powered Multilevel Inverter Fed Induction Motor Drive For Water Pumping System Was Carried Out Using Matlab And Homer Softwares. In This Regard, The Components Of Standalone Photovoltaic Water Pumping System Such As, Photovoltaic Panel, Buck Converter, Three Phase Inverter, And Direct Current Link Capacitor Are Carefully Sized To Design System. To Achieve This, The Mathematical Modeling Of The (Photovoltaic, Induction Motor, And Converter) System Has Been Done. Also, For The Implementation Purpose The Energy Demand Of Deferable Load 112.533kwh/Day With Peak Load Of 8.44kw Has Been Involved In Homer Optimization. The Result Shows That 30kw Solar, 9kw Converter With The Best Optimum Solar Energy System With Cost Of Energy 0.236$/Kw And Net Present Cost Of $60,217 Is Required For The Selected Area. Furthermore, A Detailed Electrical Characteristic Of 15,600w Photovoltaic Array With 13 Series And 5 Parallel Configurations Was Determined On Current Versus Voltage And Power Versus Voltage Plane By Taking Manufacturer?�?S Data Sheet Of The Photovoltaic Module As Input. With The Use Of A Multi-Level Inverter, The Total Harmonic Distortion Is Improved From 7.6% To 2.22%. When Increasing The Modulation Index, The Voltage Profile Of The System Is Increased From 314v To 395.5v And The Performance Of The Machine Is Improved. Finally, A Model For Solar Powered Multilevel Inverter Fed Induction Motor Is Developed And Simulated Using Matlab/2016a And Homer Softwares.