Partial discharge positioning device and method for power equipment inspection unmanned aerial vehicle

Abstract

The invention discloses a partial discharge positioning device and method for a power equipment inspection unmanned aerial vehicle. The device comprises a partial discharge detection device which is installed on the unmanned aerial vehicle and comprises an antenna, an electromagnetic signal conditioning circuit, an ultrasonic sensor, an ultrasonic conditioning circuit, an analog-to-digital conversion circuit, a microprocessor, an airborne WiFi communication module and a power supply; and a ground portable computer which is used for receiving the detection result information processed by the microprocessor for storage and display and can control the partial discharge detection device. The device can quickly evaluate the insulation state of the 10 kV overhead insulated wire, solve the problem that the unmanned aerial vehicle of the 10 kV overhead insulated line cannot determine the partial discharge position information quickly in the course of inspection, improve the anti-noise abilityof the system and avoid the use of expensive ultrasonic arrays and antenna arrays. The device also has the advantages of small size and low weight and is easy to install on the unmanned aerial vehicleand has great engineering practical value.

Description

technical field [0001] The invention belongs to the technical field of insulation state detection of electric power equipment, and in particular relates to a partial discharge detection device and method for 10kV overhead insulation lines and substation inspection drones. Background technique [0002] In the main urban areas, suburbs and vast rural areas of cities in my country, overhead insulated wires and overhead conductors are widely used in 10kV medium-voltage power distribution grids. These lines run extensively alongside roads in cities or in wooded areas between farmlands. Deterioration of insulators on line poles, friction and contact between lines and tree branches, etc. lead to abnormal discharges / partial discharges gradually occurring in overhead conductors. These discharge points will reduce the insulation level of lines and eventually lead to interruption of power supply. In view of this, in the past two decades, scientific research departments and test equipm...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a partial discharge positioning device and method for power equipment inspection drones, which can quickly detect the insulation state of 10kV overhead insulated wires, and solve the problem of current 10kV overhead insulation line inspection drones. During the inspection process, it is difficult to quickly determine the partial discharge position information, improve the anti-noise ability of the system, and avoid the use of expensive ultrasonic arrays and antenna arrays. It also has the advantages of small size and light weight, which is easy to install on UAVs. Greatly improve the technical level of related fields and have great engineering practical value

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