INDIAN JOURNAL OF SCIENCE AND TECHNOLOGY RESEARCH ARTICLE OPEN ACCESS Received: 13-06-2020 Accepted: 19-07-2020 Published: 31-07-2020 Editor: Dr. Natarajan Gajendran Citation: Shakil M, Rashid Z, Hus- sain GA, Umer F (2020) Power Flow Analysis and Optimization in Ring Distribution Network of Bahawalpur using Newton Raphson Method. Indian Journal of Science and Technology 13(27): 2720-2732. https ://doi.org/10.17485/IJST/v13i27.916 ∗ Corresponding author. Zeeshan Rashid Department of Electrical Engineering, The Islamia University of Bahawalpur, 63100, Pakistan. Tel.: +92-62-925-5576 zeeshan.rashid@iub.edu.pk Funding: None Competing Interests: None Copyright: © 2020 Shakil, Rashid, Hussain, Umer. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee) Power Flow Analysis and Optimization in Ring Distribution Network of Bahawalpur using Newton Raphson Method Muhammad Shakil 1 , Zeeshan Rashid 1∗ , Ghulam Amjad Hussain 2 , Farhana Umer 1 1 Department of Electrical Engineering, The Islamia University of Bahawalpur, 63100, Pakistan. Tel.: +92-62-925-5576 2 Department of Electrical Engineering, College of Arts and Sciences, American University of Kuwait, Safat, 10002, Kuwait Abstract Background: The primary motive of an electrical power system is to generate and supply electric power efficiently and reliably to the consumer-end. Transmission losses, system instability and increasing cost in proportion to demand are the main challenges faced in this process. Power flow analysis is required to robustly predict the active / reactive power within the buses, voltage magnitude / phase angles at each bus, cost of transmission and losses well before the practical installation of the power network. Methods/Statistical Analysis: In this paper, we employ power flow analysis using Newton Raphson method and Fast Decoupled method to minimize cost of the electricity and finding optimum active and reactive powers without affecting the voltage regulation. The power flow algorithms are applied for solving the afore- mentioned load flow problem for ring distribution network of Bahawalpur. We carried out the modeling by obtaining realistic data for constructing bus admittance matrix and specifications of generation units and loads which are connected at the buses. Findings: As a result, optimum flow of power along with the voltage values among different regions of Bahawalpur is obtained. The results from both the algorithms successfully converge and there is an absolute match to validate the accuracy. Novelty: These novel results are of paramount importance since the proposed architecture of Bahawalpur is ring distribution network to replace the existing radial network for improved performance. Furthermore, this research will pave the way for power system planning of Bahawalpur region where all the electrical parameters are known beforehand to design the components according to the requirement. Keywords: Electric power system; voltage magnitude; phase angle; power flow analysis; Newton Raphson method; ring distribution network; active power; reactive power https://www.indjst.org/ 2720