Wireless monitoring energy management system for lightning arrester

Abstract

The invention belongs to a wireless monitoring energy management system for a lightning arrester. The wireless monitoring energy management system is improved on the basis of structures of existing lightning arrester monitoring systems according to a control strategy. A monitoring control platform sends enquiry and control commands to a station level switchboard, an intelligent electronic device and a lightning arrester monitoring terminal level by level at the fixed time, the startup, the operation and the shutdown of the station level switchboard and the intelligent electronic device are controlled through control of power supplies of the station level switchboard and the intelligent electronic device, the startup, data collection, data transmission and the shutdown of the lightning arrester monitoring terminal can be controlled through control of a power supply of the lightning arrester monitoring terminal, and the work state information of the station level switchboard, the work state information of the intelligent electronic device and the work state information of the lightning arrester monitoring terminal are monitored. By the aid of the wireless monitoring energy management system, the wireless monitoring of the lightning arrester inside a transformer substation can be achieved, service years of the monitoring system are prolonged to the maximum extent through optimization of energy control strategies, the replacement cycle of devices is prolonged, and the construction difficulty and the engineering cost are reduced.

Description

Technical field [0001] The invention belongs to a lightning arrester wireless monitoring energy management system, and improves the structure of the original arrester monitoring system according to a control strategy. Background technique [0002] In the power system, lightning disasters cause serious damage to substation equipment. Lightning arrester is an important over-voltage protection electrical appliance used to leak lightning over-voltage and internal over-voltage caused by operation. At present, the domestic power system mainly uses metal oxide arresters. [0003] The metal oxide arrester is affected by the impulse voltage, and the oxide valve disc will also age under the action of the impulse voltage energy, making its nonlinear characteristics worse. The aging and nonlinear deterioration of metal oxide arresters are mainly manifested in the significant increase in the high-order harmonic components of the resistive current under the normal operating voltage of the syst...

AI Technical Summary

Problems solved by technology

If only a single wireless method is used to solve the communication problem of the system, and the power supply of the monitoring system still uses active power supply, it will not be able to fundamentally solve the problem of difficult engineering, complicated wiring and high cost when installing the monitoring system due to the wide distribution of lightning arresters. question

Some people proposed to use solar energy and other renewable resources to supply power, but did not propose a detailed control strategy for the joint power supply of solar energy and batteries in the substation. The status information monitoring of the arrester monitoring system in the substation does not need to be carried out in real time. The battery power supply system continues to charge / discharge without control, which will reduce the service life of the battery, reduce the working life of the entire system, and shorten the maintenance and replacement cycle

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