Mitigating Ferranti Effect and Enhancing Transmission Line Efficiency through Shunt Reactor Placement in Remote Grids

This paper addresses the mitigation of the Ferranti effect and the enhancement of high-voltage long transmission line performance and reliability through strategic shunt reactor placement and sizing. The study presents a comprehensive analysis of shunt reactor selection for a section of the power system featuring interconnected high-voltage long transmission lines, using real-world data from the New Valley Governorate, Egypt, collected by the Egyptian Transmission Company. Through simulations using the Electromagnetic Transient and Analysis Program (ETAP), we determine the minimal reactor requirements for satisfactory performance, considering various loading conditions and allocation proposals.The results show effective Ferranti effect mitigation, improved system reliability, reduced potential for blackouts, and enhanced transmission line efficiency. This research provides a valuable solution that reduces costs, enhances system safety and performance, and has been validated through practical field measurements. It contributes to optimizing shunt reactor placement in remote grid configurations, benefiting overall power system efficiency and resilience. A variety of simulations have been executed, providing essential insights into the optimal deployment of reactors to enhance voltage stability and system reliability across diverse operational scenarios.