In order to meet the current needs of power system operation and maintenance, a fiber optic online monitoring method based on optical power difference is proposed. The main station of the system is equipped with a monitoring center and a front collection execution unit. The link is automatically collected and executed by the unit, and the optical power monitoring is captured through the IP network to compare the online optical power value of the fiber optic cable with the values on both sides, achieving intelligent online dynamic monitoring of the system. The practical result shows that the system can quickly monitor and accurately locate faulty links within 20 ms. This fiber optic monitoring method has efficient promotion and application value for the operation and maintenance of intelligent substations.
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Xiong et al. (2024) studied this question.
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