Capacitor switching control method and device based on distribution transformer, and computer equipment

Abstract

The invention relates to a capacitor switching control method and device based on a distribution transformer, and computer equipment. The method comprises the following steps: acquiring voltage data and current data of the distribution transformer, and generating a corresponding voltage signal and a corresponding current signal according to the voltage data and the current data; performing deviation calculation according to the voltage signal and the current signal to generate corresponding deviation data, and performing fuzzy judgment based on the deviation data to obtain switching control data; and obtaining a corresponding capacitor switching value according to the switching control data, and performing system capacitor switching of the distribution transformer based on the capacitor switching value. The capacitor switching value suitable for switching is determined according to different working scenes, states and the like of the temperature rise detection equipment, voltage fluctuation can be reduced, and then the influence and damage of capacitor switching on the equipment and components are reduced.

Description

technical field [0001] The present application relates to the field of electric power technology, in particular to a method, device and computer equipment for controlling switching of capacitors based on distribution transformers. Background technique [0002] With the development of power technology and the expansion of grid scale, higher requirements are put forward for the safe and reliable operation of the grid. Among them, the distribution transformer is the hardware carrier for the safe operation of the power grid, and the temperature rise test is one of the type tests that must be carried out in the process of ensuring safe and reliable operation of the distribution transformer. The temperature rise test is used to effectively and comprehensively inspect the distribution transformer. Overall performance issues, in order to eliminate distribution network security risks. [0003] Traditionally, portable transformer temperature rise detectors are often used for on-site ...

AI Technical Summary

Problems solved by technology

[0003] Traditionally, portable transformer temperature rise detectors are often used for on-site temperature rise tests. However, since portable transformer temperature rise detectors supply power to complex transformer inductive loads, and the transformer temperature rise test process involves multiple switches, it is easy to cause The fluctuation of the output voltage of the power supply will generate extremely high reverse breakdown voltage, and the power factor of the transformer as an inductive load circuit is low, which will also reduce the available active capacity of the portable temperature rise test detector

[0004] Therefore, it is necessary to perform fast voltage stabilization control on the output voltage of the portable transformer temperature rise detector, and then select switching capacitors to compensate the inductive reactive power of the circuit. At present, vacuum circuit breakers are mostly used for switching capacitors, but vacuum circuit breakers The switching of capacitors cannot be accurately controlled, and the switching process lasts for a long time, and arc reignition is prone to occur during the switching process, which will cause great harm to the safe operation of capacitors, switching equipment, and equipment.

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