Three-column type air-gap-free iron core of magnetic-valve type controllable electric reactor

A three-column reactor technology, applied in the direction of variable inductors, inductors, electrical components, etc., can solve the problems of hindered development of large-scale development, difficulty in manufacturing iron cores, and impacts, and achieve high reliability and smooth operation. The effect of low noise and low finished product

Inactive Publication Date: 2015-02-11
QINGDAO FEITE ELECTRICAL TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing magnetic valve type controllable reactor also has two shortcomings: 1. The iron core is relatively difficult to manufac

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] A magnetic valve type controllable reactor three-column air-gap-free iron core, the iron core adopts a cooling device three-column non-gap structure, and the primary AC working winding is composed of three coils bound in parallel, respectively arranged on two sides On the column and the middle column and on the side, the wiring method is two side column windings, the filter is connected in parallel, and then connected in series with the middle column winding: plus the magnetic valve rod, bushing, cooling device, two DC excitation windings, cooling The devices are placed on the two side columns respectively, and the wiring method is anti-series, so that their power frequency induced voltage can be offset. The AC windings of the two side columns are connected in parallel to provide another channel for the induced current in the field winding, so that the induced current in the control winding and the filter becomes a voltage source, thereby minimizing the influence of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a three-column type air-gap-free iron core of a magnetic-valve type controllable electric reactor. A cooling device and three-column type air-gap-free structure is adopted by the iron core. Each primary alternating-current working winding is formed by parallel binding of three coils. The primary alternating-current working windings are respectively arranged on two side columns and a middle column. Two side-column windings are connected with a filter in parallel and then are connected with the middle-column winding in series. Magnetic valves, sleeves and cooling devices are provided; two direct-current exciting windings and the cooling devices are arranged on the two side columns respectively, and are in reverse series connection to offset line-frequency induction voltages of the both. The two side-column alternating-current windings are in parallel connection to provide another passage for induced currents in the exciting windings, so that induced currents in the windings and the filter are controlled to be voltage sources, and influences of the working windings on the exciting windings are minimized. The three-column type air-gap-free iron core has the advantages of low operation noise, high reliability and low cost.

Description

technical field [0001] The invention relates to a device in the field of electromagnetic technology, in particular to a three-column air-gap-free iron core of a magnetic valve type controllable reactor. Background technique [0002] Controllable shunt reactors are mainly divided into two types: high-impedance controllable reactors and magnetic valve controllable reactors. Their basic principles are: to use the nonlinear relationship of the magnetization curve of ferromagnetic materials to smoothly adjust the inductance and capacity of the reactor by changing the saturation of ferromagnetic materials. Only their specific implementation structures are different. The magnetic valve controllable reactor is realized by introducing a "flux valve" into the iron core, and the control performance of its control winding is also greatly improved, thus achieving large-scale Applications. However, the existing magnetic valve controllable reactor also has two disadvantages: first, the m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01F29/00H01F27/24H01F27/30H01F27/08
Inventor 张宗有王光辉金鑫
Owner QINGDAO FEITE ELECTRICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products