Power quality control system based on active filtering technology

A filter technology and power quality technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, etc., can solve problems such as power factor reduction in power grids, grid data monitoring cannot be displayed and adjusted, and solve power quality problems Effect

Active Publication Date: 2020-06-16
NANCAL ENERGY SAVING TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of power factor reduction and harmonic increase caused by many equipment on the power grid, and how to obtain the waveform adjustment value by analyzing the staff, and adjust the waveform line through the waveform adjustment value. , to solve the problem that the existing power grid data monitoring cannot be adjusted according to the staff, and a power quality management system based on active filtering technology is proposed; the invention detects reactive power and harmonics in real time and can dynamically perform reactive power compensation and Harmonic filtering to solve power quality problems; by adjusting the line of the waveform corresponding to the parameter data, it is convenient for the staff to have a better view

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  • Power quality control system based on active filtering technology
  • Power quality control system based on active filtering technology
  • Power quality control system based on active filtering technology

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Embodiment Construction

[0039] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] see Figure 1-3 As shown, the power quality management system based on active filtering technology includes active filters; the active filter is composed of active power filter modules and intelligent control modules, and the intelligent control modules include interface boards, man-machine interfaces module, DSP core board, IO module, PWM control module and host monitoring module; the two ports of the interface board are connected to the power grid through the external current transformer CT1 and external current tr...

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Abstract

The invention discloses a power quality control system based on an active filtering technology, and is to solve the problems that many devices in a power grid cause power quality problems of grid power factor reduction and harmonic enlargement and the like, and how to carry out analysis on working personnel to obtain a waveform adjustment value, and by adjusting lines of the waveform through the waveform adjustment value, the problem that existing power grid data monitoring cannot be displayed and adjusted according to the staffs is solved. The system comprises an active filter. The active power filter is composed of an active power filter module and an intelligent control module; reactive power and harmonic waves are detected in real time, and reactive power compensation and harmonic wavefiltering can be dynamically carried out, so that the electric energy quality problem is solved; and by adjusting the lines of the waveform corresponding to the parameter data, the staffs can conveniently check the waveform better.

Description

technical field [0001] The invention relates to the technical field of power quality, in particular to a power quality management system based on active filter technology. Background technique [0002] Under the current background of energy saving and consumption reduction, people pay more and more attention to power quality. In this form, the power quality management market has maintained rapid growth in recent years. With the popularization and application of industrial power-saving products and the vigorous development of smart grid , facing a very broad market space; [0003] With the advancement of technology and the reduction of cost, the use of power electronic equipment is becoming more and more extensive. At the same time, many devices on the grid will cause power quality problems such as lower power factor of the grid and increased harmonics. The active power filter (APF) is the first choice to solve power quality problems because it can detect reactive power and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/01
CPCH02J3/01Y02E40/40
Inventor 祖军赵岚于胜涛
Owner NANCAL ENERGY SAVING TECH
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