CN105243176A - Graphic analysis method for optimized configuration of lightning arrester of 110kV/220kV power transmission line - Google Patents
Graphic analysis method for optimized configuration of lightning arrester of 110kV/220kV power transmission line Download PDFInfo
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Abstract
The invention discloses a graphical analysis method for optimally configuring lightning arresters for a 110kV/220kV power transmission line, which comprises the steps of firstly simulating a key section of the power transmission line by combining parameters of the power transmission line and parameters of a power transmission line tower, then calculating a lightning current critical value causing counterattack flashover, comparing lightning protection effects before and after configuring the lightning arresters and under different lightning arrester configuration densities, finally recording flashover conditions of the tower in a table mode according to different lightning arrester configuration modes and different lightning arrester positions, and visually observing the probability of the lightning arrester flashover of the section of line so as to obtain the optimal configuration of the lightning arresters of the 110kV and 220kV power transmission lines. The invention belongs to a statistical analysis method for graphically analyzing flashover conditions of towers, is suitable for statistical analysis of lightning flashover of lines with different span lengths, different lightning stroke points and different lightning arrester configuration densities and modes, is visual and easy to understand, is simple and clear, and is easy to apply and popularize.
Description
Technical field
The present invention relates to grid power transmission circuit system thunder defending protection field, refer in particular to a kind of signature analysis of 110kV/220kV transmission line of electricity optimization collocation lightning arrester.
Background technology
In electric system, the configuration of lightning arrester directly affects system overvoltage and Insulation Coordination, plays vital effect to the safe and stable operation of electric system.Lightning arrester lower than insulation tolerance, avoids lightning stroke flashover by maintaining voltage between transmission line insulator.Generally; for the transmission line not having shielding line; lightning arrester on each insulator position is just equivalent to alternative shielding line and carries out protection work; for the transmission line of electricity having shielding line; leakage conductor is mainly used for the remote districts that line walking is difficult or ground resistivity is higher, to improve the reliability of power supply.
Although had many assessments for the lightning strike protection of transmission line of electricity, not yet quantitatively clear and definite on the installation site of transmission line of electricity lightning protection lightning arrester.Traditional Allocation of Lightning Arrester scheme is generally rule of thumb option and installment or full phase configuration, most do not fully take into account actual shaft tower design feature and orographic factor under lightning protection effect and the economy problems of allocation plan, there is certain blindness.Optimization collocation lightning arrester, both can make each electrical equipment of transmission line of electricity all be in protection domain, more reasonably over-voltage leave enough insulation margins, ensured the reliability of safe operation, also reached resource and reasonable disposition economically.
The influencing factor of Allocation of Lightning Arrester to transmission line of electricity lightning protection properties is very complicated, and its principal element is that different, tower-footing resistance not equal of spacing of the difference of quantity, shaft tower and lightning arrester installed by each tower lightning arrester.For a given thunderbolt event, we are necessary to propose a kind of signature analysis to estimate lightning stroke flashover, calculate the probability of counterattack flashover, to reach the optimization collocation of electric transmission line lightning arrester.
Summary of the invention
The object of the invention is to overcome the system of selection of existing electric transmission line lightning arrester allocation position not enough not intuitively, a kind of signature analysis of 110kV/220kV transmission line of electricity optimization collocation lightning arrester is proposed, belong to a kind of statistical analysis technique of graphical analysis shaft tower flashover situation, be applicable to the circuit lightning stroke flashover statistical study of different span length, different lightning strike spot, different Allocation of Lightning Arrester mode.
For achieving the above object, technical scheme provided by the present invention is: a kind of signature analysis of 110kV/220kV transmission line of electricity optimization collocation lightning arrester, first, in conjunction with the parameter of transmission line of electricity and electric power line pole tower, electromagnetic transients program ATP is adopted to emulate transmission line of electricity critical section, then the thunder-strike current critical value causing strikeing back flashover is calculated, lightning protected effect before and after comparative arrangement lightning arrester and under different configuration density, last for different Allocation of Lightning Arrester density, in the mode of form, insulator generation flashover situation under the corresponding shaft tower of visual record, lightning flashover rate directly can be observed to obtain the optimization collocation of 110kV and 220kV electric transmission line lightning arrester by the percentage observing overall form shared by flashover form.
The signature analysis of 110kV/220kV transmission line of electricity optimization collocation lightning arrester of the present invention, comprises the following steps:
1) tower structure, wire type, lightning conducter antenna height and angle, span, insulator parameter, transmission line length and tangent tower and these transmission line parameters of anchor support number are utilized to set up electromagnetic transient simulation model;
2) transmission line of electricity of selected particular range, adopts electromagnetic transients program ATP to emulate, and calculates the thunder-strike current critical value causing strikeing back flashover;
3) when Allocation of Lightning Arrester density is not identical, as every the full phase configuration of a base shaft tower or every the full phase configuration of two base shaft towers, to suppose to be struck by lightning on the different shaft towers of circuit and span central authorities lightning conducter time lightning current all exceed the critical value of counterattack lightning current, with the position that counterattack flashover occurs under the table labelling of correspondence, and a situation arises to analyze the flashover of each shaft tower or lightning conducter span central authorities successively;
4) according to the flashover of different shaft tower in the different configuration density situation of lightning arrester, a situation arises, draws corresponding form, intuitively observes the protected effect of lightning arrester by the percentage of whole form shared by the form that represents flashover;
5) according to the parameter such as probability, thunderstorm day that flashover percent is multiplied by lightning current and occurs more than the lightning current critical value calculated in ATP model, namely the counterattack thunder tripping operation number of times of transmission line of electricity under different Allocation of Lightning Arrester mode can be calculated, the final optimization collocation obtaining 110kV and 220kV electric transmission line lightning arrester.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1, the parameter of foundation transmission line of electricity and shaft tower; for the situation that thunderbolt shaft tower and thunderbolt span this two kinds of 110kV and 220kV transmission line lightning strokes tripping operation probability of happening central are maximum; adopt different Allocation of Lightning Arrester modes; analyze the situation that shaft tower flashover occurs; and draw corresponding form; can know the protected effect directly observing out lightning arrester, can make the more scientific economical rationality of Allocation of Lightning Arrester, the specific aim that leakage conductor is installed is stronger.
2, by signature analysis, can provide the statistics of easier visualization more visualize for leakage conductor configuration, can electric transmission line lightning arrester be instructed configure, effectively minimizing lightning arrester quantity, produces obvious economic and social benefit more scientificly.
Spacing crossed over by the shaft tower of 3, different transmission lines of electricity is not identical, adopt signature analysis, it can be the configuration that more specific transmission lines of electricity carry out lightning arrester, the method is a kind of universal method, only need change corresponding parameter, namely can be applicable to, in different circuits, to there is blanket value.
4, after obtaining lightning stroke flashover probability on signature analysis basis, by being multiplied by the parameter such as corresponding thunderstorm day and amplitude of lightning current probability, the lightning stroke flashover number of times that whole section of circuit occurs can be calculated, result of calculation is clear, and the lightning flashover rate that can be the overhead transmission line being configured with lightning arrester from now on calculates for referencial use.
Accompanying drawing explanation
Fig. 1 is lightning stroke flashover probability statistics figure after a base shaft tower three phase arrangement lightning arrester.
Fig. 2 is lightning stroke flashover probability statistics figure after two base shaft tower three phase arrangement lightning arresters.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The signature analysis of the 110kV/220kV transmission line of electricity optimization collocation lightning arrester described in the present embodiment, belong to a kind of statistical analysis technique of graphical analysis shaft tower flashover situation, first, in conjunction with the parameter of transmission line of electricity and electric power line pole tower, electromagnetic transients program ATP is adopted to emulate transmission line of electricity critical section, then the thunder-strike current critical value causing strikeing back flashover is calculated, lightning protected effect under comparative arrangement lightning arrester different densities, last for different Allocation of Lightning Arrester density and different thunderbolt positions, in the mode of form, visual record shaft tower generation flashover situation, direct vision this section of circuit generation lightning stroke flashover probability is to obtain the optimization collocation of 110kV and 220kV electric transmission line lightning arrester.It comprises the following steps:
1) tower structure, wire type, lightning conducter antenna height and angle, span, insulator parameter, transmission line length and tangent tower and these transmission line parameters of anchor support number are utilized to set up electromagnetic transient simulation model;
2) transmission line of electricity of selected particular range, adopts electromagnetic transients program ATP to emulate, and calculates the thunder-strike current critical value causing strikeing back flashover;
3) according to protection feature curve and the actuation time of lightning arrester, suppose that the transmission speed of lightning wave on wire is the light velocity, calculate the maximum protection scope of lightning arrester.
4) by complete for lightning arrester phase configuration on different shaft towers, as being configured every a base shaft tower or every two base shaft towers.To suppose to be struck by lightning on the different shaft towers of circuit and span central authorities lightning conducter time, according to the above-mentioned protection of arrester distance calculated, a situation arises for the flashover of each shaft tower of statistical study;
5) according to the flashover of shaft tower different under each configuration mode, a situation arises; draw corresponding form; the protected effect of direct vision lightning arrester the lightning stroke flashover probability of transmission line of electricity under more different Allocation of Lightning Arrester mode; obtain the optimization collocation of 110kV and 220kV electric transmission line lightning arrester, configuring every a shaft tower as shown in Figure 1 configures a lightning arrester every two shaft towers shown in lightning arrester and a Fig. 2.
Fig. 1 with Fig. 2 represents the lightning stroke flashover probability statistics figure under the different configuration density of lightning arrester respectively, supposes that the protection domain of lightning arrester is less than half span in figure, for simplifying statistical work, if the span between different shaft tower is equidistant.As shown in Figure 1, in 9 selected base shaft towers, 2,4,6, No. 8 shaft towers have all installed leakage conductor on three-phase, when exceeding lightning surge amplitude that insulator bears and acting on No. 3 shaft towers, because the maximum protection scope of lightning arrester is less than half span, therefore can there is flashover in No. 3 shaft tower place insulators; When exceeding lightning surge amplitude that insulator bears and acting in the middle of No. 3 shaft towers and No. 4 shaft towers, because the maximum protection scope of lightning arrester is less than half span, therefore still can there is flashover in No. 3 shaft tower place insulators.As shown in the figure, the percentage of whole form grid number shared by the grid number that flashover occurs statistics, can either indicate the probability of whole piece circuit generation flashover in this Allocation of Lightning Arrester situation, be equally applicable to Fig. 2.When needing to change the protection domain of lightning arrester or the parameter such as configuration mode, shaft tower spacing of lightning arrester, corresponding form can be made, the lightning flashover rate of this circuit can be calculated by the method introduced.
In sum; the inventive method is guard space based on lightning arrester and electromagnetic transients program (ATP); take signature analysis as means; choose different lightning strike spots under the situation that span is different between shaft tower respectively, and clearly propose the optimization collocation of 110kV and 220kV electric transmission line lightning arrester.This compared to existing technology; the inventive method is visual and understandable; simple and clear; under energy available protecting circuit prerequisite, save the installation quantity of lightning arrester, and the relevant parameter of form can be changed under different line parameter circuit values; obtain the best configuration density of lightning arrester under specific line condition; have blanket characteristic, the configuration for scientific guidance electric transmission line lightning arrester provides certain reference, is easy to application and promotes.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (2)
1. the signature analysis of a 110kV/220kV transmission line of electricity optimization collocation lightning arrester, it is characterized in that: first, in conjunction with the parameter of transmission line of electricity and electric power line pole tower, electromagnetic transients program ATP is adopted to emulate transmission line of electricity critical section, then the thunder-strike current critical value causing strikeing back flashover is calculated, lightning protected effect before and after comparative arrangement lightning arrester, last for different Allocation of Lightning Arrester modes and different thunderbolt positions, in the mode of form, visual record shaft tower generation flashover situation, whether direct vision there is lightning stroke flashover to obtain the optimization collocation of 110kV and 220kV electric transmission line lightning arrester.
2. the signature analysis of a kind of 110kV/220kV transmission line of electricity optimization collocation lightning arrester according to claim 1, is characterized in that: comprise the following steps:
1) tower structure, wire type, lightning conducter antenna height and angle, span, insulator parameter, transmission line length and tangent tower and these transmission line parameters of anchor support number are utilized to set up electromagnetic transient simulation model;
2) transmission line of electricity of selected particular range, adopts electromagnetic transients program ATP to emulate, and calculates the thunder-strike current critical value causing strikeing back flashover;
3) when Allocation of Lightning Arrester density is not identical, as every the full phase configuration of a base shaft tower or every the full phase configuration of two base shaft towers, to suppose to be struck by lightning on the different shaft towers of circuit and span central authorities lightning conducter time lightning current all exceed the critical value of counterattack lightning current, with the position that counterattack flashover occurs under the table labelling of correspondence, and a situation arises to analyze the flashover of each shaft tower or lightning conducter span central authorities successively;
4) according to the flashover of different shaft tower in the different configuration density situation of lightning arrester, a situation arises, draws corresponding form, intuitively observes the protected effect of lightning arrester by the percentage of whole form shared by the form that represents flashover;
5) probability being multiplied by lightning current and occurring more than the lightning current critical value calculated in ATP model according to flashover percent, thunderstorm day these parameters, namely the counterattack thunder tripping operation number of times of transmission line of electricity under different Allocation of Lightning Arrester mode can be calculated, the final optimization collocation obtaining 110kV and 220kV electric transmission line lightning arrester.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229959A (en) * | 2016-08-12 | 2016-12-14 | 中国电力科学研究院 | A kind of extra high voltage direct current transmission line Overvoltage suppressing method |
| CN108110721A (en) * | 2017-11-24 | 2018-06-01 | 国网北京市电力公司 | Arrester installation method and device |
| CN108846229A (en) * | 2018-06-27 | 2018-11-20 | 广东电网有限责任公司电力科学研究院 | A kind of distribution line rocket triggered lightning test method of arrester differentiation configuration |
| CN109002634A (en) * | 2018-08-01 | 2018-12-14 | 温州大学 | Overhead distributionnetwork arrester installation site optimization method based on hybrid simulation technology |
| CN109726523A (en) * | 2019-03-04 | 2019-05-07 | 广东电网有限责任公司 | A kind of selection method and device of arrester installation site |
| CN110889555A (en) * | 2019-11-27 | 2020-03-17 | 国网山东省电力公司滨州供电公司 | Method and device for generating lightning stroke disconnection protection scheme of overhead line |
| CN112653063A (en) * | 2020-12-17 | 2021-04-13 | 长沙理工大学 | 10kV overhead line lightning protection method used by matching of coupling ground wire and lightning arrester |
| CN114722340A (en) * | 2022-04-19 | 2022-07-08 | 国网四川省电力公司电力科学研究院 | Power distribution network power failure range analysis method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272040A (en) * | 2008-04-28 | 2008-09-24 | 华北电力科学研究院有限责任公司 | Method for electric power line lightning protection configuration by using electric network lightning disturbance distribution |
| US20100286954A1 (en) * | 2008-04-21 | 2010-11-11 | Wuhan NaRi Limited Company of State Grid Electric Power Research Institute | Method for determining lightning hazard distribution of power network |
| CN103490367A (en) * | 2013-01-29 | 2014-01-01 | 四川电力科学研究院 | Comprehensive lightning protection method for wires in complex terrains and frequent lightning areas |
| US20140052393A1 (en) * | 2011-04-29 | 2014-02-20 | Shanxi Electric Power Research Institute | Method for determining spatial location of conducting wire and aerial earth wire of power transmission line |
-
2015
- 2015-08-31 CN CN201510545949.4A patent/CN105243176B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100286954A1 (en) * | 2008-04-21 | 2010-11-11 | Wuhan NaRi Limited Company of State Grid Electric Power Research Institute | Method for determining lightning hazard distribution of power network |
| CN101272040A (en) * | 2008-04-28 | 2008-09-24 | 华北电力科学研究院有限责任公司 | Method for electric power line lightning protection configuration by using electric network lightning disturbance distribution |
| US20140052393A1 (en) * | 2011-04-29 | 2014-02-20 | Shanxi Electric Power Research Institute | Method for determining spatial location of conducting wire and aerial earth wire of power transmission line |
| CN103490367A (en) * | 2013-01-29 | 2014-01-01 | 四川电力科学研究院 | Comprehensive lightning protection method for wires in complex terrains and frequent lightning areas |
Non-Patent Citations (4)
| Title |
|---|
| 亓超: "基于ATP-Draw的220kV户外变电站雷电侵入波计算分析", 《万方数据》 * |
| 刘刚等: "根据雷电定位数据对输电线路雷击跳闸率计算方法修正的探讨", 《电瓷避雷器》 * |
| 康琛: "山区输电线路避雷器加装方案研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 田洪等: "线路避雷器提高超高压大跨越架空线路绕击耐雷水平的仿真研究", 《高电压技术》 * |
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| CN106229959A (en) * | 2016-08-12 | 2016-12-14 | 中国电力科学研究院 | A kind of extra high voltage direct current transmission line Overvoltage suppressing method |
| CN106229959B (en) * | 2016-08-12 | 2020-07-24 | 中国电力科学研究院 | Overvoltage suppression method for extra-high voltage direct current transmission line |
| CN108110721A (en) * | 2017-11-24 | 2018-06-01 | 国网北京市电力公司 | Arrester installation method and device |
| CN108846229A (en) * | 2018-06-27 | 2018-11-20 | 广东电网有限责任公司电力科学研究院 | A kind of distribution line rocket triggered lightning test method of arrester differentiation configuration |
| CN109002634A (en) * | 2018-08-01 | 2018-12-14 | 温州大学 | Overhead distributionnetwork arrester installation site optimization method based on hybrid simulation technology |
| CN109726523A (en) * | 2019-03-04 | 2019-05-07 | 广东电网有限责任公司 | A kind of selection method and device of arrester installation site |
| CN110889555A (en) * | 2019-11-27 | 2020-03-17 | 国网山东省电力公司滨州供电公司 | Method and device for generating lightning stroke disconnection protection scheme of overhead line |
| CN110889555B (en) * | 2019-11-27 | 2022-05-31 | 国网山东省电力公司滨州供电公司 | Method and device for generating overhead line lightning stroke disconnection protection scheme |
| CN112653063A (en) * | 2020-12-17 | 2021-04-13 | 长沙理工大学 | 10kV overhead line lightning protection method used by matching of coupling ground wire and lightning arrester |
| CN112653063B (en) * | 2020-12-17 | 2022-07-29 | 长沙理工大学 | Lightning protection method for 10kV overhead line used by matching coupling ground wire and lightning arrester |
| CN114722340A (en) * | 2022-04-19 | 2022-07-08 | 国网四川省电力公司电力科学研究院 | Power distribution network power failure range analysis method |
| CN114722340B (en) * | 2022-04-19 | 2023-04-25 | 国网四川省电力公司电力科学研究院 | Power distribution network power outage range analysis method |
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