CN204029556U

CN204029556U - High-power photovoltaic system testing power supply fission transformer

Info

Publication number: CN204029556U
Application number: CN201420496306.6U
Authority: CN
Inventors: 吴智富
Original assignee: SHENZHEN INDUCTOR TECHNOLOGIES Co Ltd
Current assignee: Anhui Yingdakot Magnetoelectric Technology Co ltd
Priority date: 2014-08-29
Filing date: 2014-08-29
Publication date: 2014-12-17
Anticipated expiration: 2024-08-29

Abstract

The utility model relates to a kind of high-power photovoltaic system testing power supply fission transformer, and for meeting needed for test macro, it increases leakage inductance.Concrete technical scheme is: high-power photovoltaic system testing power supply fission transformer comprises upper yoke, lower yoke, iron core column and line bag, iron core column is provided with between upper yoke and lower yoke, line looping is had mercy in iron core column, line bag and upper yoke, the fixing respectively by bonding way of lower yoke.Upper and lower iron yoke is fixedly connected with line bag by bonding way, leakage inductance than common transformer under the prerequisite not increasing the cost of raw material is much larger, the inrush current when impact substantially reducing transformer carries is the effective especially low cost solution of one to needing the transformer of large leakage inductance.

Description

High-power photovoltaic system testing power supply fission transformer

Technical field

The utility model relates to transformer, especially a kind of high-power photovoltaic system testing power supply fission transformer.

Background technology

Along with greatly developing of new forms of energy, in photovoltaic generation, the current transformer design and manufaction manufacturer of one of core component gets more and more, and the laboratory evaluation of current transformer is an important means of test current transformer quality, current transformer laboratory evaluation has been come by photovoltaic converter test platform, and wherein test platform transformer is one of device of this test platform key.Traditional transformer is all that leakage inductance is the smaller the better, and at simulating grid voltage jump (during from zero to 50% voltage, maximum voltage), traditional transformer inrush current is excessive, affects the normal work of test macro, and industry user is in the urgent need to a kind of transformer increasing leakage inductance.

Utility model content

In order to overcome the deficiencies in the prior art, the technical problems to be solved in the utility model is the leakage inductance increasing transformer.

For solving the problem, the technical scheme that the utility model adopts is as follows: high-power photovoltaic system testing power supply fission transformer, comprise upper yoke, lower yoke, iron core column and line bag, iron core column is provided with between upper yoke and lower yoke, line looping is had mercy in iron core column, line bag and upper yoke, the fixing respectively by bonding way of lower yoke.

Preferably: line bag is bonding with upper yoke, lower yoke respectively by epoxy resin.

Preferably: upper yoke, lower yoke and iron core column are cuboid.

Compared to existing technology, the beneficial effects of the utility model are: compared to traditional transformer device structure, the utility model decreases cost of labor in process of production.Upper and lower iron yoke is fixedly connected with line bag by bonding way, leakage inductance than common transformer under the prerequisite not increasing the cost of raw material is much larger, the inrush current when impact substantially reducing transformer carries is the effective especially low cost solution of one to needing the transformer of large leakage inductance.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the schematic diagram of upper and lower iron yoke of the present utility model and iron core column;

Fig. 3 is the schematic diagram of line bag.

In figure, mark is described as follows:

1, upper yoke; 2, lower yoke; 3, iron core column; 4, line bag.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As Figure 1-3, high-power photovoltaic system testing power supply fission transformer, comprise upper yoke 1, lower yoke 2, iron core column 3 and line bag 4, iron core column 3 is provided with between upper yoke 1 and lower yoke 2, line bag 4 twines haves mercy in iron core column 3, line bag 4 and upper yoke 1, the fixing respectively by bonding way of lower yoke 2.

First by bonding way, silicon steel sheet is made iron core column, line bag is turned to by ribbon core mode, upper and lower iron yoke is made by lamination process, the inserted sheet mode but not the center pillar of traditional transformer, upper and lower iron yoke interlock, the line bag novel super high power photovoltaic testing power supply that assemble bonding with upper and lower iron yoke junction epoxide-resin glue is fissioned transformer.Leakage inductance than common transformer under the prerequisite not increasing the cost of raw material is much larger, the inrush current when impact substantially reducing transformer carries, and is the effective especially low cost solution of one to needing the transformer of large leakage inductance.

Use silica gel bonding way, by semi-automatic press device, silicon steel sheet is pressed into transformer fe stem stem as shown in Figure 2, surrounding arranges GPO3 plate; Then by up-coiler, copper strips or aluminium strip are wound in the iron core column as Fig. 2, make line bag; By semi-automatic press device, make upper and lower iron yoke assembly as shown in Figure 2 with folder clamping silicon steel sheet; The two ends of online bag, iron core column evenly apply epoxide-resin glue respectively, 2 same solenoid components are assembled into super high power photovoltaic testing power supply fission transformer as shown in Figure 1.

Leakage inductance is that a part of magnetic flux that motor primary and secondary is missed in the process of coupling, and the leakage inductance of transformer should be that the magnetic line of force that coil produces can not all by secondary coil, and the inductance therefore producing leakage field is called leakage inductance.GPO3 is the insulating sheet material that glass mat is made together with unsaturated polyester resin, has good electric property, withstand voltage height, fire-retardant, resistance to electric leakage, arc resistance can superior feature.

Above-mentioned execution mode is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.

Claims

1. a high-power photovoltaic system testing power supply fission transformer, it is characterized in that: comprise upper yoke, lower yoke, iron core column and line bag, iron core column is provided with between upper yoke and lower yoke, line looping is had mercy in iron core column, line bag and upper yoke, the fixing respectively by bonding way of lower yoke.

2. high-power photovoltaic system testing power supply as claimed in claim 1 fission transformer, is characterized in that: described line bag is bonding with upper yoke, lower yoke respectively by epoxy resin.

3. high-power photovoltaic system testing power supply as claimed in claim 1 fission transformer, is characterized in that: described upper yoke, lower yoke and iron core column are cuboid.