Travelling waves prospective in high voltages, propagation characteristics, faults location, and mitigation: A review

The reliability and efficiency of power transmission systems are essential for the functionality of modern electric grids. High-voltage systems, such as 220kV double circuit transmission lines, are integral in transmitting electricity over long distances, but they are prone to disturbances that generate transient phenomena known as traveling waves. These waves, resulting from sudden changes in voltage or current along the line, can significantly affect power stability, quality, and infrastructure. This review explores the effects of traveling waves in double-circuit transmission lines, with a focus on their propagation, interactions with system components, and impacts on system stability. The review findings are from recent studies, simulations, and practical examples, and offer insights into potential mitigation strategies for optimizing transmission line design and protective schemes.