CN2870109Y

CN2870109Y - Local magnetic saturation electric adjusted iron-core reactor

Info

Publication number: CN2870109Y
Application number: CN 200520094273
Authority: CN
Inventors: 李永健
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-06
Filing date: 2005-12-06
Publication date: 2007-02-14
Anticipated expiration: 2015-12-06

Abstract

The utility model local magnetic saturation electric iron core reactor, the basic structure is B shape iron core, iron core is connected with on both ends of this B shape core center column to form square control iron core, control winding is provided on both sides of control iron core, work winding is provided on both side columns of main magnetic circuit B shape iron core, control magnetic circuit carries out local magnetic saturation adjustment for main magnetic circuit, changes magnetic reluctance of the whole main magnetic circuit, when said method is used to control current size of main circuit, harmonic will not be generated, the utility model has the advantages of simple structure, low manufacturing cost, good performance, easy to use.

Description

Local magnetic saturation electrically-tuned core reactor

Technical field

The utility model relates to Regulatable reactor.Particularly the electricity that uses of Electricity Departments is transferred iron core reactor.

Background technology

Electricity transfers iron core reactor to be mainly used in the static passive compensation device, as the use in parallel of adjustable inductive element with capacitor bank, by adjusting inductance value, capacity current unnecessary in the networking is compensated, or connect to use to limit with the capacitor group and shove and harmonic wave.It all is a kind of saturable reactors that existing electricity is transferred iron core reactor, it is operated in the magnetic saturation state, promptly magnetic flux density get very high, the shortcoming that this Regulatable reactor exists is, because it is operated in the magnetic saturation state, along with the change of electric current is big, wave distortion also becomes greatly, so produce a large amount of harmonic waves is arranged, this brings a lot of troubles to use, therefore, must dispose filter in the device during use, cost is very high.

The utility model content

The purpose of this utility model provides a kind of simple in structure, low cost of manufacture,, performance is good, and no harmonic wave produces, and electricity easy to use is transferred iron core reactor.

The technical solution of the utility model is by day font iron core, the both end sides of newel of font iron core connects iron core and forms square shape control iron core in day, be wound with the control winding in square shape control iron core both sides, on the two side columns of day font iron core, be wound with the work winding and constitute; Or by two days font iron core, both end sides at the newel of font iron core on the two is connected with iron core, the newel of itself and font iron core on the two is combined to form square shape control iron core, on the newel of font iron core on the two, be wound with the control winding, on the two side columns of font iron core on the two, be wound with the work winding and constitute.Both technical patterns one to, compare the former and adopt a day its planform of font iron core to be the T font, the latter adopts two days its structure of font iron core to be H shape.

When in the magnetic circuit air-gap being arranged, air-gap influences the magnetic resistance size in the magnetic circuit, and magnetic resistance change rate influences the size of magnetic flux, and magnetic flux change influences the inductance value of coil on the magnetic circuit, so can change the inductance value of coil with the length of regulating the space.Magnetic resistance is very big when the iron core magnetic saturation, is equivalent to add air-gap, if the magnetic saturation degree in the magnetic circuit changes, magnetic resistance also changes thereupon, causes the variation of magnetic flux, so the inductance value of coil changes in the magnetic circuit.

The utility model is when regulating the DC control electric current that changes control coil, main magnetic circuit day, the word iron core changed with the magnetic saturation degree of the local iron core of control magnetic circuit iron core intersection (referring to the A ' shown in the accompanying drawing, A " district); so the magnetic resistance of main magnetic circuit, magnetic flux change, thus regulate the inductance value of actuating coil on the main magnetic circuit.

The magnetic flux density that the utility model produces actuating coil, the linearity range work that design is in the magnetization curve of iron core gets final product.

The utility model control magnetic circuit just carries out local magnetic saturation adjustment to main magnetic circuit, is equivalent to add adjustable air-gap at main magnetic circuit, changes the magnetic resistance of whole main magnetic circuit, when this way is controlled the size of current of main circuit, does not produce harmonic wave.It is simple in structure, low cost of manufacture, and performance is good, and is easy to use.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram.

Fig. 2 is another example structure schematic diagram of the utility model.

Embodiment

The utility model basic structure is by day font iron core 1a, the both end sides of newel 2a of font iron core connects

iron core

31,32,33 and forms square shapes control iron cores 3 in this day, be wound with control winding 30a, 30b in square shape control iron core 3 both sides, on two side columns 4a, the 5a of day font iron core 1a, be wound with work winding 40a, 50a and constitute.Two control winding 30a, 30b on the control iron core 3 can be series connection, also can be in parallel; On the main magnetic circuit day font iron core 1a two work winding 40a, 50a can be series connection, also can be in parallel.Principle in parallel is that the flow direction that produces in iron core of two coils is identical.Adjust the operating voltage of each winding by adopting the serial or parallel connection design.

Embodiment in addition of the present utility model is by two days font iron core 1a, 1b, both end sides at newel 2a, the 2b of two days font iron core 1a, 1b is connected with

iron core

31,32,31,32 and two day of iron core, newel 2a, the 2b of font iron core were combined to form square shape control iron core 3, be wound with control winding 30a, 30b in control iron core 3 both sides, promptly on newel 2a, the 2b of font iron core 1a, 1b on the two, be wound with control winding 30a, 30b, on two side columns 4a, the 4b of font iron core 1a, 1b on the two, 5a, 5b, be wound with work winding 40a, 40b, 50a, 50b and constitute.Two control winding 30a, 30b on the control iron core 3 can be series connection, also can be in parallel; One group of work winding 40a, 50a/40b, 50b on each main magnetic circuit day font iron core 1a/1b can be series connection, also can be in parallel, and the work winding on the two days font iron core is connected mutually, also can be parallel with one another.Principle in parallel is that the flow direction that produces in iron core of two coils is identical.Adjust the operating voltage of each winding by adopting the serial or parallel connection design.

Claims

1, local magnetic saturation electrically-tuned core reactor, it is characterized in that by day font iron core (1a), connect iron core (31,32,33) in the both end sides of the newel (2a) of this day font iron core and form square shape control iron core (3), be wound with control winding (30a, 30b) in square shape control iron core (3) both sides, on the two side columns (4a, 5a) of day font iron core (1a), be wound with work winding (40a, 50a) and constitute.

2, local magnetic saturation electrically-tuned core reactor according to claim 1, it is characterized in that controlling the control winding of two on the iron core (3) (30a, 30b) is series connection, also can be in parallel; On the main magnetic circuit day font iron core (1a) two work winding (40a, 50a) is series connection, also can be in parallel.

3, local magnetic saturation electrically-tuned core reactor, it is characterized in that by two days font iron core (1a, 1b), both end sides at the newel (2a, 2b) of two days font iron core (1a, 1b) is connected with iron core (31,32), iron core (31,32) is combined to form square shape control iron core (3) with the newel (2a, 2b) of two days font iron core, be wound with control winding (30a, 30b) in control iron core (3) both sides, two days the font iron core (1a, 1b) two side columns (4a, 4b, 5a, 5b) on be wound with work winding (40a, 40b, 50a, 50b) and constitute.

4, local magnetic saturation electrically-tuned core reactor according to claim 3, it is characterized in that controlling the control winding of two on the iron core (3) (30a, 30b) is series connection, also can be in parallel; One group of work winding (40a, 50a/40b, 50b) on each main magnetic circuit day font iron core (1a/1b) is series connection, also can be in parallel, and the work winding on the two days font iron core is mutual series connection, also can be parallel with one another.