CN109391041B - Full-period alternating leakage magnetic field recovery type power supply device applied to air-core reactor - Google Patents
Full-period alternating leakage magnetic field recovery type power supply device applied to air-core reactor Download PDFInfo
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- CN109391041B CN109391041B CN201811484604.2A CN201811484604A CN109391041B CN 109391041 B CN109391041 B CN 109391041B CN 201811484604 A CN201811484604 A CN 201811484604A CN 109391041 B CN109391041 B CN 109391041B
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- magnetic field
- power supply
- hook
- leakage magnetic
- iron cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
Abstract
The invention provides a full-period alternating leakage magnetic field recovery type power supply device applied to an air core reactor, which comprises a leakage magnetic field recovery device and a power supply output device. The leakage magnetic field recovery device comprises four 'hook' -shaped iron cores: the iron cores A, B, C and D are opposite in the shape of an integral X, and are arranged to recover magnetic fields in multiple directions; the hook handles of the four hook-shaped iron cores are respectively wound with an induction coil, the hook-shaped head parts of the four iron cores are jointly wound with an induction coil, the five induction coils are electrically connected in series, the two ends of the series connection are voltage output ends of a leakage magnetic field recovery device, and the voltage output ends of the leakage magnetic field recovery device output a direct current stabilized voltage supply after being filtered, rectified and stabilized by the power supply output device. The leakage magnetic field can be collected in the air core reactor, and a certain voltage is generated to provide a power supply for the on-line detection device of the air core reactor.
Description
Technical Field
The invention relates to the technical fields of air core reactors, intelligent detection and direct current power supplies, in particular to a full-period alternating leakage magnetic field recovery type power supply device applied to an air core reactor.
Background
With the increasing application of air core reactors in power systems, online detection and protection devices have not been developed. The reason for this is that the power supply system for protecting the detection device cannot be designed. The battery is used as a power supply carrier, so that the maintenance amount of the device is increased, and the battery is difficult to use under extreme temperature and meteorological conditions; the magnetic energy taking by the running current is used as a power supply carrier, so that the abrasion of a lead can be increased, and the running of a design device can be influenced by the alternating magnetic field interference problem generated by the air core reactor, so that the problem of on-line detection of the electrification of the air core reactor is not solved.
The invention discloses a safe and reliable direct-current power supply device capable of continuously generating voltage by utilizing the characteristic that an air core reactor generates a space alternating leakage magnetic field. The leakage magnetic field collecting device can collect leakage magnetic fields inside the air core reactor and generate certain voltage so as to provide power supply for an on-line detection device of the air core reactor.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a full-period alternating leakage magnetic field recovery type power supply device applied to an air core reactor, which can collect leakage magnetic fields in the air core reactor and generate certain voltage to provide a power supply for an on-line detection device of the air core reactor.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a full-period alternating leakage magnetic field recovery type power supply device applied to an air-core reactor comprises a leakage magnetic field recovery device and a power supply output device.
The leakage magnetic field recovery device comprises four hook-shaped iron cores: the iron cores A, B, C and D are opposite in the shape of an integral X, and are arranged to recover magnetic fields in multiple directions; the magnetic field leakage recovery device comprises four hook-shaped iron cores, wherein the hook handles of the four hook-shaped iron cores are respectively wound with an induction coil, the hook-shaped head parts of the four iron cores are jointly wound with an induction coil, the five induction coils are electrically connected in series, the two ends of the series connection are voltage output ends of the magnetic field leakage recovery device, and the voltage output ends of the magnetic field leakage recovery device output a direct current stabilized voltage supply after being filtered, rectified and stabilized by the power supply output device.
In the four 'hook' -shaped iron cores, an iron core A and an iron core B are positioned at the upper half part of the 'X' -shaped iron core, an iron core C and an iron core D are positioned at the lower half part of the 'X' -shaped iron core, an air gap is reserved between the hook head end parts of the iron core A and the iron core B, and an air gap is reserved between the hook head end parts of the iron core C and the iron core D.
In the four hook-shaped iron cores, an insulation interval is reserved between the iron core at the upper half part and the iron core at the lower half part.
The four hook-shaped iron cores are formed by stacking low-loss silicon steel sheets, the arc parts are formed by stacking a plurality of pieces of silicon steel sheets in a continuous staggered mode, and the manufactured iron cores are formed by casting epoxy resin.
And the whole leakage magnetic field recovery device is poured by epoxy resin.
The power output device sequentially comprises a capacitor-inductor series filter circuit, a rectifying circuit and a voltage stabilizing circuit from an input end to an output end.
The voltage stabilizing circuit adopts LM7812 as a voltage stabilizing original, and the power output device outputs a direct-current 12V power supply to provide power supply voltage for the detection device of the air-core reactor.
Compared with the prior art, the invention has the beneficial effects that:
1. among the four 'hook' type iron cores, a single iron core generates a larger induction area in the smallest occupied area, the leakage magnetic recovery area is increased, and 4 iron cores are arranged into an 'X' shape for recovering magnetic fields in multiple directions. The induction coil is matched with the magnetic field to counteract the interference magnetic field; so that the alternating magnetic field generates alternating power supply voltage for providing power;
2. the air gap between the iron core A and the iron core B and the air gap between the iron core C and the iron core D have the function of generating stable voltage;
3. the five coils are connected in series, so that the voltage is superposed to generate a power supply voltage;
4. because alternating voltage waveforms are generated in the induction coil of the device and contain a certain amount of clutter components, a rectifying power supply design filtering loop firstly carries out incoming line filtering, a power supply output device is a rectifying power supply with high field strength anti-interference capability, and a capacitive-inductive series connection mode is adopted for filtering; the standard voltage stabilizing chip is used as a voltage stabilizing original; and the rectifier bridge circuit and 7812 serve as rectifier voltage stabilizing elements to realize 12V direct current power supply output and provide power supply voltage for the detection device of the air core reactor.
Drawings
FIG. 1 is a diagram of the structure of an "X" shape formed by four "hook" shaped cores of the present invention;
FIG. 2 is a diagram of a coil winding structure of the present invention;
FIG. 3 is a schematic diagram of a structure in which arc portions of a hook-shaped iron core are stacked by adopting a plurality of pieces in a continuous staggered manner;
FIG. 4 is a graph of electrical connections of five induction coils electrically connected in series to output alternating voltages;
fig. 5 is an electrical configuration diagram of the power output apparatus of the present invention.
In the figure: 1- "hook" type iron core 2-induction coil 3- "hook" head 4-air gap 1-A-iron core A1-B-iron core B1-C-iron core C1-D-iron core D2-A-induction coil A2-B-induction coil A2-C-induction coil C2-D-induction coil D5-silicon (silicon) steel sheet 6-epoxy resin.
Detailed Description
The following provides a detailed description of embodiments of the present invention.
As shown in fig. 1, a full-period alternating leakage magnetic field recovery type power supply device applied to an air-core reactor comprises a leakage magnetic field recovery device and a power supply output device.
The leakage magnetic field recovery device comprises four hook-shaped iron cores 1: the iron cores A, B, C and D are arranged in an integral X shape with the hook heads 3 of the four iron cores opposite to each other for recovering magnetic fields in multiple directions;
as shown in fig. 1-2, the handles of the four "hook" cores 1 are each wound with one induction coil 2 (2-a, 2-B, 2-C, 2-D), and the "hook" head portions of the four cores are commonly wound with one induction coil 2-E.
As shown in fig. 4, the five induction coils are electrically connected in series, the voltage output ends of the leakage magnetic field recovery device are V, and the voltage output end of the leakage magnetic field recovery device outputs a direct current stabilized voltage supply after filtering, rectifying and stabilizing the voltage by the power output device.
In the four hook-shaped iron cores 1, an iron core A and an iron core B are positioned at the upper half part of the X shape, an iron core C and an iron core D are positioned at the lower half part of the X shape, an air gap 4 is reserved between the hook head end parts of the iron core A and the iron core B, and an air gap 4 is reserved between the hook head end parts of the iron core C and the iron core D. The length of the air gap is L, the number of turns of the iron core is N, and the sectional area of the iron core is S. These three parameters determine the capacity and voltage of the energy harvesting device.
As shown in fig. 1, in the four "hook" type iron cores 1, an insulation space D is left between the upper half iron cores (2-a and 2-B) and the lower half iron cores (2-C and 2-D).
As shown in fig. 3, the four hook-shaped iron cores 1 are formed by stacking low-loss silicon (silicon) steel sheets 5, arc parts are formed by stacking a plurality of pieces of iron cores in a continuous staggered manner, and the manufactured iron cores are formed by casting 6 epoxy resin.
And the whole leakage magnetic field recovery device is poured by epoxy resin.
As shown in fig. 5, the power output apparatus sequentially includes a capacitor C, an inductor L, a rectifier 1ZL rectifier bridge, and a voltage stabilizing circuit LM7812 from an input end to an output end. The periphery of the power supply plate is covered with a stainless steel foil shielding layer for shielding electromagnetic interference due to the high magnetic field environment.
The voltage stabilizing circuit adopts LM7812 as a voltage stabilizing original, and the power output device outputs a direct-current 12V power supply to provide power supply voltage for the detection device of the air-core reactor.
The above examples are implemented on the premise of the technical scheme of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the above examples. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (4)
1. The full-period alternating leakage magnetic field recovery type power supply device applied to the air-core reactor is characterized by comprising a leakage magnetic field recovery device and a power supply output device;
the leakage magnetic field recovery device comprises four hook-shaped iron cores: the iron cores A, B, C and D are opposite in the shape of an integral X, and are arranged to recover magnetic fields in multiple directions; the magnetic field leakage recovery device comprises four hook-shaped iron cores, a power supply output device, a direct current stabilized voltage power supply, a magnetic field leakage recovery device, a magnetic field leakage detection device and a magnetic field leakage detection device, wherein the hook-shaped iron cores are respectively wound with an induction coil on hook handles of the four hook-shaped iron cores, an induction coil is wound on hook-shaped head parts of the four iron cores together, the five induction coils are electrically connected in series, and voltage output ends of the magnetic field leakage recovery device are connected in series;
in the four hook-shaped iron cores, an iron core A and an iron core B are positioned at the upper half part of an X shape, an iron core C and an iron core D are positioned at the lower half part of the X shape, an air gap is reserved between the hook head ends of the iron core A and the iron core B, and an air gap is reserved between the hook head ends of the iron core C and the iron core D;
in the four hook-shaped iron cores, an insulation interval is reserved between the iron core at the upper half part and the iron core at the lower half part;
the four hook-shaped iron cores are formed by stacking low-loss silicon steel sheets, the arc parts are formed by stacking a plurality of pieces of silicon steel sheets in a continuous staggered mode, and the manufactured iron cores are formed by casting epoxy resin.
2. The full-period alternating leakage magnetic field recovery type power supply device applied to the air-core reactor according to claim 1, wherein the whole leakage magnetic field recovery device is poured by epoxy resin.
3. The full-period alternating leakage magnetic field recovery type power supply device applied to the air-core reactor according to claim 1, wherein the power supply output device sequentially comprises an LC filter circuit, a rectifying circuit and a voltage stabilizing circuit from an input end to an output end.
4. The full-period alternating leakage magnetic field recovery type power supply device applied to the air-core reactor according to claim 3, wherein the voltage stabilizing circuit adopts LM7812 as a voltage stabilizing element, and the power supply output device outputs direct current 12V power to supply power supply voltage to the detection device of the air-core reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484604.2A CN109391041B (en) | 2018-12-06 | 2018-12-06 | Full-period alternating leakage magnetic field recovery type power supply device applied to air-core reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484604.2A CN109391041B (en) | 2018-12-06 | 2018-12-06 | Full-period alternating leakage magnetic field recovery type power supply device applied to air-core reactor |
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| Publication Number | Publication Date |
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| CN109391041A CN109391041A (en) | 2019-02-26 |
| CN109391041B true CN109391041B (en) | 2023-10-20 |
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Citations (8)
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| CN2286337Y (en) * | 1996-12-04 | 1998-07-15 | 朱彦鸣 | Three-phase input single-phase output voltage transformer |
| JP2008048580A (en) * | 2006-08-21 | 2008-02-28 | Sharp Corp | Electrical device |
| WO2013043065A2 (en) * | 2011-09-23 | 2013-03-28 | Eyales Bonifacio J | Electromagnetic energy-flux reactor |
| CN103597660A (en) * | 2011-04-15 | 2014-02-19 | 格马尔托股份有限公司 | Arrangement of antennas transmitting and receiving an electromagnetic field |
| CN103996500A (en) * | 2014-06-05 | 2014-08-20 | 刘林 | Winding type iron core and iron core 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 |
| CN104867662A (en) * | 2015-05-22 | 2015-08-26 | 佛山市中研非晶科技股份有限公司 | Novel electric reactor |
| CN209170056U (en) * | 2018-12-06 | 2019-07-26 | 国网辽宁省电力有限公司鞍山供电公司 | Complete period alternation magnetic flux leakage reclaiming type power supply device applied to air reactor |
-
2018
- 2018-12-06 CN CN201811484604.2A patent/CN109391041B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2286337Y (en) * | 1996-12-04 | 1998-07-15 | 朱彦鸣 | Three-phase input single-phase output voltage transformer |
| JP2008048580A (en) * | 2006-08-21 | 2008-02-28 | Sharp Corp | Electrical device |
| CN103597660A (en) * | 2011-04-15 | 2014-02-19 | 格马尔托股份有限公司 | Arrangement of antennas transmitting and receiving an electromagnetic field |
| WO2013043065A2 (en) * | 2011-09-23 | 2013-03-28 | Eyales Bonifacio J | Electromagnetic energy-flux reactor |
| CN103996500A (en) * | 2014-06-05 | 2014-08-20 | 刘林 | Winding type iron core and iron core 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 |
| CN104867662A (en) * | 2015-05-22 | 2015-08-26 | 佛山市中研非晶科技股份有限公司 | Novel electric reactor |
| CN209170056U (en) * | 2018-12-06 | 2019-07-26 | 国网辽宁省电力有限公司鞍山供电公司 | Complete period alternation magnetic flux leakage reclaiming type power supply device applied to air reactor |
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| CN109391041A (en) | 2019-02-26 |
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