Enhancement Of Voltage Profile And Minimization Of Power Loss Through Optimal Sizing And Placement Of Distributed Generation Using Genetic Algorithm (A Case Study: Gelan Distribution Network)

Abstract

Urbanization And The Ongoing Growth In Power Consumption Necessitate The Use Of A Reliable And High-Quality Power Supply System. As Demand Rises, The Flow Of Electricity Intensifies, Resulting In Higher Currents Traversing Through Distribution Lines. Consequently, Leading To Increased Power Losses And Voltage Drops Along The Distribution Network. The Study Was Dedicated To Addressing Challenges Within The Gelan Distribution Network, Specifically Targeting Voltage Profile Issues And Power Losses On The Selected Feeder. The Main Objective Of The Study Was To Decrease Power Loss And Improve The Voltage Profile Using Genetic Algorithm (GA) Through The Optimal Sizing And Placement Of A Distributed Generation (DG). To Achieve Thisobjective, At Frist Load Flow Analysis Was Conducted Via Backward - Forward Sweep (BFS) Within The Existing Distribution Network To Analyze The Voltage Profile And Power Loss. Then GA Was Used To Optimally Size And Place The DG By Formulating A Problem With Multiple Objective Functions With Active Power Loss, Reactive Power Loss, And Voltage Deviation. The Proposed System Was Then Executed Using MATLAB 2021a To Assess The Effect Of Optimal Placement And Sizing Of The DG On Voltage Profile And Power Losses For The Selected Feeder. The Programmingresults Was Tested By Considering Two Scenarios (For Existing System And Different DG Cases), With The Second Scenario Including Four Different Cases (Case I - 1 DG, Case II - 2 DG, Case III - 3 DG, & Case IV - 4 DG). From Load Flow Analysis Of Existing System, The Total Active Power Loss And Total Reactive Power Loss Was 380.3629 KW And 227.5547 KVAR Respectively While The Minimum Voltage Deviation Was 0.9301 P.U. From The Results Derived Through The MATLAB Programming In Scenario II, The Findings Across The Different Cases Show That The Integration Of 3 DG Units (Case III) Provides The Most Substantial Benefits. In Case III, The Total Active Power Loss Was Decreased To 171.3684 Kw After The Integration Of 3 DG Units, A 57.2556% Decrease. The Total Reactive Power Loss Also Decreased 102.2332 Kvar, A 74.7501% Reduction. The Minimum Voltage Value Improved To 0.96259 P.U. Furthermore, A Cost Analysis Was Conducted For The Proposed System, Indicating A Payback Period Of 3.41 Years. Consequently, From The Attained Result, It Is Likely To Say The Proposed System Was Effective To Decrease Power Loss And Enhance Voltage Profile Within Gelan Distribution Network.