Power transmission line evaluation and diagnosis system and power transmission line evaluation and diagnosis method

Abstract

The invention discloses a power transmission line evaluation and diagnosis method, which includes the following steps: (A) acquiring the power data, abnormal power data and environmental data of a power transmission line on the sensing layer, including the voltage, current, electric quantity, power, frequency, power factor, phase, harmonic waves, power voltage loss, power phase failure, electricity theft, temperature, humidity, icing, wind deflection, lightning strike, power transmission tower side wind speed and rainfall, tension, stress, salt density, sag, displacement and acceleration of each node of the power transmission line; (B) transmitting the acquired data to the application layer via a network layer; (C) carrying out fluctuation analysis on the data on the application layer, carrying out evaluation and analysis on the power transmission line according to an analysis result, and remotely monitoring the site of the power transmission line via an Internet fixed port and the IP (Internet Protocol). The invention also discloses a power transmission line evaluation and diagnosis system. The invention realizes on-site monitoring and fault diagnosis on power transmission lines, and not only meets the requirement of remote information management, but also achieves an on-site equipment monitoring extension function.

Description

technical field [0001] The invention belongs to the technical field of power grid maintenance, and in particular relates to a transmission line evaluation and diagnosis system and method based on GPRS-WSN (General Packet Radio Service-Wireless Sensor Network, General Packet Radio Service-Wireless Sensor Network) technology. Background technique [0002] As of 2010, State Grid Corporation's existing substation equipment capacity is 1,886,540,000 kVA, and the transmission line is 618,837 kilometers. The investment data of China Southern Power Grid and non-power company users are not included here. In the process of rapid economic development, electricity is the first element to ensure development; however, as the economy continues to warm up, natural disasters occur frequently, affecting the safe operation of power transmission equipment and affecting the reliability of power supply. The early power transmission system was inspected by manpower, with low operating efficiency, ...

AI Technical Summary

Problems solved by technology

However, the above two technologies have few detection variables, large system errors, difficult wiring, and cannot comprehensively evaluate line faults

[0005] A transmission line fault detection device can solve the problem that the existing transmission line fault detection device cannot detect grounding, short circuit, and open circuit faults and has low reliability in use, but the device does not take into account the influence of environment

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