Abnormal sound on-line monitor for substation equipment

Abstract

The invention discloses a transformer station equipment abnormal sound on-line monitor, which comprises a microphone sensor, a Raspberry Pi 4B and a wireless module which are arranged in a transformer station, and is characterized in that the microphone sensor collects a sound signal in the transformer station, converts the sound signal into an electric signal and sends the electric signal to the Raspberry Pi 4B; the Raspberry Pi 4B filters the electric signal and then sends the electric signal to the wireless module; and the wireless module is in remote signal connection with a mobile phone terminal. The monitor collects operation sound of substation equipment through the microphone sensor and converts a sound signal into an electric signal, the Raspberry Pi 4B receives the electric signal of the microphone sensor and performs noise reduction processing on the electric signal through a software filtering algorithm, and then the Raspberry Pi 4B sends final data to a mobile phone terminal APP of operation and maintenance personnel through the wireless module. Operation and maintenance personnel analyze and judge the operation state of the equipment by calling the operation sound of the equipment, and the on-line monitoring function of the operation state of the substation equipment is achieved.

Description

technical field [0001] The invention relates to the technical field of intelligent monitoring, in particular to an online monitor for abnormal noise of substation equipment. Background technique [0002] Since the beginning of the 21st century, due to the popularization of household appliances and various electronic devices, the annual electricity consumption of Chinese residents has increased year by year. This not only has a greater demand for power grid power generation, but also poses a major challenge to the safe and stable operation of the grid. As an important part of the safety and stability of the power grid, the inspection of substations is very important. At present, our country mainly adopts the method of remote centralized monitoring, and cooperates with the regular inspections of operators to realize the monitoring and management of substations. However, during the operation of the equipment, most of the monitoring and protection devices in the substation colle...

AI Technical Summary

Problems solved by technology

However, some defects cannot be detected through electrical parameters. These defects require on-site inspections by operating personnel. By manually monitoring the operating sound of the equipment, it is judged whether the equipment has defects such as insulation.

Due to the periodic characteristics of inspections, the defects that cannot be monitored and reported to the control center cannot be found in time, which will further expand the defects of substation equipment and eventually cause power outages

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