Optimal reconfiguration and capacitor placement are used to reduce power losses and keep the voltage within its allowable interval in power distribution systems considering voltage, current, and radial condition constraints. Effective utilization of power distribution networks requires extensive studies in such areas as using capacitors, voltage regulators, network reconfiguration, and so on. Indeed, achieving accurate answers, and managing appropriate solutions for network problems requires detailed modeling of the network in the process of the above studies. Among the elements that are important for modeling in-network, research is network loads. Loads are generally being modeled such as constant power. While load nature is often widespread and different. Failure to have detailed modeling can lead to non-optimal and even wrong answers and will result in the waste of costs and investments. Since the load flow is the basis of any research in distribution networks, in this design, an effective method is presented for estimating the optimal amount of load to be shed in a distribution system based on the Dolphin algorithm. The effectiveness of the proposed Dolphin algorithm has been tested on two different distribution network systems i.e 16 and 33-bus IEEE test systems using the Newton Raphson and Forward/Backward method, to find the optimum configuration of the network with regard to power losses. Five different cases are considered as mentioned below, and the effectiveness of the proposed technique is demonstrated with Normal load, Constant Impedance load, Constant Current load, and ZIP load models, through MATLAB software simulation as shown in the video demo.
Case #1. Only Load Shedding;
Case #2. Only capacitor Placement;
Case #3. First, Load Shedding then Capacitor Placement;
Case #4. First, Capacitor Placement then Load Shedding;
Case #5. Simultaneous, Load Shedding and Capacitor Placement.

Reference Paper-1: An Optimal Load Shedding Methodology for Radial Power Distribution Systems to Improve Static Voltage Stability Margin using Gravity Search Algorithm
Author’s Name:  Aziah Khamis, H. Shareef, A. Mohamed and, Erdal Bizkevelci
Source: Jurnal Teknologi
Year: 2004
Reference Paper-2: Dolphin Echolocation Algorithm for Solving Optimal Reactive Power Dispatch Problem

Author’s Name:
K. Lenina, Dr. B. Ravindranath Reddy and, Dr. M. Surya Kalavathic
Source: International Journal of Computer

Reference Paper-3: Reconfiguration and optimal capacitor placement for losses reduction
Author’s Name: Diana P. Montoya and Juan M. Ramirez
Source: IEEE
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SIMULATION VIDEO DEMO-NEWTON RAPHSON METHOD                                                                                                              

SIMULATION VIDEO DEMO-FORWARD/BACKWARD METHOD