| PhD Seminar

Name of the Speaker: Ms. Nihalini Baline (EE20D026)
Guide: Dr. Swarup K S
Online meeting link: https://meet.google.com/wxa-dyjp-fkk
Date/Time: 7th April 2025 (Monday), 3 PM
Title: Voltage and Reactive Power Management in Transmission Networks

Abstract :

The seminar talk II presents the improvement in the voltage profiles in transmission networks using power control equipment like On-Load Tap Changers (OLTC), Variable Shunt Reactors (VSR), etc. Quasi-Dynamic Simulation (QDS) for the study of Load Profile is examined in this work. A new modeling approach has been introduced to localize and optimize the reactive power flows in the transmission networks for Reactive Power Management and Voltage Profile Improvement (VPI). The effect of Reactive Power in transmission networks is analyzed and demonstrated for a practical system with low voltage profile and burden on the generator in supplying dynamic reactive power. Notable variations in the load demand are observed during seasonal variations resulting in voltage violations. Both VSR and OLTC were considered for voltage profile improvement and management of reactive power flows in the network.

An In-depth analysis on the applicability and usage of VSR and OLTC to manage the reactive power requirement and voltage profile improvement of a realistic southern Indian grid substation network at 400 kV. Improvements in voltage profiles brought about by using the combined operation of VSR-OLTC is described which is the important contribution in this research. The simulation study is demonstrated for a various IEEE Bus systems and later validated for a 2023 realistic grid data using Dig Silent power factory software. The results indicate the effectiveness of the combined operation of VSR-OLT for both RPM and VPI.