CN201904623U

CN201904623U - Magnetic control reactor

Info

Publication number: CN201904623U
Application number: CN2010206781581U
Authority: CN
Inventors: 丁森浩; 李业; 王喜乐
Original assignee: ZHENGZHOU SAIJIN ELECTRIC CO Ltd
Current assignee: ZHENGZHOU SAIJIN ELECTRIC CO Ltd
Priority date: 2010-12-24
Filing date: 2010-12-24
Publication date: 2011-07-20
Anticipated expiration: 2020-12-24

Abstract

The utility model provides a magnetic control reactor. The magnetic control reactor consists of two three-phase four-post reactors. Each three-phase four-post reactor consists of a four-post iron core and coils wound on four iron core posts. The coils wound on three of the four iron core posts of each four-post iron core are divided into two layers, wherein the inner layer is a direct-current magnet exciting winding coil; and the outer layer is a three-phase alternating-current working winding coil. Magnetic valves are arranged on the three iron core posts. A direct-current magnet exciting winding coil is wound on the other iron core post of the four iron core posts of each three-phase four-post reactor. After being connected in parallel, the alternating-current working windings of the two three-phase four-post reactors are connected with a power grid. After being connected in series, the direct-current magnet exciting windings on the three working iron cores of each three-phase four-post reactor are serially connected with the serially connected direct-current magnet exciting windings on the three working iron cores of the other three-phase four-post reactor and then are externally connected with a controllable direct-current power supply. After being connected in series, the direct-current magnet exciting windings wound on the other iron core post of the two three-phase four-post reactors are also connected with the controllable direct-current power supply.

Description

A kind of magnet controlled reactor

Technical field

The utility model relates to a kind of controlled reactor that is used for reactive power compensation, particularly relates to a kind of magnetic valve type magnetic control reactor of architecture advances.

Background technology

The research of controlled reactor originates in the fifties in last century, the turn-adjusting controlled reactor has appearred in succession, the adjusting gapped-core type controlled reactor, but the governing speed of turn-adjusting controlled reactor and adjusting gapped-core type controlled reactor is slow, its range of application is restricted, development along with power electronic device such as thyristors, thyristor-controlled reactor type (TCR) controlled reactor has appearred again in succession, thyristor control transformer type controlled reactor (TCT), these two kinds of reactors all are exchange flux control type controlled reactors, regulate the capacity of reactor at interval by the break-make that changes alternating current, some DC control type magnet controlled reactors have also appearred in succession when exchanging the appearance of control type magnet controlled reactor, as magnetic saturation reactor, magnetic valve type controllable reactor, magnetic saturation reactor is because the defective of its project organization causes its harmonic current bigger, so limited its application, the magnetic valve type reactor is used for static reactive as controlled reactor in parallel usually, but the manufacturing cost of present magnetic valve type controllable reactor is too high, has limited its extensive use.

The utility model content

The utility model proposes a kind of magnet controlled reactor at the prior art deficiency, can reduce the manufacturing cost of present magnet controlled reactor.

The technical scheme that the utility model adopted:

A kind of magnet controlled reactor, contain two three-phase and four-pole formula reactors, each three-phase and four-pole formula reactor is made of four post iron cores (1) and the coil on four core limbs, in the four post iron cores (1) of each three-phase and four-pole formula reactor wherein on three core limbs the coil of coiling be divided into two-layer, wherein internal layer is DC excitation winding (a 2) coil, skin is three-phase alternating current work winding (a 3) coil, these three core limbs are provided with magnet valve (5), a DC excitation winding coil of coiling (4) on the another one core limb in the four post iron cores (1) of each three-phase and four-pole formula reactor; After being in parallel, the alternate current operation winding (3) of two three-phase and four-pole formula reactors gets access to grid, DC excitation windings in series on three of each three-phase and four-pole formula reactor work iron cores, and then the outside connects controllable direct current power supply after the DC excitation windings in series after being in series with three of another three-phase and four-pole formula reactor; Also connect described controllable direct current power supply after DC excitation winding coil (4) series connection of coiling on the another one core limb of two three-phase and four-pole formula reactors.

Described magnet controlled reactor, two three-phase and four-pole formula reactors adopt identical loop construction, every cross streams work winding of first three-phase and four-pole formula reactor is in parallel with the corresponding alternate current operation winding mutually of second three-phase and four-pole formula reactor and afterwards inserts the corresponding phase of electrical network, and the three-phase alternating current work winding of two three-phase and four-pole formula reactors adopts Y-connection.

Useful good effect of the present utility model:

1, the utility model magnet controlled reactor is simple in structure, greatly reduces the manufacturing cost of magnet controlled reactor.The utility model magnet controlled reactor is made up of two three-phase and four-pole formula reactors, three core limbs are provided with magnet valve in the four post iron cores of each three-phase and four-pole formula reactor, on the 4th post magnet valve is not set, be provided with on the core limb of magnet valve and not only be wound with the alternate current operation winding, also be wound with the DC excitation winding, after being in parallel, the alternate current operation winding of two three-phase and four-pole formula reactors gets access to grid, the DC excitation winding only need add very low controllable direct current power supply and get final product, do not need to bear high voltage, improved reactor stability, reliability.

2, the electric current that passes through on the AC coil of each three-phase and four-pole formula reactor of the utility model magnet controlled reactor contains DC component, but the DC component equal and opposite in direction in two reactor AC coil, direction is opposite, and both offset at back in parallel DC component.Improved the reactor interference free performance.

Description of drawings

Fig. 1 is the core construction of each three-phase and four-pole formula reactor of the utility model magnet controlled reactor;

Fig. 2 is the AC coil annexation of two three-phase and four-pole formula reactors of the utility model magnet controlled reactor;

Fig. 3 is the dc coil annexation of two three-phase and four-pole formula reactors of the utility model magnet controlled reactor.

Embodiment

Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3, the utility model magnet controlled reactor, contain two three-phase and four-pole formula reactors, each three-phase and four-pole formula reactor is made of four posts unshakable in one's determination 1 and the coil on four core limbs, in the four post iron cores 1 of each three-phase and four-pole formula reactor wherein on three core limbs the coil of coiling be divided into two-layer, wherein internal layer is DC excitation winding 2 coils, skin is three-phase alternating current work winding 3 coils, these three core limbs are provided with magnet valve 5, DC excitation winding coil 4 of coiling on the another one core limb in the four post iron cores 1 of each three-phase and four-pole formula reactor; After being in parallel, the alternate current operation winding 3 of two three-phase and four-pole formula reactors gets access to grid, DC excitation windings in series on three of each three-phase and four-pole formula reactor work iron cores, and then the outside connects controllable direct current power supply after the DC excitation windings in series after being in series with three of another three-phase and four-pole formula reactor; Also connect described controllable direct current power supply after DC excitation winding coil 4 series connection of coiling on the another one core limb of two three-phase and four-pole formula reactors.

Core construction at each the three-phase and four-pole formula reactor that Figure 1 shows that magnet controlled reactor: it is made of four core limbs and yoke, wherein have area to dwindle on three core limbs one section, be called magnet valve 5, magnet valve is not set on another core limb, be provided with on three core limbs of magnet valve except that being wound with alternate current operation winding 3, also be wound with the DC excitation winding, DC excitation winding 2 is arranged on the interior zone of AC Windings coil, direct-flow magnet exciting coil 4 of core limb on coiling of magnet valve is not set, and first three-phase reactor and second three-phase reactor adopt identical core construction.

Dc coil annexation at two three-phase and four-pole formula reactors that Figure 3 shows that magnet controlled reactor, wherein the DC excitation winding on three work iron cores of each three-phase and four-pole formula reactor is connected earlier, and then the DC excitation windings in series after being in series with three of another three-phase and four-pole formula reactor, be connected on then on the controllable direct current power supply of AC power (400V three-phase alternating-current supply or 220V single phase alternating current power supply) through obtaining behind the silicon con trolled rectifier; Only after being in series, two windings of a direct-flow magnet exciting coil 4 also are connected on this controllable direct current power supply on each core limb of two three-phase and four-pole formula reactors, for the direct current flux that flows through on the core limb provides path.

Embodiment two: referring to Fig. 1, Fig. 2, Fig. 3, the magnet controlled reactor of present embodiment, wherein first three-phase and four-pole formula reactor and second three-phase and four-pole formula reactor adopt identical loop construction, the AC coil annexation of two three-phase and four-pole formula reactors of magnet controlled reactor as shown in Figure 2, wherein every cross streams work winding of first three-phase and four-pole formula reactor is in parallel with the corresponding alternate current operation winding mutually of second three-phase reactor and afterwards inserts the corresponding phase of electrical network, and the alternate current operation winding of the three-phase of two three-phase reactors adopts Y-connection.

Claims

1. magnet controlled reactor, contain two three-phase and four-pole formula reactors, each three-phase and four-pole formula reactor is made of four post iron cores (1) and the coil on four core limbs, it is characterized in that: in the four post iron cores (1) of each three-phase and four-pole formula reactor wherein on three core limbs the coil of coiling be divided into two-layer, wherein internal layer is DC excitation winding (a 2) coil, skin is three-phase alternating current work winding (a 3) coil, these three core limbs are provided with magnet valve (5), a DC excitation winding coil of coiling (4) on the another one core limb in the four post iron cores (1) of each three-phase and four-pole formula reactor; After being in parallel, the alternate current operation winding (3) of two three-phase and four-pole formula reactors gets access to grid, DC excitation windings in series on three of each three-phase and four-pole formula reactor work iron cores, and then the outside connects controllable direct current power supply after the DC excitation windings in series after being in series with three of another three-phase and four-pole formula reactor; Also connect described controllable direct current power supply after DC excitation winding coil (4) series connection of coiling on the another one core limb of two three-phase and four-pole formula reactors.

2. magnet controlled reactor according to claim 1, it is characterized in that: two three-phase and four-pole formula reactors adopt identical loop construction, every cross streams work winding of first three-phase and four-pole formula reactor is in parallel with the corresponding alternate current operation winding mutually of second three-phase and four-pole formula reactor and afterwards inserts the corresponding phase of electrical network, and the three-phase alternating current work winding of two three-phase and four-pole formula reactors adopts Y-connection.