CN104835637A - Magnetic shunt type total magnetic flux leakage recycling coaxial duplex winding impedance-controllable electric reactor - Google Patents
Magnetic shunt type total magnetic flux leakage recycling coaxial duplex winding impedance-controllable electric reactor Download PDFInfo
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Abstract
The invention relates to a magnetic shunt type total magnetic flux leakage recycling coaxial duplex winding impedance-controllable electric reactor. The electric reactor has a three-phase three-post coaxial coil structure and further comprises magnetic shunt iron cores, control coils, a magnetic flux leakage recoverer and a rectifier bridge circuit. One control coil, one magnetic shunt iron core and a main power coil are arranged outside each of three main iron cores in turn. The magnetic flux leakage recoverer is arranged between yoke iron cores and the main power coils. A secondary side of the electric reactor is connected with the three-phase rectifier circuit, and the direct current side of the rectifier bridge circuit is connected with an insulated gate bipolar transistor IGBT. The advantage of the invention is that the fast adjustable extra-high voltage high-capacity electric reactor in a power network is provided, and the impedance ratio of a conventional high impedance transformer type electric reactor is increased from original 33 percent-70 percent to 1 percent-300 percent, the equipment loss is reduced by 50 percent, energy is effectively saved, and the cost is reduced. Through adoption of the magnetic flux leakage recoverer to reduce the magnetic flux leakage, the size of the electric reactor is reduced, and the equipment cost is reduced by 20 percent.
Description
Technical field
The present invention relates to the full leakage field of a kind of magnetic shunt type and reclaim coaxial double winding controllable impedance reactor and using method.
Background technology
Existing high-impedance transformer is a kind of special Regulatable reactor, and wherein leakage reactance Z can be taken between 33%-70%.During for high-voltage fence, high-impedance transformer generally adopts wye delta, to reduce insulating requirements; Then adopt the connection of triangle-opening star in Medial & Low Voltage Power Network, former limit adopts delta connection can eliminate 3 subharmonic, and separately, make every phase load and other two-phase independently, thus can control separately, phase-splitting regulates secondary neutral point.But it, owing to adopting the structural design of three-phase and five-pole march-past always, exists impedanoe ratio lower always, equipment volume is large, high cost shortcoming.These shortcomings cause it can not use in larger capacity occasion.And due to itself leakage field higher, loss is comparatively large, also constrains it and uses.In addition, it adopts secondary controllable silicon (thyristor) pressure regulation short circuit mode to control second short circuit electric current, produces larger harmonic wave, also have impact on response speed.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of this invention is to provide the full leakage field of a kind of magnetic shunt type and reclaiming coaxial double winding controllable impedance reactor, solve the impedanoe ratio caused due to structural principle lower, the problem that loss is large, reduce magnetic leakage, reduced volume, reduce cost of manufacture.
For achieving the above object, the present invention is achieved through the following technical solutions:
The full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor, comprise main power coil, yoke core, main iron core, main iron core two ends are fixed by upper and lower yoke core, main iron core outside is provided with main power coil, reactor is three-phase three-column coaxial coil structure, also comprise magnetic shunt iron core, control coil, leakage field recover, rectifier circuit, three main iron core outsides are provided with control coil, magnetic shunt iron core, main power coil successively, are provided with leakage field recover between described yoke core and main power coil; Described reactor secondary side is connected with one group of three phase rectifier bridge circuit, and rectifier circuit DC side is connected with insulated gate bipolar transistor IGBT.
Described leakage field recover comprises magnetic conductive metal layer and insulating barrier, and magnetic conductive metal layer is closely formed by stacking by steel disc, and magnetic conductive metal layer outside is provided with insulating barrier.
Described magnetic shunt iron core is made up of some silicon steel magnetic layers, is provided with air gap between silicon steel magnetic layer, and every layer of silicon steel magnetic layer is formed by stacking by silicon steel sheet.
The full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor using method, when regulating, when namely control coil does not work, the magnetic flux that power coil produces is passed through by main iron core, make it can produce very low no-load current, be equivalent to the no-load transformer that is connected to electrical network; When control coil works, control coil produces perceptual magnetic flux, and is circulated by the magnetic shunt iron core with air gap, by the SCR Trigger Angle of rectifier circuit regulable control coil, can provide the inductance value that controlled.
Compared with prior art, the invention has the beneficial effects as follows:
Provide superhigh pressure Large Copacity quick adjustable reactor in a kind of power network, make the impedance ratio of existing high impedance transformer type reactor from original 33%-70%, bring up to 1%-300%; Equipment loss reduces 50%, effectively saves energy and reduce the cost.Reduce magnetic leakage by leakage field recover, reduce volume, equipment investment reduces 20%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is control principle drawing.
In figure: 1-upper yoke core 2-leakage field recover 3-main iron core 4-control coil 5-magnetic shunt iron core 6-main power coil 7-lower yoke core.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail, but it should be noted that enforcement of the present invention is not limited to following execution mode.
See Fig. 1, Fig. 2, the full leakage field of magnetic shunt 5 type reclaims coaxial double winding controllable impedance reactor, comprise main power coil 6, yoke core, main iron core 3, main iron core 3 two ends are fixed by upper and lower yoke core 1,7, main iron core 3 outside is provided with main power coil 6, reactor is three-phase three-column coaxial coil structure, also comprise magnetic shunt iron core 5, control coil 4, leakage field recover 2, rectifier circuit, three main iron core 3 outsides are provided with control coil 4, magnetic shunt iron core 5, main power coil 6 successively, are provided with leakage field recover 2 between described yoke core and main power coil 6; Described reactor secondary side is connected with one group of three phase rectifier bridge circuit, and rectifier circuit DC side is connected with insulated gate bipolar transistor IGBT.
Wherein, leakage field recover 2 comprises magnetic conductive metal layer and insulating barrier, and magnetic conductive metal layer is closely formed by stacking by steel disc, and magnetic conductive metal layer outside is provided with insulating barrier.Magnetic shunt iron core 5 is made up of some silicon steel magnetic layers, is provided with air gap between silicon steel magnetic layer, and every layer of silicon steel magnetic layer is formed by stacking by silicon steel sheet.
The full leakage field of magnetic shunt 5 type reclaims coaxial double winding controllable impedance reactor using method, when regulating, namely when control coil 4 does not work, the magnetic flux that power coil produces is passed through by main iron core 3, make it can produce very low no-load current, be equivalent to the no-load transformer that is connected to electrical network; When control coil 4 works, control coil 4 produces perceptual magnetic flux, and is circulated by the magnetic shunt iron core 5 with air gap, by the SCR Trigger Angle of rectifier circuit regulable control coil 4, can provide the inductance value that controlled.
By changing the air gap of magnetic shunt iron core 5, just can change reactor impedance ratio, reaching the object of design high impedance.
During control coil work, it can produce leakage flux comparatively in a small amount, and this leakage flux, by leakage field recover (independent iron core loop), drops to minimum to make its loss on equipment impact.
See Fig. 2, the secondary side of controlled reactor accesses one group of three-phase full-controlled rectifier bridge circuit, the DC side of rectifier circuit connects an insulated gate bipolar transistor IGBT, after whole circuit is access in electrical network, three-phase full-controlled rectifier bridge circuit utilizes the Trigger Angle of initial setting (full conducting or fine setting) to carry out rectification work, DC side produces fixing direct voltage, when insulated gate bipolar transistor IGBT turns off, rectifier DC side does not have direct current to flow through, reactor is in Light Condition, when insulated gate bipolar transistor IGBT conducting, rectifier DC side direct current flows through smoothly, reactor is in fully loaded year state, by controlling the make-and-break time of insulated gate bipolar transistor IGBT, the i.e. duty ratio of adjustable DC side output waveform, thus regulate the output capacity of reactor.
Claims (4)
1. the full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor, comprise main power coil, yoke core, main iron core, main iron core two ends are fixed by upper and lower yoke core, main iron core outside is provided with main power coil, it is characterized in that, reactor is three-phase three-column coaxial coil structure, also comprise magnetic shunt iron core, control coil, leakage field recover, rectifier circuit, three main iron core outsides are provided with control coil, magnetic shunt iron core, main power coil successively, are provided with leakage field recover between described yoke core and main power coil; Described reactor secondary side is connected with one group of three phase rectifier bridge circuit, and rectifier circuit DC side is connected with insulated gate bipolar transistor IGBT.
2. the full leakage field of magnetic shunt type according to claim 1 reclaims coaxial double winding controllable impedance reactor, it is characterized in that, described leakage field recover comprises magnetic conductive metal layer and insulating barrier, and magnetic conductive metal layer is closely formed by stacking by steel disc, and magnetic conductive metal layer outside is provided with insulating barrier.
3. the full leakage field of magnetic shunt type according to claim 1 reclaims coaxial double winding controllable impedance reactor, it is characterized in that, described magnetic shunt iron core is made up of some silicon steel magnetic layers, is provided with air gap between silicon steel magnetic layer, and every layer of silicon steel magnetic layer is formed by stacking by silicon steel sheet.
4. the full leakage field of magnetic shunt type according to claim 1-3 any one reclaims the using method of coaxial double winding controllable impedance reactor, it is characterized in that, when regulating, namely when control coil does not work, the magnetic flux that power coil produces is passed through by main iron core, make it can produce very low no-load current, be equivalent to the no-load transformer that is connected to electrical network; When control coil works, control coil produces perceptual magnetic flux, and is circulated by the magnetic shunt iron core with air gap, by the SCR Trigger Angle of rectifier circuit regulable control coil, can provide the inductance value that controlled.
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| CN201510168721.8A CN104835637B (en) | 2015-04-08 | 2015-04-08 | The full leakage field of magnetic shunt path type reclaims coaxial double winding controllable impedance reactor |
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| CN104835637B CN104835637B (en) | 2017-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908644A (en) * | 2021-01-22 | 2021-06-04 | 杭州银湖电气设备有限公司 | Novel double-magnetic-circuit high-impedance controllable reactor |
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| JP2000003819A (en) * | 1998-06-15 | 2000-01-07 | Toshiba Tec Corp | Transformer and electromagnetic equipment |
| CN2911906Y (en) * | 2006-06-20 | 2007-06-13 | 上海追日电气有限公司 | Controllable 3-phase combined reactor |
| CN101299375A (en) * | 2008-03-19 | 2008-11-05 | 丹东欣泰电气股份有限公司 | High leakage reactance type level adjustable series iron-core reactor |
| CN202167853U (en) * | 2011-06-17 | 2012-03-14 | 北京博瑞莱智能科技有限公司 | Magnetic control reactor |
| CN103680889A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped superconducting electric reactor |
| CN204497043U (en) * | 2015-04-08 | 2015-07-22 | 鞍山罗恩伏特科技有限公司 | The full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor |
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2015
- 2015-04-08 CN CN201510168721.8A patent/CN104835637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000003819A (en) * | 1998-06-15 | 2000-01-07 | Toshiba Tec Corp | Transformer and electromagnetic equipment |
| CN2911906Y (en) * | 2006-06-20 | 2007-06-13 | 上海追日电气有限公司 | Controllable 3-phase combined reactor |
| CN101299375A (en) * | 2008-03-19 | 2008-11-05 | 丹东欣泰电气股份有限公司 | High leakage reactance type level adjustable series iron-core reactor |
| CN202167853U (en) * | 2011-06-17 | 2012-03-14 | 北京博瑞莱智能科技有限公司 | Magnetic control reactor |
| CN103680889A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped superconducting electric reactor |
| CN204497043U (en) * | 2015-04-08 | 2015-07-22 | 鞍山罗恩伏特科技有限公司 | The full leakage field of magnetic shunt type reclaims coaxial double winding controllable impedance reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908644A (en) * | 2021-01-22 | 2021-06-04 | 杭州银湖电气设备有限公司 | Novel double-magnetic-circuit high-impedance controllable reactor |
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Effective date of registration: 20190708 Address after: 518000 Block B, 5th Floor, 8 Building, Tian'an Industrial Village, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Hengli Power Supply Co., Ltd. Address before: 114001 Qianshan Road 368, Anshan High-tech Zone, Liaoning Province Patentee before: Anshan sieve grace volt Science and Technology Ltd. |