Unlock instant, AI-driven research and patent intelligence for your innovation.

Three-phase electric reactor

一种三相电抗器、电抗器的技术，应用在电路、变压器/电感器磁芯、变压器等方向，能够解决额外涡流损耗、导体损耗影响很大等问题，达到降低涡流损耗、满足大功率的使用要求的效果

Inactive Publication Date: 2015-06-17
DELTA ELECTRONICS (SHANGHAI) CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic core plane where the magnetic flux 20 enters and exits is composed of multiple insulated sheet cores laminated, and no large eddy currents will be formed in this plane; Very large eddy currents (such as figure 2 30 and 40 in ), causing serious additional eddy current losses, and these diffuse fluxes have a great influence on the losses of nearby conductors (windings, mechanical components, etc.)

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
  • Three-phase electric reactor
  • Three-phase electric reactor
  • Three-phase electric reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a three-phase reactor, and the schematic diagram of the side view structure of the reactor is as follows image 3 shown. The reactor is a three-phase three-leg structure, including an upper yoke 101 and a lower yoke 105, a winding 102, three core legs 103 and an air gap 104 in the core legs.

[0047] Wherein the upper yoke 101 and the lower yoke 105 are made of high magnetic permeability materials with a relative magnetic permeability greater than 2000, usually made of planar sheet materials, such as amorphous iron-based alloy laminations, nanocrystalline Made of iron-based alloy lamination material, or made of permalloy or silicon steel lamination material.

[0048] The stem 103 is made of a block alloy powder core with a high saturation magnetic flux density, and is made of a low-permeability material with a relatively low relative permeability. The relative permeability of the stem 103 is, for example, tens to One hundred or two hundred, us...

Embodiment 2

[0060] This embodiment provides another three-phase reactor, and the schematic diagram of the side view structure of the reactor is as follows Figure 8 shown. The reactor is a three-phase five-column structure, including an upper yoke 201 and a lower yoke 205, a winding 202, three first core columns 203, and an air gap 204 in the core columns. The difference from the first embodiment is that this embodiment The reactor of the example further includes two second stems 206, the two second stems 206 are respectively connected to the upper yoke 201 and the lower yoke 205, and the three first stems 203 are connected to the two second stems 206 are arranged in a staggered manner, and the material of the second stem 206 is made of a material with a relative magnetic permeability greater than 2000. In a preferred manner, the material of the second stem 206 is the same as that of the upper yoke 201 and the lower yoke The material of portion 205 is the same. In addition, the composit...

Embodiment 3

[0066] This embodiment provides another three-phase reactor, and the schematic diagram of the side view structure of the reactor is as follows Figure 9 shown. The reactor is a three-phase five-leg structure, including an upper yoke 301 and a lower yoke 305, a winding 302, three first core legs 303 and an air gap 304 in the first core legs 303, two second core legs 306 .Different from Embodiment 2, in the reactor of this embodiment, three first stems 303 are arranged between two second stems 306, and the material of the second stems 306 has a relative magnetic permeability greater than 2000 In a preferred manner, the material of the second stem 306 is the same as that of the upper yoke 301 and the lower yoke 305 . In addition to the difference between the setting position of the second stem 306 and the second embodiment, the composition of other parts of the reactor structure in this embodiment, the thickness of the air gap, and the setting principle of the distance between t...

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 application discloses a three-phase reactor, including: an upper yoke and a lower yoke, the upper yoke and the lower yoke containing a first material; and at least three first core columns, the first core columns containing a second material, and the both ends of each of the first core columns being connected with the upper yoke and the lower yoke, respectively, wherein, the relative permeability of the first material is greater than that of the second material, and at least one air gap is positioned in each of the first core columns. In the three-phase reactor proposed by the present disclosure, the yokes are made of a material different from that of the core columns, and air gaps are positioned in the core columns, so that the eddy current losses may be reduced significantly and the requirement for the use of high power may be satisfied.

Description

technical field [0001] The invention relates to a three-phase reactor. Background technique [0002] In the current application fields of high-power inverters, UPS and new energy, the switching frequency of up to several thousand Hz increases the loss of traditional silicon steel sheet reactors sharply and cannot adapt to these high-frequency applications. Therefore, this type of high-power high-frequency reactor usually uses a block gold powder core or a magnetic core (iron core) made of amorphous material. In recent years, the super silicon steel with a silicon content of 6.5% produced by JFE in Japan using a vapor phase infiltration deposition process is also good. choose. [0003] Iron cores made of amorphous materials are usually laminated by strips, and super silicon steel is also laminated in sheet form. Like copper foil and aluminum foil, they are continuous plane or curved surface conductors. The AC magnetic flux with the same or close to the normal direction of t...

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): H01F27/24H01F3/14H01F27/30H01F1/147
CPCH01F3/14H01F27/346H01F30/12H01F2003/106
Inventor 褚江黃智胡居明
Owner DELTA ELECTRONICS (SHANGHAI) CO LTD