CN202632935U

CN202632935U - Magnetic integration reactor

Info

Publication number: CN202632935U
Application number: CN 201220221626
Authority: CN
Inventors: 仇亮安; 胡维生; 陆晓月; 陈正秋
Original assignee: SHINENERGY TECHNOLOGY (SHANGHAI) Ltd
Current assignee: SHINENERGY TECHNOLOGY (SHANGHAI) Ltd
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2012-12-26
Anticipated expiration: 2022-05-16

Abstract

The utility model discloses a magnetic integration reactor. According to the magnetic integration reactor, each phase is formed by connecting two reactor units in series, and at least one yoke of the iron cores in the two reactor units is shared; the core columns of the iron cores in the two reactor units are arranged up and down which are coaxial with each other and are divided into an upper reactor unit and a lower reactor unit; the iron core of the upper reactor unit comprises an upper yoke, an upper core column and a lower yoke; the iron core of the lower reactor unit comprises an upper yoke, a lower core column and a lower yoke; the lower yoke in the iron core of the upper reactor core and the upper yoke in the iron core of the lower reactor unit are shared to form a middle yoke; the upper yoke, the upper core column and the middle yoke in the iron core of the upper reactor unit form a closed magnetic circuit; and the lower yoke, the lower core column and the middle yoke in the iron core of the lower reactor unit form another closed magnetic circuit. Compared with two separated reactors, the magnetic integration reactor has the advantages that one yoke is saved, the size is reduced, the cost is reduced, and the iron core loss is reduced.

Description

The integrated reactor of magnetic

Technical field

The utility model relates to the reactor technical field, the integrated reactor of particularly a kind of magnetic.

Background technology

Replenish as a kind of of the electric power system energy, new forms of energy generate electricity by way of merging two or more grid systems will become following main development trend.Yet combining inverter generally adopts the high-frequency PWM modulation, causes a large amount of higher harmonic currents to get into electrical network, can produce other EMI sensitive equipments in the electrical network like this and disturb.The LCL filter of combining inverter AC side output, obvious to suppressing the high order harmonic component effect.Along with the extensive use of high-power combining inverter in the new forms of energy industry, traditional inferior positions such as LCL filter volume, cost and loss are particularly remarkable, seriously restricting the development of electronic power convertor.The volume of LCL filter and cost depend primarily on filter inductance Ln1, Ln2 magnetic core.Therefore the selection of filter inductance Ln1, Ln2 and design extremely important.

The utility model content

The utility model technical problem to be solved is to provide a kind of magnetic integrated reactor to filter inductance Ln1 in the existing LCL filter, the existing problem of Ln2.The integrated reactor of this magnetic is through integrated magnetic, and with two reactor Ln1 and the coupling of Ln2 magnetic circuit, a shared iron yoke reduces volume, thereby reduces consumption unshakable in one's determination, reduces cost and loss.

The utility model technical problem to be solved can realize through following technical scheme:

The integrated reactor of magnetic, each is made up of the series connection of two reactance unit, it is characterized in that, and the iron core in two reactance unit has at least an iron yoke shared.

In a preferred embodiment of the utility model; The iron core stem stem of two reactance unit becomes coaxial line to be arranged above and below to be divided into upper and lower reactance unit; The iron core of wherein going up reactance unit comprises upper yoke, goes up stem stem and lower yoke; The iron core of following reactance unit comprises upper yoke, following stem stem and lower yoke; Iron yoke in the middle of one of the shared formation of upper yoke in lower yoke in the last reactance unit iron core and the iron core of following reactance unit, the upper yoke in the iron core of last reactance unit, upward stem stem becomes a closed magnetic path with middle iron yoke piece, and the lower yoke in the iron core of following reactance unit, time stem stem become another closed magnetic path with middle iron yoke piece.

Owing to adopted technical scheme as above, the integrated reactor of the magnetic of the utility model is compared with two reactors that separate, and saves an iron yoke, and volume reduces, and cost reduces.Core loss also reduces thereupon simultaneously.

Description of drawings

Fig. 1 is the electric principle schematic of the integrated reactor of the utility model magnetic.

Fig. 2 is the integrated core of reactor structural representation of the utility model magnetic.

Fig. 3 is the integrated reactor overall structure of a utility model magnetic sketch map.

Embodiment

Further specify the utility model below in conjunction with accompanying drawing and embodiment.

Referring to Fig. 1; The integrated reactor of the magnetic that provides among the figure; Be made up of U, V, W three-phase, each is made up of two reactance unit Ln1 and Ln2 series connection, and wherein 1U1,1V1,1W1 are the input of the integrated reactor of magnetic; 1U2,1V2,1W2 are the output of the integrated reactor of magnetic, and C1, C2, C3 are middle spindle nose.

Referring to Fig. 2; The iron core stem stem of two reactance unit becomes coaxial line to be arranged above and below to be divided into upper and lower reactance unit; The iron core of wherein going up reactance unit comprises upper yoke 1, goes up stem stem 2 and lower yoke; The iron core of following reactance unit comprises upper yoke, following stem stem 4 and lower yoke 5; Iron yoke 3 in the middle of one of the shared formation of upper yoke in lower yoke in the last reactance unit iron core and the iron core of following reactance unit, is gone up stem stem 2 and middle iron yoke 3 constitutes a closed magnetic path, the lower yoke 5 in the iron core of following reactance unit, following stem stem 4 and middle iron yoke 3 another closed magnetic paths of formation at the upper yoke 1 in the iron core of last reactance unit.

Referring to Fig. 3, the last stem stem of last reactance unit is provided with reactance unit coil 6, and the following stem stem of following reactance unit is provided with reactance unit coil 7.

Claims

1. the integrated reactor of magnetic, each is made up of two reactance unit series connection, it is characterized in that, and the iron core in two reactance unit has at least an iron yoke shared.

2. the integrated reactor of magnetic as claimed in claim 1; It is characterized in that; The iron core stem stem of two reactance unit becomes coaxial line to be arranged above and below to be divided into upper and lower reactance unit; The iron core of wherein going up reactance unit comprises upper yoke, goes up stem stem and lower yoke, and the iron core of following reactance unit comprises upper yoke, following stem stem and lower yoke, middle iron yoke of the shared formation of upper yoke in the lower yoke in the last reactance unit iron core and the iron core of following reactance unit; Upper yoke in the iron core of last reactance unit, last stem stem become a closed magnetic path with middle iron yoke piece, and the lower yoke in the iron core of following reactance unit, following stem stem become another closed magnetic path with middle iron yoke piece.