Distribution network working power supply based on self-energy-gaining coil technology

Abstract

The invention relates to a distribution network working power supply, in particular to the distribution network working power supply based on a self-energy-gaining coil technology. The distribution network working power supply based on the self-energy-gaining coil technology comprises an inductive iron core (1), and is characterized in that: a leakage winding (2) and an energy gaining winding (3)are wound on the inductive iron core (1); a leakage module (4) is also connected to the leakage winding (2); and an energy gaining device is also connected to the energy gaining winding (3). Therefore, the distribution network working power supply has the advantages of 1, solving the problems of high-amplitude voltage and waveform distortion produced by high current even impact current caused by a short-circuit failure, and 2, obtaining relatively higher starting current when current is low.

Description

technical field [0001] The invention relates to a working power supply for a distribution network, in particular to a working power supply for a distribution network based on a self-energy-capturing coil technology. Background technique [0002] In the completed power distribution network, most of the interfaces for installing smart devices are not considered, the most prominent of which is that there is no working power interface for smart devices, which makes mature smart technologies unable to be applied in power distribution networks. [0003] Therefore, the acquisition of working power has become a key issue in the automation construction of distribution network in smart grid. At present, the commonly used methods for obtaining working power of the distribution network include self-energy harvesting coils, high-voltage capacitor voltage divider energy harvesting, laser energy harvesting, and solar power supply. There is no electrical isolation between high voltage and ...

AI Technical Summary

Problems solved by technology

[0004] The present invention is mainly to solve the problems existing in the prior art in that the high-voltage capacitor voltage division method has no electrical isolation between the high voltage and the intelligent equipment, and there is a potential safety hazard; the laser energy harvesting is relatively high in cost, and its application in the power distribution network is limited. The limitation of solar power supply is too much dependent on weather conditions, power supply stability is not enough and other technical problems; provides a solution to the impact current caused by high current or even short circuit fault, resulting in a large voltage and waveform distortion Power supply for distribution network based on self-energy coil technology

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