Transient magnetic field interference testing system based on intelligent substation

Abstract

The invention provides a transient magnetic field interference testing system based on an intelligent substation. The transient magnetic field interference testing system comprises a magnetic field measuring unit, a signal processing unit, a data acquisition unit, a central control unit and a power supply module, wherein the magnetic field intensity is measured through the magnetic field measuringunit, a measured signal is input into the signal processing unit for amplification, filtering and analog-to-digital conversion processing, the processed digital signal is input into the data acquisition unit to acquire and buffer data, and then data storage and display are achieved by the central control unit; and the transient magnetic field interference testing system is capable of achieving high-speed acquisition, real-time waveform display and high-capacity data storage functions of data. The transient magnetic field interference testing system based on the intelligent substation, which is provided by the invention, plays a very important role in guiding and propelling the construction of the intelligent substation.

Description

technical field [0001] The invention belongs to the technical field of electric power detection, in particular to a transient magnetic field interference test system based on an intelligent substation. Background technique [0002] With the increase of power consumption, the improvement of transmission voltage level and the complexity of equipment in the substation, the electromagnetic environment in the substation is more serious than before. The process of lightning strike, power switch operation and power system failure will generate strong transient electromagnetic disturbance. , they can induce high instantaneous peak voltage on metal objects or leads through conduction or radiation and affect the normal operation of power equipment, making secondary equipment and relay protection devices installed close to primary equipment bear increasingly strong electromagnetic interference. The acquisition card of the electronic transformer is very susceptible to the influence of ...

AI Technical Summary

Problems solved by technology

At present, the research on electromagnetic interference at home and abroad is mostly focused on the magnetic measurement of traditional substations, and there are few studies on transient magnetic interference in substations. The magnetic field measurement system is not convenient and accurate enough to meet the requirements of actual use.

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