CN107968390A - A kind of Lightning Electromagnetic Pulse energy absorption filtering system - Google Patents

A kind of Lightning Electromagnetic Pulse energy absorption filtering system Download PDF

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Publication number
CN107968390A
CN107968390A CN201711059819.5A CN201711059819A CN107968390A CN 107968390 A CN107968390 A CN 107968390A CN 201711059819 A CN201711059819 A CN 201711059819A CN 107968390 A CN107968390 A CN 107968390A
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CN
China
Prior art keywords
electromagnetic pulse
pulse energy
distribution cabinet
power distribution
lightning
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CN201711059819.5A
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Chinese (zh)
Inventor
李宝华
孔祥辉
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李宝华
孔祥辉
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Application filed by 李宝华, 孔祥辉 filed Critical 李宝华
Priority to CN201711059819.5A priority Critical patent/CN107968390A/en
Publication of CN107968390A publication Critical patent/CN107968390A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/042Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01Arrangements for reducing harmonics or ripples
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40Arrangements for reducing harmonics

Abstract

The present invention provides a kind of Lightning Electromagnetic Pulse energy absorption filtering system, the system is applied to electric power system, and the electric power system includes high-tension apparatus end, power distribution cabinet, distribution box, it is characterised in that the Lightning Electromagnetic Pulse energy absorption filtering system includes:Electromagnetic pulse energy absorber between the high-tension apparatus end and the power distribution cabinet and between the power distribution cabinet and the distribution box;It is installed in parallel the capacitive filter between the firewire and ground wire of the power distribution cabinet and between the firewire and ground wire of the distribution box;Electric charge register at the power distribution cabinet ground wire and at the distribution box ground wire.Solve in the prior art due to there is no the method for convenient to carry out, effect more preferably pre- lightning protection electromagnetic pulse in whole electric power system, caused by there are the problem of security risk for electronic equipment in electric power system under thunder and lightning environment.

Description

A kind of Lightning Electromagnetic Pulse energy absorption filtering system
Technical field
The present invention relates to resisting the inductive thunderbolt field, including a kind of Lightning Electromagnetic Pulse energy absorption filtering system.
Background technology
In some thunders and lightnings area occurred frequently, the momentary pulse electricity produced due to lightning induction in the transmission line of electric system Height is pressed through, the electrical equipment in electric system can be impacted.For example, when thundercloud discharges above building, lightning current Larger lightning current is produced on passage, induced overvoltage will be produced on the cable and signal wire near building, these Since the induced overvoltage that lightning induction produces can cause the damage of microelectronic device, and protecting electrical power system and control unit Malfunction.In recent years, with the extensive use for the information system being made of mass data equipment and precision instrument, because of lightning induction Damage the phenomenon also cumulative year after year of electrical equipment.
According to being provided in thunder-strike prevention standard GB50057--2010 in 4.2.3.2:When overhead line is converted into one section of metal armouring electricity Cable or jacketed cable wear steel pipe directly buried introducing when, general buried length needs generally all more than 10 meters, and inductance is bigger Want buried length longer, according to measurement of the Guangdong Province lightning protection center to this lightning protection measures, even if it is buried that cable is worn iron pipe 52 meters, its minification to Lightning Electromagnetic Pulse also only have 4.4%--7.2% (《Electric power network technique》The 2nd phase of volume 35), thus may be used It is limited to see that this method acts on lightning protection electromagnetic pulse.It is moreover more difficult to already installed electric power system, practice of construction.
Therefore, it is hidden to the safety of Techniques for Electronic Device in Power System can not to eliminate Lightning Electromagnetic Pulse well for the prior art Suffer from, the effect that the whole electric power system of good protection is attacked by Lightning Electromagnetic Pulse can not be played.
The content of the invention
In view of this, the present invention is directed to propose a kind of Lightning Electromagnetic Pulse energy absorption filtering system, to solve existing skill Method in art due to not forming complete convenient pre- resisting the inductive thunderbolt in whole electric power system, caused by thunder and lightning ring There are the problem of security risk for electronic equipment in electric power system under border.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
A kind of Lightning Electromagnetic Pulse energy absorption filtering system, the system are applied to electric power system, the electric power system Including high-tension apparatus end, power distribution cabinet, distribution box, it is characterised in that the electromagnetic pulse energy, which absorbs filtering system, to be included:Installation Electromagnetic pulse energy between the high-tension apparatus end and the power distribution cabinet and between the power distribution cabinet and the distribution box Absorber;It is installed in parallel between the firewire and ground wire of the power distribution cabinet and between the firewire and ground wire of the distribution box Capacitive filter;Electric charge register at the power distribution cabinet ground wire and at the distribution box ground wire.Solve existing Have due to there is no the method for convenient to carry out and efficient pre- lightning protection electromagnetic pulse in whole electric power system in technology, and cause There are the problem of security risk for electronic equipment in electric power system under thunder and lightning environment.
Preferably, the high-tension apparatus end includes:High voltage transmission line, high-tension transformer, low voltage transmission line.
Preferably, the electromagnetic pulse energy absorber is ring-shaped device made of high permeability material.
Preferably, the firewire of the high-tension cable, the high-tension transformer and the low-voltage cable passes through the electromagnetism arteries and veins The loop configuration for rushing acceptor of energy is connected with the firewire of the power distribution cabinet;And the firewire of the power distribution cabinet passes through the electromagnetism The loop configuration of pulse energy absorber is connected with the firewire of the distribution box.
Preferably, the capacitive filter is arranged in a closed vessel by polarity free capacitor and is made.
Preferably, the electric charge register is made of at least one grounding plate.
Preferably, the grounding plate is the preset range for the ground wire that the capacitive filter is arranged on by metallic plate Inside it is made.
Preferably, the electric charge register ground wire length is not more than ten meters.
The embodiment of the present invention passes through between electric system mesohigh end and power distribution cabinet and between power distribution cabinet and distribution box Installation electromagnetic pulse energy absorber, and further between the firewire and ground wire of power distribution cabinet and the firewire of distribution box with Capacitive filter is installed in parallel between ground wire, and the electric charge installed at power distribution cabinet ground wire and at distribution box ground wire is posted Storage, realizes the effect filtered to the electromagnetic pulse energy multistage absorption that thunder and lightning produces, it is therefore prevented that electromagnetism in electric system Infringement of the pulse energy to the electrical equipment in electric system.
Brief description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of composition schematic diagram of Lightning Electromagnetic Pulse energy absorption filtering system described in the embodiment of the present invention;
Fig. 2 is the structure chart of the electromagnetic pulse energy absorber described in the embodiment of the present invention;
Fig. 3 is the composition and scheme of installation of the capacitive filter described in the embodiment of the present invention;
C is polarity free capacitor;A, B, C are phase line (live line);N is the neutral conductor (ground wire);PE is protective wire (ground wire);
1 electromagnetic pulse energy absorber;2 high-tension apparatus ends;3 electric charge registers;4 capacitive filters;5 power distribution cabinets.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
Embodiment one
With reference to Fig. 1, the composition for a kind of Lightning Electromagnetic Pulse energy absorption filtering system described in the embodiment of the present invention shows It is intended to, the system is applied to electric power system, and the electric power system includes high-tension apparatus end, power distribution cabinet, distribution box, the electromagnetism Pulse energy absorbs filtering system and specifically includes:
Between the high-tension apparatus end 2 and the power distribution cabinet 5 and the power distribution cabinet 5 (is schemed with the distribution box Be not drawn into 1) between electromagnetic pulse energy absorber 1;
It is installed in parallel between firewire A, B, C and ground wire PE of the power distribution cabinet 5 and the distribution box (is not drawn in Fig. 1 Go out) firewire A, B, C and ground wire PE between capacitive filter 4;
The electric charge at ground wire PE (is not drawn into) in Fig. 1 at the 5 ground wire PE of power distribution cabinet and in the distribution box Register 3.
In practical applications, Lightning Electromagnetic Pulse majority is to invade electric power system by high-tension line in power supply, and is passed through It is experimentally confirmed that Lightning Electromagnetic Pulse has just invaded electric power system before power distribution cabinet, and since Lightning Electromagnetic Pulse is from height Link intrusion probability very little between pressure transformer and power distribution cabinet, therefore can conclude that Lightning Electromagnetic Pulse is by high-voltage power transmission line road (overhead line) enters high-tension transformer, and by the first and distribution capacity of high-tension transformer be coupled to it is secondary produce, in order to Eliminate infringement of the Lightning Electromagnetic Pulse to electronic equipment in electric power system, first electric system high-tension apparatus end and power distribution cabinet it Between installation level-one filtering system formed by electromagnetic pulse energy absorber, polarity free capacitor, grounding plate (be similar to T-shaped filter Ripple device), with initial absorption, filter out Lightning Electromagnetic Pulse.
Further, level-one filtering system is installed between high-tension apparatus end and power distribution cabinet, be able to not may be completely eliminated Infringement of the Lightning Electromagnetic Pulse to electric power system, so, in order to completely prevent infringement of the Lightning Electromagnetic Pulse to electric power system, On the circuit of power distribution cabinet to distribution box second level filtering system can be installed again.
In the specific implementation, filtering system is by one or more electromagnetic pulse energy absorbers installed in high-pressure side, installation Capacitive filter made of a polarity free capacitor or multiple polarity free capacitors on power distribution cabinet firewire and installed in distribution Tile ground or buried grounding plate (electric charge register) at cabinet ground wire, metallic plate tiling ground or embedment underground, Ground capacity is formed with the earth.
Alternatively, the high-tension apparatus end includes:High voltage transmission line, high-tension transformer, low voltage transmission line.
Alternatively, the electromagnetic pulse energy absorber 1 is ring-shaped device made of high permeability material.
Alternatively, firewire A, B, C of the high-tension cable, the high-tension transformer and the low-voltage cable pass through the electricity The loop configuration of magnetic field impulse acceptor of energy 1 is connected with firewire A, B, C of the power distribution cabinet 5;And the firewire of the power distribution cabinet 5 A, B, C through loop configuration and the distribution box (being not drawn into Fig. 1) of the electromagnetic pulse energy absorber 1 firewire A, B, C is connected.
In practical applications, as shown in Fig. 2, electromagnetic pulse energy absorber is ring-shaped device made of high permeability material, Specifically, the electromagnetic pulse energy absorber specifically includes:Coil 103, cable 104, resistance 102 and the ring for forming closed magnetic circuit Shape iron core, the coil 103 are wound on a part of annular core 101 in described annular core two parts after dicing, line 103 both ends connection resistance 102 is enclosed, wherein, the annular core is cut into two parts according to central axial plane;When installation signal When line or power cord or cable, the signal wire or power cord or cable are first placed in the annular core after cutting In, then another part annular core 105 after cutting with a part of annular core 101 after cutting dock and forms closure The annular core of magnetic circuit.
In practical applications, at high-tension apparatus end and power distribution cabinet installation electromagnetic pulse energy absorber, by high voltage power transmission Line, high-tension transformer, three firewires A, B, C of low voltage transmission line penetrate the electromagnetic pulse energy absorber, which makes confession Electric system forms an inductance to Lightning Electromagnetic Pulse here.Meanwhile the absorber also has energy absorption, wherein, on It is related with area of core section in the absorber to state inductance value, iron core can be made big, multiple iron cores can also be worn at the same time Enter to use, so that inductance value is more than 10mh (equivalent to the inductance value of 30 meters of iron pipes).Similarly, between power distribution cabinet and distribution box Installation electromagnetic pulse energy absorber when, and by three firewires A, B, C of power distribution cabinet penetrate the electromagnetic pulse energy absorb Device.
Alternatively, the capacitive filter 4 is arranged in a closed container by polarity free capacitor C is made.
In practical applications, as shown in figure 3, after installation is complete electromagnetic pulse energy absorber, three at power distribution cabinet Root firewire installs a capacitive filter or the capacitive filter made of multiple polarity free capacitors respectively over the ground, and it is in parallel Between firewire and ground wire.Specifically, multiple polarity free capacitor devices can be made in a closed vessel, the closed vessel It can be made of metal, can also be made of other materials, then the capacitive filter is fixed in power distribution cabinet, is connected in parallel on fire Between line and ground wire.
Alternatively, the electric charge register is made of at least one grounding plate.
Alternatively, the grounding plate be by metallic plate be arranged on the capacitive filter 4 ground wire PE it is default In the range of be made.
Alternatively, the electric charge register ground wire length is not more than ten meters.
In practical applications, as shown in Figure 1, usually power distribution cabinet from grounding body farther out, only consider ground resistance without considering In the case of earthing reactance, power distribution cabinet is often caused to inductance is formed between grounding body, the electric charge for causing lightening pulse to produce Or electricity cannot smoothly enter ground and continue to impact electric power system in time, and since grounding plate can deposit high frequency arteries and veins Rush electric charge or electricity, so, the system near power distribution cabinet, close to be incorporated on the ground near capacitive filter, reinforced concrete Tile sufficiently large (2 square metres -10 square metres) metallic plate of one or more area on the floor of soil or on wall, by metallic plate With being connected with shortest ground wire at capacitive filter ground connection and (being not more than 10 meters), metallic plate tiling ground or embedment underground, with The earth forms capacitance --- ground capacity.Purpose is that lightening pulse electric charge or electricity are entered the metallic plate by capacitive filter Upper temporarily storage, then slow release plays the cushioning effect of an electric charge or electricity to the earth, the metallic plate again.
Wherein, electric charge register can be made of a sufficiently large metallic plate, can also be connected to multiple metallic plates Together, or by multiple metallic plates it is separately formed, and metallic plate can tile ground, on wall or embedment underground, according to the actual requirements Installation is adjusted, the embodiment of the present invention is not any limitation as.
The purpose of installation electric charge register is, increases the ground connection polar plate area of grounding body and the earth, if grounding body with Power distribution cabinet it is closer to the distance, can on grounding body weld plate, increase and the earthing pole area of the earth, or selection contact area The more grounding body of larger, interim storage electric charge or electricity, increases ground capacity.
Wherein, electric charge register is not limited to be made of metallic plate, can be can arbitrarily store electric charge or electricity material or Device is made, and the embodiment of the present invention is not any limitation as this.
In practical application, the electromagnetic pulse energy absorber installed in electric power system can absorb, stop and be made by thunder and lightning Into electric power system in the of a relatively high pulses generation of unnecessary frequency electricity or electric charge, so installing capacitance additional in power distribution cabinet Wave filter causes unnecessary electric charge and electricity and then steady voltage to further filtering thunder and lightning, and in electric power system, due to The ground wire of power distribution cabinet is longer, and the inductance of formation is bigger, causes the pulse electric charge that thunder and lightning produces in electric power system to pass through The ground wire of power distribution cabinet enters ground in time, so cannot play and should have by above-mentioned electromagnetic pulse energy absorber and capacitive filter Effect, thunder and lightning cannot also be completely eliminated to be influenced caused by electric power system, so the default model of the ground wire in power distribution cabinet Interior installation grounding plate is enclosed, to cache unnecessary electricity or electric charge, and is allowed to slowly enter ground, reduces to the bad of electric power system Influence.
Further, the filtering system that level-one foregoing description is installed in electric power system is not enough to absorb Lightning Electromagnetic Pulse Energy, then just in power distribution cabinet to above-mentioned filtering system is installed between distribution box again, form a similar π types filtering system therewith System.
In practical application, confirmed through overtesting, the above-mentioned Lightning Electromagnetic Pulse energy absorption filter for being mounted with grounding plate Wave system is united, its minification to Lightning Electromagnetic Pulse is up to more than 50%, in the multistage Lightning Electromagnetic Pulse energy absorption filter of installation After wave system system, its minification to Lightning Electromagnetic Pulse can reach more than 70%, buried again relative to cable is worn iron pipe Method, it is efficient and convenient to carry out.
To sum up, device polarity free capacitor or inductance can play filter action in electric system, but in this application, Profit is used in the power system the electromagnetic pulse energy absorber of installation and polarity free capacitor forms T-shaped or π type filter networks, and The device grounding plate near the capacitive filter that polarity free capacitor is formed, enhances T-shaped or π type filtering systems filtering work( Can, it can more effectively absorb, filter out in electric power system due to electromagnetic pulse caused by thunder and lightning.
Lightning Electromagnetic Pulse energy absorption filtering system provided by the present invention, is substantially in electric power system, embedded in Pulse bandwidth filtering system, forms level-one filtering system by acceptor of energy, polarity free capacitor, grounding plate and (is similar to T-shaped filtering Device), first order insertion is installed at power distribution cabinet and before, can be installed again between distribution box or electrical equipment in power distribution cabinet The filtering system, forms two stage filter system, for absorbing in electric power system due to caused by thunder and lightning with filtering system before Electromagnetic pulse, has eliminated its harmful effect to electric power system.
In conclusion Lightning Electromagnetic Pulse energy absorption filtering system installation side in electric system provided by the present invention Just, and it can effectively absorb and filter out Lightning Electromagnetic Pulse energy, and then prevent Lightning Electromagnetic Pulse to set electronics in electric system The beneficial effect of standby infringement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.

Claims (8)

1. a kind of Lightning Electromagnetic Pulse energy absorption filtering system, the system is applied to electric power system, the electric power system bag Include high-tension apparatus end, power distribution cabinet, distribution box, it is characterised in that the Lightning Electromagnetic Pulse energy absorption filtering system includes:
Electromagnetism between the high-tension apparatus end and the power distribution cabinet and between the power distribution cabinet and the distribution box Pulse energy absorber;
It is installed in parallel the capacitance between the firewire and ground wire of the power distribution cabinet and between the firewire and ground wire of the distribution box Wave filter;
Electric charge register at the power distribution cabinet ground wire and at the distribution box ground wire.
2. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 1, it is characterised in that
The high-tension apparatus end includes:High voltage transmission line, high-tension transformer, low voltage transmission line.
3. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 1, it is characterised in that
The electromagnetic pulse energy absorber is ring-shaped device made of high permeability material.
4. the Lightning Electromagnetic Pulse energy absorption filtering system according to Claims 2 or 3, it is characterised in that
The firewire of the high-tension cable, the high-tension transformer and the low-voltage cable passes through the electromagnetic pulse energy absorber Loop configuration be connected with the firewire of the power distribution cabinet;And the firewire of the power distribution cabinet is absorbed through the electromagnetic pulse energy The loop configuration of device is connected with the firewire of the distribution box.
5. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 1, it is characterised in that
The capacitive filter is arranged in a closed vessel by polarity free capacitor and is made.
6. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 1, it is characterised in that
The electric charge register is made of at least one grounding plate.
7. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 6, it is characterised in that
The grounding plate is arranged in the preset range of the ground wire of the capacitive filter by metallic plate and is made.
8. Lightning Electromagnetic Pulse energy absorption filtering system according to claim 7, it is characterised in that
The electric charge register ground wire length is not more than ten meters.
CN201711059819.5A 2017-11-01 2017-11-01 A kind of Lightning Electromagnetic Pulse energy absorption filtering system Pending CN107968390A (en)

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CN201711059819.5A CN107968390A (en) 2017-11-01 2017-11-01 A kind of Lightning Electromagnetic Pulse energy absorption filtering system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114678850A (en) * 2022-03-15 2022-06-28 昆明理工大学 Magnetic ring device for suppressing lightning waves

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103515943A (en) * 2013-09-27 2014-01-15 天津神龙兴业科技有限公司 Minitype intelligent thunder protective system
CN203747403U (en) * 2013-12-26 2014-07-30 李宝华 Two-in-one lightning electromagnetic pulse energy absorber
CN204789868U (en) * 2015-06-12 2015-11-18 广西电网有限责任公司电力科学研究院 Distribution cable electricity status monitoring device
CN205724904U (en) * 2016-03-07 2016-11-23 北京服装学院 A kind of converter comprising PWM convertor circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103515943A (en) * 2013-09-27 2014-01-15 天津神龙兴业科技有限公司 Minitype intelligent thunder protective system
CN203747403U (en) * 2013-12-26 2014-07-30 李宝华 Two-in-one lightning electromagnetic pulse energy absorber
CN204789868U (en) * 2015-06-12 2015-11-18 广西电网有限责任公司电力科学研究院 Distribution cable electricity status monitoring device
CN205724904U (en) * 2016-03-07 2016-11-23 北京服装学院 A kind of converter comprising PWM convertor circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114678850A (en) * 2022-03-15 2022-06-28 昆明理工大学 Magnetic ring device for suppressing lightning waves

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Application publication date: 20180427