Intelligent micro-grid electric energy quality distributed-type control device

Abstract

The present invention relates to an intelligent micro-grid electric energy quality distributed-type control device. The device comprises a controller, a zero-crossing switching switch, a reactor, a wave-filtering power capacitor, a signal terminal post and an installation box body. The signal terminal post comprises a bus signal terminal post and a micro-grid signal terminal post, the bus signal terminal post is used for electrically connecting with an acquisition point A of a photovoltaic power generation system, the micro-grid signal terminal post is used for electrically connecting with anacquisition point B of a bus transformer, and the bus signal terminal post and the micro-grid signal terminal post are both electrically connected with the signal input end of the controller. The control end of the zero-crossing switching switch is electrically connected with the controller, the output end of the zero-crossing switching switch is electrically connected with the input end of the reactor, and the output end of the reactor is electrically connected with the wave-filtering power capacitor. According to the device, dual-channel sampling is realized, the device provides hardware support for dual-channel sampling accurate calculation, the power factor of a power grid is improved, and the loss of power supply transformer(s) and transmission line(s) is reduced.

Description

technical field [0001] The invention relates to the technical field of power distribution devices, in particular to a distributed management and control device for power quality in a smart microgrid. Background technique [0002] The new energy industry is an important basis for measuring the level of high-tech development of a country or region, and it is also the strategic commanding height of a new round of international competition. The developed countries and regions in the world regard the development of new energy as an important measure to follow the trend of science and technology and promote the adjustment of industrial structure. [0003] With the development of new energy, more and more enterprises have also introduced new energy to generate electricity and connect to the grid. Due to changes in the current direction of these micro-grid grid-connected enterprises, there has been a problem that the existing reactive power compensation devices cannot operate normall...

AI Technical Summary

Problems solved by technology

[0003] With the development of new energy, more and more enterprises have also introduced new energy to generate electricity and connect to the grid. Due to changes in the current direction of these micro-grid grid-connected enterprises, there has been a problem that the existing reactive power compensation devices cannot operate normally, resulting in power quality degradation

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