CN202332477U

CN202332477U - Reactor special for active power filter

Info

Publication number: CN202332477U
Application number: CN2011204523734U
Authority: CN
Inventors: 殷骏
Original assignee: ANHUI LEADZONE INTELLIGENT GRID TECHNOLOGY Co Ltd
Current assignee: ANHUI LEADZONE INTELLIGENT GRID TECHNOLOGY Co Ltd
Priority date: 2011-11-16
Filing date: 2011-11-16
Publication date: 2012-07-11
Anticipated expiration: 2021-11-16

Abstract

The utility model relates to a reactor special for an active power filter. The reactor comprises a plurality of groups of superposed sendust cores, insulating paper for wrapping the superposed sendust cores, a coil wound at the periphery of the insulating paper, two resin base plates which are clamped at two ends of the coil and surround the insulating paper together with the coil, and a nylon rod which penetrates through the centers of the superposed sendust cores and the two resin base plates, wherein the nylon rod is connected with the two resin base plates and is fixedly tightened. By the reactor special for the active power filter, the volume is reduced, the cost is reduced, the loss is reduced, and the noise is reduced; and the reactor has stable performance, is safe and reliable and is convenient to use, and the service life of the reactor is prolonged.

Description

The special-purpose reactor of a kind of Active Power Filter-APF

Technical field

The utility model relates to a kind of reactor, relates in particular to the special-purpose reactor of a kind of Active Power Filter-APF.

Background technology

For the electric power system utility network, weighing a good and bad important indicator of the quality of power supply is exactly mains by harmonics.At present, inhibition or minimizing harmonic wave mainly carry out aspect two in electric power system: first aspect is itself to start with from the harmonic source device that produces harmonic wave.When these device designs, just consider to reduce the method for harmonic wave, the increase harmonic wave suppresses link, has reduced the harmonic wave injection rate of electrical network, takes some measures at harmonic source itself to reduce mains by harmonics greatly.But because the complexity and the power semiconductor device on & off operation mode of modern power systems can not be eliminated mains by harmonics fully.So second importance of harmonic wave control is exactly effective filtering and compensation are carried out in research to the harmonic wave in the system method and measure.And Active Power Filter-APF can be followed the tracks of compensation to the harmonic wave that frequency and amplitude all change owing to have high controllability and a fast-response, thereby receives widely and paying attention to, and becomes at present electric power system harmonic wave both at home and abroad and suppresses the focus studied.During the Active Power Filter-APF operate as normal, offset current is followed the variation that is sawtooth waveforms in the instruction current both sides, and good follow-up control is the key condition of Active Power Filter-APF harmonic compensation; The reactance value is big more; Offset current changes slow more, and the reactance value is more little, and offset current changes fast more.The reactance value must be considered 3 problems after confirming: the one, and loss, the 2nd, noise, the 3rd, the linearity.

Owing to receive the intrinsic influence of traditional harmonic treating apparatus, when selecting reactor, ferrocart core coiling reactor is mostly selected to use by producer; Bulky, cost is high, and noise is very big; Minority scientific research department also proposes to use non-crystalline material, though saturation flux density is very big, has adapted to the high-frequency switching characteristic of power device; But cost is very high, the needs that incompatible commercial running is produced.

The utility model content

In view of this, the utility model provides a kind of Active Power Filter-APF special-purpose reactor, and it is intended to reduce volume, reduce cost, and stable performance, safe and reliable, reduce loss, reduce noise, easy to use, the useful life of also having improved reactor simultaneously.

The utility model is to realize like this; The special-purpose reactor of a kind of Active Power Filter-APF; It comprises Sendust Cores, the said some groups of Sendust Cores of wrapping of some groups of stacks insulating paper, be wound on the peripheral coil of said insulating paper, be held on said coil two ends and surround two resin base plates of said insulating paper and the nylon rod that runs through said some groups of Sendust Cores centers and said two resin base plates in the lump with said coil, said nylon rod connects said two resin base plates and adds and fastens.

As the further improvement of such scheme, said coil is an enameled wire loop.Said two resin base plates are the epoxy resin base plate.

As the further improvement of such scheme, the special-purpose reactor of said Active Power Filter-APF also comprises the output of drawing from said coil.Said output is provided with binding post.Said output also is provided with sheath, and said sheath is adjacent with said binding post.

As the further improvement of such scheme, the special-purpose reactor of said Active Power Filter-APF also comprises two nylon nuts, and the two ends that said two nylon nuts are screwed together in said nylon rod are used to add and fasten said two resin base plates.

Compare with traditional reactor, the reactor that the utility model provides is applied in the Active Power Filter-APF, and it reduces volume, reduce cost, and stable performance, safe and reliable, reduce loss, reduce noise, easy to use, the useful life of having improved reactor simultaneously; The special-purpose reactor of Active Power Filter-APF adopts sendust core to make, and is distributed with natural air gap in the sendust core, has higher magnetic flux density, is difficult for saturated; When making the reactor of equal sensibility reciprocal, significantly reduce the volume that takies; The special-purpose reactor of Active Power Filter-APF adopts epoxy resin board and nylon rod as the immobilization material of reactor, reduces the wastage, and reduces noise, can effectively avoid the electromagnetic interference (EMI) problem.

Description of drawings

Fig. 1 is the generalized section of the special-purpose reactor of the Active Power Filter-APF that provides of the utility model preferred embodiments.

Fig. 2 is the schematic top plan view of the special-purpose reactor of Active Power Filter-APF among Fig. 1.

Symbol description

The special-purpose reactor of Active Power Filter-APF	100
		Sendust Cores	10
Insulating paper	20
		Coil	30
The resin base plate	40
		Nylon rod	50
Output	60
		Sheath	70
Binding post	80
		Nylon nut	90

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Please consult Fig. 1 and Fig. 2 in the lump, the structural representation of the special-purpose reactor 100 of its Active Power Filter-APF that provides for the utility model preferred embodiments, it is applied in the Active Power Filter-APF (figure does not show).Reactor 100 comprise Sendust Cores 10, the some groups of Sendust Cores 10 of wrapping of some groups of stacks insulating paper 20, be wound on the peripheral coil 30 of insulating paper 20, be held on coil 30 two ends and surround two resin base plates 40 of insulating paper 20 and the nylon rod 50 that runs through some groups of Sendust Cores 10 centers and two resin base plates 40 in the lump with coil 30.

Coil 30 is an enameled wire loop, and resin base plate 40 is the epoxy resin base plate.Handle with binding post 80 from the output 60 usefulness sheaths 70 that coil 30 is drawn, sheath 70 is adjacent with binding post 80.Nylon rod 50 connects two resin base plates 40 and adds and fastens, and in this execution mode, the two ends that are screwed together in nylon rod 50 through two nylon nuts 90 add and fasten two resin base plates 40.

In brief, several groups of Sendust Cores 10 stack backs are fixing with insulating paper wrapping 20, turn to the reactor 100 of required impedance again with the enameled wire loop of checking 30.Output 60 usefulness sheaths 70 are handled with binding post 80, clip epoxy resin base plate 40 after, pass magnet ring (being several groups of Sendust Cores 10) center with nylon rod 50, connecting ring epoxy resins base plate 40 adds and fastens.

In sum, the reactor that the ability utility model provides is applied in the Active Power Filter-APF, and it reduces volume, reduce cost, and stable performance, safe and reliable, reduce loss, reduce noise, easy to use, the useful life of having improved reactor simultaneously.The special-purpose reactor of Active Power Filter-APF adopts sendust core to make, and is distributed with natural air gap in the sendust core, has higher magnetic flux density, is difficult for saturated.When making the reactor of equal sensibility reciprocal, significantly reduce the volume that takies.The special-purpose reactor of Active Power Filter-APF adopts epoxy resin board and nylon rod as the immobilization material of reactor, reduces the wastage, and reduces noise, can effectively avoid the electromagnetic interference (EMI) problem.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims

1. the special-purpose reactor of an Active Power Filter-APF; It is characterized in that; It comprises Sendust Cores, the said some groups of Sendust Cores of wrapping of some groups of stacks insulating paper, be wound on the peripheral coil of said insulating paper, be held on said coil two ends and surround two resin base plates of said insulating paper and the nylon rod that runs through said some groups of Sendust Cores centers and said two resin base plates in the lump with said coil, said nylon rod connects said two resin base plates and adds and fastens.

2. the special-purpose reactor of Active Power Filter-APF as claimed in claim 1 is characterized in that said coil is an enameled wire loop.

3. the special-purpose reactor of Active Power Filter-APF as claimed in claim 1 is characterized in that said two resin base plates are the epoxy resin base plate.

4. the special-purpose reactor of Active Power Filter-APF as claimed in claim 1 is characterized in that, the special-purpose reactor of said Active Power Filter-APF also comprises the output of drawing from said coil.

5. the special-purpose reactor of Active Power Filter-APF as claimed in claim 4 is characterized in that said output is provided with binding post.

6. the special-purpose reactor of Active Power Filter-APF as claimed in claim 5 is characterized in that said output also is provided with sheath, and said sheath is adjacent with said binding post.

7. the special-purpose reactor of Active Power Filter-APF as claimed in claim 1; It is characterized in that; The special-purpose reactor of said Active Power Filter-APF also comprises two nylon nuts, and the two ends that said two nylon nuts are screwed together in said nylon rod are used to add and fasten said two resin base plates.