Power transmission line dynamic capacity-increase system based on wire inclination angle

Abstract

The invention relates to a power transmission line dynamic capacity-increase system based on a wire inclination angle. The power transmission line dynamic capacity-increase system is technically characterized by being composed of a plurality of data collection terminals and a monitoring platform, each data collection terminal comprises a sensor, a conditioning circuit of the sensor, a CT electricity supply module, a main control module and a wireless data transmission module, each sensor is connected with the corresponding signal conditioning circuit, the output end of each signal conditioning circuit is connected to the corresponding main control unit, each CT electricity supply module supplies power to the corresponding main control module, each main control module is connected with the corresponding wireless data transmission module, and the wireless data transmission modules are connected with the monitoring platform through RF antennas. The power transmission line dynamic capacity-increase system solves the problems that a primary side tension meter is hard to install and the wind speed and direction measurement is not accurate on the basis of the design of power transmission line running parameters including the inclination angle, the environment temperature, the solar radiation and the wire load and by calculating the dynamitic carrying capacity of a wire according to the wire temperature, the environment temperature, the solar radiation and the wire load, and the power transmission line dynamic capacity-increase system has the advantages of being safe in temperature measurement work, easy and convenient to install and maintain, high in reliability and safety, and the like.

Description

technical field [0001] The invention belongs to the technical field of power transmission lines, in particular to a dynamic capacity expansion system of power transmission lines based on the inclination of wires. Background technique [0002] The dynamic capacity expansion technology of transmission lines can dynamically increase the transmission capacity of existing conductors and improve the economy of power system operation without building new lines. The existing dynamic capacity expansion system of transmission lines generally uses a tension sensor to measure the wire tension, and then obtains the wire temperature according to the tension. Finally, according to the wire climate model, the maximum current carrying capacity of the wire is calculated by using wind speed and direction, ambient temperature, and solar radiation intensity. The problems of the above-mentioned dynamic capacity expansion system are: for the primary system, it is often difficult to directly instal...

AI Technical Summary

Problems solved by technology

The problems of the above-mentioned dynamic capacity expansion system are: for the primary system, it is often difficult to directly install the tension sensor on the wire; in addition, the wind speed and wind direction sometimes change rapidly in the environmental conditions, and the existing system is accurate when measuring the wind speed, especially the wind direction. The accuracy is generally low, resulting in low reliability of ampacity calculation

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