Intelligent transformer and design method of low-power-consumption working mode of intelligent transformer

Abstract

The invention discloses an intelligent mutual inductor and a design method of a low-power-consumption working mode of the intelligent mutual inductor, and the method mainly comprises the following steps: 1, carrying out the low-power-consumption design of an energy taking mode of a PT collection module; 2, performing low-power-consumption design on the energy taking mode of the CT acquisition module; 3, considering the power consumption of a subsequent circuit of the module and ensuring the requirement of sampling precision, and selecting models of main components MCU and radio frequency chipsin the subsequent circuit; and 4, carrying out low-power-consumption design on software while normal work is guaranteed, so as to achieve the effect of reducing the power consumption of the whole machine as much as possible, wherein in order to achieve the effect, the design on the software is mainly reflected in four aspects of mode switching, data auxiliary updating, function control and low-power-consumption keeping. According to the invention, the collected amplitudes and phases of the voltage and current output by the two coils are uploaded to the main station for comparison to judge whether there is abnormal power utilization or not, so that the problem of power stealing can be solved fundamentally. Meanwhile, low-power-consumption design is carried out on the intelligent mutual inductor from two aspects of software and hardware, the influence of the acquisition module on the mutual inductor is reduced, and the performance of the mutual inductor is improved.

Description

technical field [0001] The invention relates to the field of distribution network automation systems, and relates to an intelligent transformer and a design method for its low-power consumption mode. Background technique [0002] In recent years, illegal acts of stealing electricity have become more and more serious, causing huge economic losses to the country and seriously affecting economic construction and social development. And with the development of science and technology, the current methods of stealing electricity are developing in the direction of concealment and high technology. In addition to the original electricity stealing methods such as winding around the meter and opening the measurement seal of the electric energy meter privately, many new methods of stealing electricity with high technical content have emerged, such as adding a remote control device to short-circuit the current transformer (Current Transformer, CT), two The outgoing line of the secondary...

AI Technical Summary

Problems solved by technology

These devices have high requirements on system power consumption, because excessive system power consumption will cause many problems

For a battery-powered system, if the power consumption is too large and the running time of the device is too short, there is no practical application value in reality

For equipment powered by mains power, if the power consumption is too large and the heat generated is too much, the heat dissipation of the equipment is also a big problem, which will affect the operation of the equipment

These traditional transformers are not designed for low power consumption, resulting in a relatively large impact of the acquisition module on the transformer, affecting the performance of the transformer

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