CN102360733A - Magnetic saturation type three-phase controllable reactor - Google Patents
Magnetic saturation type three-phase controllable reactor Download PDFInfo
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- CN102360733A CN102360733A CN201110148655XA CN201110148655A CN102360733A CN 102360733 A CN102360733 A CN 102360733A CN 201110148655X A CN201110148655X A CN 201110148655XA CN 201110148655 A CN201110148655 A CN 201110148655A CN 102360733 A CN102360733 A CN 102360733A
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Abstract
The invention provides a magnetic saturation type three-phase controllable reactor, comprising three main iron core columns, three working windings, a top yoke, a top yoke control winding, a bottom yoke, a bottom yoke control winding and the like, wherein the whole body of each main iron core column is in a columnar shape with equal sections and the main iron core is formed by overlapping a plurality of iron core cakes with the same sectional shape; certain air gaps space are reserved among the iron core cakes and used as air gaps of the magnetic saturation type three-phase controllable reactor; upper and lower ends of the three main iron core columns are respectively connected with the top yoke and the bottom yoke; and the top yoke and the bottom yoke are respectively wound by the top yoke control winding and the bottom yoke control winding. According to the invention, by controlling direct currents of the top yoke control winding and the bottom yoke control winding to change the saturation degrees of the top yoke and the bottom yoke, the adjustment of a reactance value of the magnetic saturation type three-phase controllable reactor is further realized. The magnetic saturation type three-phase controllable reactor provided by the invention can be widely applied to a middle-high voltage level electric power system.
Description
Technical field
The present invention relates to a kind of reactor, be specifically related to a kind of three-phase controllable electrical resistor.
Background technology
At present, formula controlled reactor in adjustable magnetic road is divided into two kinds of forms from core construction: i.e. magnetic valve type and stem magnetic saturation type controlled reactor.Wherein the patent of magnetic valve type controllable reactor as: 95223137.9 etc.; The patent of stem magnetic saturation type controlled reactor as: 99250344.2 etc.Wherein magnetic valve type is the reactance that changes winding through the magnetic saturation state of the small bore section that is provided with of control core limb, to reach the purpose of the reactance value that changes reactor.Its architectural feature is: iron core has two main core posts and corresponding iron yoke piece to become, and is equipped with a small bore section on two main core posts; Respectively be with one on each core limb and be divided into two-part winding up and down; 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; The winding of wherein working belongs to a winding with the control winding, and the control winding has the effect of extracting the required magnetization energy of D.C. magnetic biasing concurrently.Its weak point is, owing to be equipped with the small bore section on two main core posts, so its complex structure, manufacturability is poor, cost is high.Stem magnetic saturation type controlled reactor has similar structures, and its special character is: core limb is a uiform section, and its sectional area is less than iron yoke sectional area; Being equipped with in work winding inboard and independently controlling winding, get can winding etc., and this structure is applicable to the voltage levels electric power system.Its weak point is; The control winding, get can winding with work that winding is concentric to be placed; Cause the average turn of work winding long bigger; The copper consumption of reactor, higher with iron amount, total cost, and work winding, control winding, get the main core post heating of can winding and being in degree of depth saturation condition and concentrate, and be easy to generate local overheating.
The present three-phase controllable electrical resistor modes that adopt a plurality of magnetic circuit combinations more, no matter magnetic valve type still is a stem magnetic saturation type controlled reactor all needs more a plurality of core limbs, and the core material consumption is big.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, propose a kind of magnetic saturation type three-phase controllable electrical resistor.The present invention does not apply D.C. magnetic biasing to the main core post; Avoid main core post entering hypersaturated state and cause local overheating; But last yoke and following yoke are applied D.C. magnetic biasing, and change the magnetic saturation type three-phase controllable electrical resistor magnetic resistance size of yoke magnetic circuit up and down, realize adjusting to reactance value and capacity.
Technical scheme of the present invention is following:
A kind of magnetic saturation type three-phase controllable electrical resistor of the present invention comprises three main core posts, three work windings, goes up yoke, goes up yoke control winding, yoke, yoke control winding down down.Wherein main core post integral body is prismatic column, and the main core post is formed by the identical cake stack unshakable in one's determination of a plurality of cross sectional shapes, leaves the air gap of airspace as the magnetic saturation type three-phase controllable electrical resistor between each cake unshakable in one's determination.The two ends up and down of three main core posts connect and compose the main magnetic circuit of magnetic saturation type three-phase controllable electrical resistor respectively with last yoke, following yoke.Three work windings are set in respectively on three main core posts, and three work windings are connected with the industrial frequency AC electric current during operate as normal, the main flux of the magnetic saturation type three-phase controllable electrical resistor that flows in three main core posts and last yoke, the following yoke.Its special character is: upward the middle part of the middle part of yoke and following yoke all has through hole, and last yoke control winding passes described through hole respectively on last yoke and following yoke with the coiling of following yoke control winding.Last yoke controls winding and following yoke is controlled winding feeding direct current, then goes up yoke and centers on the mobile direct current flux of through hole separately respectively with following yoke generation.The direct current of yoke control winding and following yoke control winding in the increase, the direct current flux of then going up yoke and following yoke increases gradually.When direct current increased to certain value, last yoke got into hypersaturated state with following yoke, and magnetic permeability declines to a great extent, and having limited flows through goes up the main flux of yoke and following yoke, and then causes the reactance value of magnetic saturation type three-phase controllable electrical resistor to reduce.The direct current that the present invention goes up yoke control winding and following yoke control winding through control changes the degree of saturation that goes up yoke and following yoke, realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
According to the difference of magnetic saturation type three-phase controllable electrical resistor structure, last yoke is that E shape iron core or column are unshakable in one's determination with following yoke.The direction of last yoke and following yoke middle part through hole is vertical with the main flux direction of flow through last yoke and following yoke.
According to the difference of magnetic saturation type three-phase controllable electrical resistor structure, last yoke is with following yoke or do not open the hole, but two ends prolong also mutual the connection to both sides respectively, constitute a ring-shaped core jointly.Last yoke control winding and following yoke control winding on last yoke and following yoke, will be gone up yoke control winding and feed direct current with following yoke control winding respectively, then the generation upward annular direct current flux of yoke and following yoke of flowing through successively.Direct current through controlling yoke control winding and following yoke control winding changes the degree of saturation that goes up yoke and following yoke, can realize the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
According to the difference of magnetic saturation type three-phase controllable electrical resistor structure, last yoke control winding is made up of single winding or a plurality of winding with following yoke control winding, perhaps merges into a winding.
Description of drawings
Fig. 1 is one of patent working of the present invention example, two structural representation;
Fig. 2 is the structure side view of one of patent working example of the present invention;
Fig. 3 is the dc magnetizing of the yoke up and down flow direction sketch map of one of patent working example of the present invention;
Fig. 4 is two structure side view of patent working example of the present invention;
Fig. 5 is three structural representation of patent working example of the present invention;
Fig. 6 is three structure side view of patent working example of the present invention;
Fig. 7 is four structural representation of patent working example of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Embodiment one
Fig. 1 is the structural representation of the embodiment of the invention one, and Fig. 2 is the structure side view of the embodiment of the invention one.As depicted in figs. 1 and 2, magnetic saturation type three-phase controllable electrical resistor of the present invention comprises three main core posts 1, three work windings 2, goes up yoke 3, goes up yoke control winding 4, yoke 5, six parts such as yoke control winding 6 down down.Main core post 1 integral body is prismatic column, and cross sectional shape is circle or rectangle, and main core post 1 is formed by the identical cake stack unshakable in one's determination of a plurality of cross sectional shapes, leaves the air gap of airspace as the magnetic saturation type three-phase controllable electrical resistor between each cake unshakable in one's determination.Last yoke 3 is E shape iron core with following yoke 5, and three cantilever arms are connected with the two ends up and down of three main core posts 1 respectively, constitute the main magnetic circuit of magnetic saturation type three-phase controllable electrical resistor.Three work windings 2 are set in respectively on three main core posts 1, and three work windings 2 are connected with the industrial frequency AC electric current during operate as normal, three main core posts 1 and last yoke 3, flow in the yoke 5 main flux of magnetic saturation type three-phase controllable electrical resistor down.Two waists of last yoke 3 and following yoke 5 are respectively opened the through hole of a vertical direction, and two through holes that waist is passed in the coiling that last yoke control winding 4 and following yoke are controlled winding 6 respectively are around in a side of yoke 3 and following yoke 5, and are as shown in Figure 2.Be connected to external direct current power supply through a current-limiting resistance after last yoke control winding 4 is connected with following yoke control winding 6 and feed direct current; Then go up yoke 3 and constitute two separate closing magnetic circuits respectively with following yoke 5; Generation centers on the mobile direct current flux of through hole separately respectively, and is as shown in Figure 3.The direct current of yoke control winding 4 and following yoke control winding 6 in the increase, the closed magnetic circuit magnetic flux of then going up yoke 3 and following yoke 5 increases gradually.When direct current increased to certain value, last yoke 3 got into hypersaturated state with following yoke 5, and magnetic permeability declines to a great extent, and having limited flows through goes up the main flux of yoke 3 and following yoke 5, and then causes the reactance value of magnetic saturation type three-phase controllable electrical resistor to reduce.The direct current that the present invention goes up yoke control winding 4 and following yoke control winding 6 through control changes the degree of saturation that goes up yoke 3 and following yoke 5, realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
Embodiment two
Fig. 1 is the structural representation of the embodiment of the invention two, and Fig. 4 is two a structure side view of the embodiment of the invention.Like Fig. 1 and shown in Figure 4, last yoke 3 is E shape iron core with following yoke 5, and three cantilever arms are connected with the two ends up and down of three main core posts 1 respectively, constitute the main magnetic circuit of reactor.Two waists of last yoke 3 and following yoke 5 are respectively opened the through hole of a vertical direction, and last yoke control winding 4 is divided into two groups of both sides that are around in yoke 3 and following yoke 5 with two through holes that waist is passed in the coiling of following yoke control winding 6 respectively, and is as shown in Figure 4.The direct current that the present invention goes up yoke control winding 4 and following yoke control winding 6 through control changes the degree of saturation that goes up yoke 3 and following yoke 5, realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.This embodiment is applicable to the situation the when thickness of yoke 3 and following yoke 5 is big.
Embodiment three
Fig. 5 is the structural representation of the embodiment of the invention three, and Fig. 6 is the structure side view of the embodiment of the invention three.Like Fig. 5 and shown in Figure 6, last yoke 3 is that column is unshakable in one's determination with following yoke 5, and the side is connected with the two ends up and down of three main core posts 1 respectively, constitutes the main magnetic circuit of magnetic saturation type three-phase controllable electrical resistor.Respectively open the rectangular opening of two horizontal directions at the middle part of last yoke 3 and following yoke 5, last yoke control winding 4 passes the outside that two rectangular openings are around in yoke 3 and following yoke 5 respectively with the coiling of following yoke control winding 6, and is as shown in Figure 6.The present invention changes the degree of saturation that goes up yoke 3 and following yoke 5 through regulating the direct current of going up yoke control winding 4 and following yoke control winding 6, realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
Embodiment three is that through hole is a horizontal direction with the difference of embodiment one, two, very little and situation when highly higher of the thickness that is applicable to yoke 3 and following yoke 5.Compare with embodiment one, two, embodiment three can make the more compact structure of magnetic saturation type three-phase controllable electrical resistor.
Embodiment four
Fig. 7 is the structural representation of the embodiment of the invention four; As shown in Figure 7, last yoke 3 is L shaped iron core with following yoke 5, does not open the hole; But two ends connect mutually; Ring-shaped core of common formation, the two ends up and down of three main core posts 1 are connected with following yoke 5 with last yoke 3 respectively, constitute the main magnetic circuit of magnetic saturation type three-phase controllable electrical resistor.Three work windings 2 are set in respectively on three main core posts 1, and three work windings 2 are connected with the industrial frequency AC electric current during operate as normal, three main core posts 1 and last yoke 3, flow in the yoke 5 main flux of magnetic saturation type three-phase controllable electrical resistor down.Last yoke control winding 4 and following yoke control winding 6 are respectively around the top and the side of last yoke 3 and following yoke 5.Last yoke control winding 4 feeds direct current with following yoke control winding 6, and then generation is flowed through successively and gone up the annular direct current flux of yoke 3 and following yoke 5.Direct current through controlling yoke control winding and following yoke control winding changes the degree of saturation that goes up yoke and following yoke, can realize the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
Embodiment four is to go up yoke 3 and toroid of following yoke 5 common formations with the difference of embodiment one, two, three, thereby needn't perforate design independently magnetic circuit.Embodiment four can make the structure of magnetic saturation type three-phase controllable electrical resistor simpler, and manufacturability is better.
Claims (5)
1. magnetic saturation type three-phase controllable electrical resistor comprises three main core posts (1), three work windings (2), goes up yoke (3), goes up yoke control winding (4), yoke (5), yoke control winding (6) down down; Said main core post (1) integral body is prismatic column; Main core post (1) is formed by the identical cake stack unshakable in one's determination of a plurality of cross sectional shapes, leaves the air gap of airspace as the magnetic saturation type three-phase controllable electrical resistor between each cake unshakable in one's determination; Three described main core posts (1) two ends up and down are connected with last yoke (3), following yoke (5) respectively; Three work windings (2) are set in respectively on three main core posts (1); Three work windings (2) are connected with the industrial frequency AC electric current during operate as normal, the main flux of the magnetic saturation type three-phase controllable electrical resistor that flows in three main core posts (1) and last yoke (3), the following yoke (5); It is characterized in that: go up yoke (3) and following yoke (5) and be wound with yoke control winding (4) and following yoke control winding (6) respectively, be used to regulate the reactance value of magnetic saturation type three-phase controllable electrical resistor.
2. magnetic saturation type three-phase controllable electrical resistor according to claim 1; It is characterized in that: all have through hole at the middle part of last yoke (3) and the middle part of following yoke (5), the coiling of last yoke control winding (4) and following yoke control winding (6) is passed through hole respectively on last yoke (3) and following yoke (5); To go up yoke and control winding (4) and following yoke control winding (6) feeding direct current, and then go up the generation of yoke (3) and following yoke (5) and center on the mobile direct current flux of through hole separately respectively; Through controlling the direct current of yoke control winding (4) and following yoke control winding (6), the degree of saturation of yoke in the change (3) and following yoke (5) realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
3. magnetic saturation type three-phase controllable electrical resistor according to claim 1 is characterized in that: go up yoke (3) and following yoke (5) and be E shape iron core or column iron core; The direction of last yoke (3) and following yoke (5) middle part through hole is vertical with the main flux direction of following yoke (5) with the last yoke (3) of flowing through.
4. magnetic saturation type three-phase controllable electrical resistor according to claim 1 is characterized in that: go up yoke (3) and following yoke (5) and do not open the hole; Prolongation also is connected mutually to both sides respectively at the two ends of last yoke (3) and following yoke (5), constitutes an annular; Last yoke control winding (4) and following yoke control winding (6) are respectively on last yoke (3) and following yoke (5); Last yoke control winding (4) and following yoke control winding (6) feed direct current, and then producing flows through successively goes up the annular direct current flux of yoke (3) and following yoke (5); Through controlling the direct current of yoke control winding (4) and following yoke control winding (6), the degree of saturation of yoke in the change (3) and following yoke (5) realizes the adjusting to magnetic saturation type three-phase controllable electrical resistor reactance value.
5. magnetic saturation type three-phase controllable electrical resistor according to claim 1 is characterized in that: go up yoke control winding (4) and following yoke control winding (6) and be made up of single winding or a plurality of winding, perhaps merge into a winding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110148655XA CN102360733A (en) | 2011-06-03 | 2011-06-03 | Magnetic saturation type three-phase controllable reactor |
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| CN201110148655XA CN102360733A (en) | 2011-06-03 | 2011-06-03 | Magnetic saturation type three-phase controllable reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077804A (en) * | 2013-01-31 | 2013-05-01 | 中国电力科学研究院 | Multilevel orthogonal magnetic saturation-type controlled reactor |
| CN103325528A (en) * | 2013-07-11 | 2013-09-25 | 哈尔滨理工大学 | Direct current magnetic control adjustable reactor with air gap |
| CN108461259A (en) * | 2017-02-21 | 2018-08-28 | 傅光祖 | Novel magnetic control reactor |
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| CN2364540Y (en) * | 1999-03-19 | 2000-02-16 | 顺德特种变压器厂 | Resin insulation dry iron-core reactor |
| CN2453528Y (en) * | 2000-12-06 | 2001-10-10 | 肖应琼 | Linear reactance for electric motor soft starting and control |
| CN201233803Y (en) * | 2008-05-28 | 2009-05-06 | 保定天威集团有限公司 | Special reactor having functions of transformer and reactor concurrently |
| CN201359902Y (en) * | 2008-12-16 | 2009-12-09 | 常山科升电力设备有限公司 | Three-phase iron core reactor without electromagnetic vibration |
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2011
- 2011-06-03 CN CN201110148655XA patent/CN102360733A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4206434A (en) * | 1978-08-28 | 1980-06-03 | Hase A M | Regulating transformer with magnetic shunt |
| CN2245799Y (en) * | 1995-04-28 | 1997-01-22 | 顺德特种变压器厂 | Resin insulating dry iron core shunt reactor |
| CN2364540Y (en) * | 1999-03-19 | 2000-02-16 | 顺德特种变压器厂 | Resin insulation dry iron-core reactor |
| CN2453528Y (en) * | 2000-12-06 | 2001-10-10 | 肖应琼 | Linear reactance for electric motor soft starting and control |
| CN201233803Y (en) * | 2008-05-28 | 2009-05-06 | 保定天威集团有限公司 | Special reactor having functions of transformer and reactor concurrently |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077804A (en) * | 2013-01-31 | 2013-05-01 | 中国电力科学研究院 | Multilevel orthogonal magnetic saturation-type controlled reactor |
| CN103325528A (en) * | 2013-07-11 | 2013-09-25 | 哈尔滨理工大学 | Direct current magnetic control adjustable reactor with air gap |
| CN103325528B (en) * | 2013-07-11 | 2015-05-27 | 哈尔滨理工大学 | Direct current magnetic control adjustable reactor with air gap |
| CN108461259A (en) * | 2017-02-21 | 2018-08-28 | 傅光祖 | Novel magnetic control reactor |
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Application publication date: 20120222 |