Research on a new co-transmission monitoring method of both power and signal in harsh construction environments
With the steady progress of underground cable installation projects,the monitoring of power cable pro-jects has become increasingly important.However,there lacks a unified solution for the power supply and com-munication aspects of the monitoring system,making it difficult to ensure the stable long-term operation of the monitoring system.The optical fiber coherent transmission monitoring technology provides a solution for under-ground cable monitoring.This paper proposes a standardized configuration for monitoring equipment in power ca-ble projects using optical fiber coherent transmission technology.It optimizes the matching between power sensors of various types,such as voltage,power consumption,and optoelectronic coupling equivalent circuit models,un-der low-power consumption scenarios in power cable projects.Experimental results show that with the proposed optical fiber coherent transmission technology,under the same energy transmission conditions,the transmission efficiency is increased by about 12％to 20％.In addition,there is also an improvement in signal transmission stability.
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