CN2416583Y

CN2416583Y - Controllable reactor

Info

Publication number: CN2416583Y
Application number: CN 99250343
Authority: CN
Inventors: 张铁军; 李文海; 周重芝
Original assignee: Shenyang Transformer Co ltd
Current assignee: TBEA Shenyang Transformer Group Co Ltd
Priority date: 1999-11-18
Filing date: 1999-11-18
Publication date: 2001-01-24
Anticipated expiration: 2009-11-18

Abstract

The utility model relates to a controllable reactor, which belongs to a variable reactor for adjusting a magnetic deflection. The utility model is suitable for a reactor with a magnetic core, particularly a parallel reactor. The utility model comprises an iron core, a winding, a thyristor, a diode, etc. The utility model is characterized in that the number of turns between taps of the winding which is connected with two ends of the thyristor is 1.5-10% time as total number of turns of the winding, the sections of an iron core column are equal and are less than the sections of an iron yoke, the side iron yoke is arranged between two iron core columns, and a high-voltage winding is also sheathed at the outside of the control winding. The utility model has the advantages of simple structure, good manufacturability, low cost, big range for volume adjustment, etc. The utility model can be suitable for various voltage levels.

Description

A kind of controlled reactor

The utility model belongs to reactor or claims inductor, is a kind of variable reactor of adjustable magnetic biasing, is applicable to the reactor of magnetic core, particularly shunt reactor.

At present, the controlled reactor of adjustable magnetic biasing adopts the structure that is provided with the small bore section on core limb more, is that 95223137.9 magnetic valve type controllable reactor is exactly a kind of typical structure wherein as China Patent No..Its objective is that the magnetic saturation state of the small bore section that is provided with by the control core limb changes the reactance of winding, to reach the purpose that changes the reactor capacity.Its architectural feature is: unshakable in one's determination by two core limbs and corresponding iron yoke piece one-tenth, core limb is provided with a small bore section; Respectively be with one on each core limb and be divided into up and down two-part winding, the number of turn that is connected between the winding tap at controllable silicon two ends is 5% of every post winding total number of turns; Its work winding and control winding belong to a winding.Its weak point is: 1. owing to the number of turn between the winding tap that is connected on the controllable silicon two ends is 5% of this winding total number of turns, therefore, adjustable range is little, can not adapt to the needs of different capabilities adjustable range; 2. because core limb is provided with the small bore section, so its complex structure, poor, the cost height of manufacturability; 3. because work winding and control winding belong to same winding, therefore, when being used for 60kV and above electric power system, its control system is extremely complicated, even is difficult to realize that economy is very poor.

The purpose of this utility model is to overcome the weak point in the above-mentioned prior art, and simple in structure, good manufacturability is provided, cost is low, the capacity regulating scope of application big, be applicable to a kind of controlled reactor of various electric pressures.

The purpose of this utility model can reach by following measure: it comprises the iron core that become with the iron yoke piece by core limb, winding, controllable silicon, diode etc., and its special character is: the number of turn that is connected between the winding tap at controllable silicon two ends is 1.5～10% of this winding total number of turns; Core limb is a uiform section, and its sectional area is less than iron yoke sectional area; Other iron yoke can be one, places between two core limbs; When the utility model is used for high-voltage system, power supply is not inserted at existing winding two ends, as the control winding, the outside of control winding correspondingly respectively is with one and is divided into up and down two-part work winding on two core limbs, and the upper end of the winding the first half of working on two core limbs is connected in parallel and the lower end of drawing outlet, the latter half is connected in parallel and draw outlet; Work on another core limb upper end of winding the latter half, the lower end of the first half of the work winding on core limb is connected to.

The utility model is described in further detail below in conjunction with drawings and Examples:

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

Fig. 2 is another embodiment core construction schematic diagram of the utility model;

Fig. 3 is the elementary diagram of Fig. 1;

Fig. 4 is the utility model high voltage example structure schematic diagram;

Fig. 5 controls the winding connection schematic diagram for the utility model high voltage embodiment;

Fig. 6 is the utility model high voltage embodiment work winding connection schematic diagram.

With reference to Fig. 1～Fig. 6.Of the present utility model unshakable in one's determination 1 is made up of last lower yoke 1a, other iron yoke 1b, two core limb 1c etc.Core limb 1c is a uiform section, does not promptly have the small bore section, and its sectional area is less than the sectional area of iron yokes such as last lower yoke 1a, other iron yoke 1b.In general, the sectional area of core limb 1c is about 1/3rd to 2/3rds of iron yoke (1a, 1b) sectional area.For further simplifying core construction, reduce cost, two other iron yoke 1b can be merged into one, place between two core limb 1c, as shown in Figure 2.Be connected in parallel respectively being with a upper end that is divided into two windings 2 on 2, two core limb 1c of two-part winding up and down on two core limb 1c, and draw outlet A, the lower end of two windings 2 is connected in parallel and draws outlet X.The upper end of lower end winding 2 the latter halfs on another core limb 1c of winding 2 the first half on core limb 1c is connected to, and is connected to diode ZP between the lower end of the first half of the winding 2 on two core limb 1c.A tap F is respectively arranged at bottom of winding 2 the first half on each core limb 1c and the top of the latter half, and the number of turn between each winding 2 tap F is 1.5～10% of these winding 2 totals number of turns.Between each winding 2 tap F, insert controllable silicon KP, and the two polarity is opposite.Make that like this be connected on the number of turn that the controllable silicon two ends are used to control magnetic biasing is 1.5～10% of this winding total number of turns.

When the utility model is used for the high-voltage power system, an above-mentioned winding 2 can be connected to between the upper end and upper end of another winding 2, between lower end and lower end, do not draw outlet, as the control winding, as shown in Figure 5.The outside of controlling winding on two core limb 1c correspondingly respectively is with one and is divided into two-part work winding 3 up and down, as shown in Figure 4.The upper end of winding 3 the first half of working on two core limbs is connected in parallel and draws outlet A; The lower end of winding 3 the latter halfs of working on two core limbs is connected in parallel and draws outlet X; Lower end of work winding 3 the first half on core limb 1c and the upper end of work winding 3 the latter halfs on another core limb 1c connect together respectively, as shown in Figure 6.

The utility model compared with the prior art good effect is as follows:

1. be this winding owing to the utility model is connected on the controllable silicon two ends for the umber of turn of controlling magnetic biasing 1.5～10% of total number of turns overcome in the prior art 5% adjustable range little deficiency, so capacity is transferred The joint scope of application is big;

2. because core limb of the present utility model is uiform section, overcome in the prior art on core limb Be provided with poor, the high in cost of production deficiency of complex structure, manufacturability of small bore section, therefore simple in structure, technology Property is good, cost is low;

3. because the utility model is merged into one and place two iron with two in the prior art other iron yokes Between the stem, therefore further simplify the structure, improved technology, reduced cost;

4. because the utility model is with the winding of independently working in the control winding outside, when being used for the voltage levels electric power system, when particularly 60kV is above, need not improve the electric pressure of control system, therefore applicable to various electric pressures.

In a word, the utlity model has simple in structure, good manufacturability, cost is low, the capacity regulating scope of application big, be applicable to advantage such as various electric pressures.

Claims

1. a controlled reactor comprises the iron core that is made of iron yoke and core limb, winding, controllable silicon, diode etc., it is characterized in that: the number of turn that is connected between the winding tap at controllable silicon two ends is 1.5～10% of this winding total number of turns.

2. a kind of controlled reactor according to claim 1 is characterized in that: core limb is a uiform section, and its sectional area is less than iron yoke sectional area.

3. a kind of controlled reactor according to claim 1 and 2 is characterized in that: other iron yoke is one, places between two core limbs.

4. a kind of controlled reactor according to claim 3, it is characterized in that: with above-mentioned winding only as controlling winding, do not draw outlet, the outside of controlling winding on two core limbs correspondingly respectively is with one and is divided into two-part work winding up and down, the upper ends of two work winding the first half are connected in parallel and draw outlet, the lower end of the latter half is connected in parallel and draws outlet.

5. a kind of controlled reactor according to claim 4 is characterized in that: work on another core limb upper end of winding the latter half, the lower end of the winding the first half of working on core limb is connected to.