Multi-magnetic-circuit phase shifting transformer

A technology of phase-shifting transformers and multi-magnetic circuits, applied in transformer/inductor cores, transformer/inductor components, transformer/inductor coils/windings/connections, etc., which can solve harmonic interference, troublesome operation, and DC bias and other problems, to achieve the effect of suppressing DC bias and harmonic interference, simple design and adjustment, and improving the impact

Pending Publication Date: 2017-12-22
王奉瑾
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the iron core design of the existing transformer (single iron core for each phase) is prone to magnetic flux leakage, DC bias, and harmonic interference, which affects the efficiency and stability of the power grid; and the current phase adjustment technology in the existing design is complex and difficult to operate Trouble, urgent need to find a simple and convenient multi-phase solution

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-magnetic-circuit phase shifting transformer
  • Multi-magnetic-circuit phase shifting transformer
  • Multi-magnetic-circuit phase shifting transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The patent solution is further described in conjunction with the accompanying drawings as follows:

[0014] See attached figure 1 and 2 , a multi-magnetic circuit phase-shifting transformer, including an input part 1, a transformer part 2, a rectifier part 3 and an output part 4. The transformer part includes an upper jaw D1 and a lower jaw D2, and several intermediate irons arranged between them Cores, specifically including A1, A2, B1, B2, C1, C2, these intermediate iron cores are arranged in groups of two, including the first group of iron cores (A1, A2) corresponding to phase A, the second group of iron cores corresponding to phase B One group of iron cores (B1, B2) and the third group of iron cores (C1, C2) corresponding to phase C, each group is equipped with an input winding and at least one output winding, the input winding and output winding are respectively in the shape of "8" "Winning in the direction of the font, side yoke iron cores O1 and O2 are also arr...

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 present invention proposes a multi-magnetic circuit phase-shifting transformer, which includes an input part, a transformer part, a rectifier part and an output part. The middle iron cores are arranged in groups of two. Each group is equipped with an input winding and at least one output winding. A side yoke iron core is also arranged beside the core, and the output winding includes an upper tap, a lower tap and at least one middle tap, and the current phase shift is realized by the wiring mode of each tap of the output winding. The magnetic circuit is formed between the iron cores of each phase and the adjacent iron cores in the present invention, which minimizes magnetic flux leakage and can suppress DC bias and harmonic interference in the transformer circuit. At the same time, the wiring mode of each tap of the output winding realizes The adjustment of the current phase realizes the simple design and adjustment of the current phase.

Description

technical field [0001] The invention belongs to the technical field of power equipment, and in particular relates to a multi-magnetic circuit phase-shifting transformer. Background technique [0002] As the power of switching power supply equipment increases, its impact on the overall grid and electrical equipment in the grid is also increasing, causing serious harmonic pollution in the grid. For high-power occasions of tens or even hundreds of kilowatts, the existing multi-pulse rectification technology is generally used to suppress or offset certain harmonics of specific orders in the input current. In addition, the iron core design of the existing transformer (single iron core for each phase) is prone to magnetic flux leakage, DC bias, and harmonic interference, which affects the efficiency and stability of the power grid; and the current phase adjustment technology in the existing design is complex and difficult to operate Trouble, it is urgent to find a simple and conv...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/34H01F27/29H01F27/24H01F27/30H01F27/28H01F27/40
CPCH01F27/34H01F27/24H01F27/28H01F27/29H01F27/306H01F27/346H01F27/40
Inventor 王奉瑾戴雪青
Owner 王奉瑾
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap