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Plug and play active series power quality controller with high magnetic conductivity material

A plug-and-play, power quality technology, applied in the direction of inductors, circuits, transformers, etc., can solve the problems of low magnetic flux transmission efficiency, increased cost, low magnetic flux density, etc., to improve the efficiency of magnetic flux transmission and facilitate installation Set the effect

Active Publication Date: 2019-04-09
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, most plug-and-play active series power quality controllers use special transformers as the basis of equipment. The density is very low and the flux leakage is large, and the flux transfer efficiency is extremely low, which leads to a small range of equivalent impedance adjustment of the plug-and-play active series power

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  • Plug and play active series power quality controller with high magnetic conductivity material
  • Plug and play active series power quality controller with high magnetic conductivity material
  • Plug and play active series power quality controller with high magnetic conductivity material

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[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] The plug-and-play active series power quality controller with high magnetic permeability material proposed by the present invention is aimed at the difficulties in installation, maintenance, repair and dismantling of conventional active series power quality controllers, and It is impossible to improve the design without many defects such as the continuous adjustment of the equivalent impedanc...

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Abstract

The invention discloses a plug and play active series power quality controller with a high magnetic conductivity material, and belongs to the field of power quality controllers. In the controller, a detection and control module is connected with a PWM drive and control module; the PWM drive and control module is connected with an inverter module; the inverter module is connected with a secondary winding of a special transformer module; the primary side of a special transformer is connected in series between an accessed traditional power grid or micro-grid and a load or a grid connected point,and is a part of a power grid cable or a busbar; a passive filter module is divided into two parts; and one part is connected in parallel to the side of the traditional power grid or microgrid, and the other part is connected in parallel to the side of the load or grid-connected point. Through adoption of the plug and play active series power quality controller, various power quality control functions can be realized simultaneously; plug and play can be realized; installation, maintenance, overhauling and removal are facilitated without interfering with the normal operation of the power grid;and continuously adjustable primary side equivalent impedance in a wide range is realized without increasing the volume of equipment.

Description

technical field [0001] The invention belongs to the field of power quality controllers, and more specifically relates to a plug-and-play active series power quality controller with high magnetic permeability materials. Background technique [0002] As the main energy source in modern society, electric energy has a wide range of applications in all walks of life. The quality of electric energy is related to the overall benefit of the national economy. With the increase of nonlinear loads and impact loads in large power grids, such as the increase of electrified railways, electric arc furnaces and large-scale rectification equipment, and the wide application of power electronic devices with nonlinear and diverse characteristics, the power grid in large power grids Power quality is deteriorating day by day. In recent years, in order to solve the dual pressure of environmental protection and energy shortage, distributed power generation has been greatly developed, and microgri...

Claims

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Application Information

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IPC IPC(8): H02J3/00H01F27/24H01F38/38
CPCH01F27/24H01F38/38H02J3/00
Inventor 李达义陈建春林哲侃杨凯
Owner HUAZHONG UNIV OF SCI & TECH
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