CN106570241A - Method and system for adjusting layout of lightning arrester of ultra high voltage direct current converter station - Google Patents
Method and system for adjusting layout of lightning arrester of ultra high voltage direct current converter station Download PDFInfo
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- CN106570241A CN106570241A CN201610939907.3A CN201610939907A CN106570241A CN 106570241 A CN106570241 A CN 106570241A CN 201610939907 A CN201610939907 A CN 201610939907A CN 106570241 A CN106570241 A CN 106570241A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F30/20—Design optimisation, verification or simulation
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- Y—GENERAL 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
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Abstract
The invention relates to a method and a system for adjusting a layout of a lightning arrester of an ultra high voltage direct current converter station. The method comprises the steps of dividing an area for a direct current field of the ultra high voltage direct current converter station according to the existing layout of the lightning arrester; computing a shielding failure current of the divided area by using a rolling ball method and based on a striking distance formula; computing a maximum overvoltage of direct lightning suffered by the divided area by using a plurality of gap Clearance flashover models and based on the shielding failure current; and adjusting the layout of the lightning arrester according to a computing result of the maximum overvoltage.
Description
Technical field
The present invention relates to extra-high voltage direct-current power engineering simulation calculation field, and it is special more particularly, to a kind of adjustment
The method and system of HVDC converter substation lightning arrester layout.
Background technology
Current conversion station is the hinge in direct current power system, once there is Lightning Fault, it is possible to cause large area to stop
Electricity, affects extremely serious.So, current conversion station requires there are reliable Lighting Protection Measures.The damage to crops caused by thunder of current conversion station from two aspects,
One is that thunder directly hits on change of current station equipment and causes the damage of station equipment, abbreviation direct lightning strike；Two is that transmission line of electricity is arrived in thunderbolt
Shaft tower and lightning conducter on, cause insulator arc-over (counterattack), or directly hit the lightning wave that (shielding) is produced on wire, ripple
Current conversion station being delivered to along transmission line of electricity and lightning surge being produced on change of current station equipment and causes apparatus insulated damage, this is referred to as invaded
Enter ripple.So, the Lighting Protection Measures of change of current station equipment have two aspects, the protection of a direct lightning strike, and another is that thunder and lightning is invaded
Enter the protection of ripple.
For the protection of direct lightning strike, both at home and abroad general way is to install discharging rod and lightning conducter in current conversion station.From China
The operating experience of a large amount of transformer stations of 110kV～1000kV transformer station's direct lightning strike protection for many years understands, existing according to China
The method that code specifies, the correct design and installation transformer station of discharging rod and lightning conducter, its direct lightning strike protection effect is reliable
's.But current conversion station direct current field device is more, and dielectric level is weaker, install lightning conducter and discharging rod be also possible that generation compared with
Little shielding electric current bypasses the accident that DC equipment is attacked in needlework combination directly, it is contemplated that the importance of UHVDC converter station, institute
To need to planning to build vertical current conversion station and occurring whether the transformer station of lightning strike accident analyzes lightning conducter arrangement by simulation calculation
Rationally.
The content of the invention
In order to solve the problems referred to above of background technology presence, the present invention provides a kind of adjustment UHVDC converter station and takes shelter from the thunder
The method of device layout, methods described includes：
According to the layout of existing lightning arrester, the DC fields zoning to the UHVDC converter station；
Using rolling ball method and based on the shielding electric current hit away from the divided region of formula calculating；
The region divided using various gap flashover models and based on shielding Current calculation is subjected to the maximum of direct lightning strike
Overvoltage；And
The layout of lightning arrester is adjusted according to the result of calculation of the maximum overvoltage.
Preferably, hit as follows away from formula using rolling ball method calculating shielding electric current：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
Preferably, various gap flashover models include：Voltage-time curve intersects method, integration method, Shindo＆
Suzuki leader development models, CIGRE leader development models, Pigini leader development models and Motoyama guide development mould
Type.
Preferably, the lightning arrester includes discharging rod and lightning conducter.
Preferably, the applicable situation of methods described includes：Vertical UHVDC converter station lightning arrester cloth is planned to build in adjustment
Office and the UHVDC converter station to there is lightning strike accident, by contrast failure wave-recording waveform and using various gap flashovers
The faulty equipment simulation waveform adjustment lightning arrester layout that model is calculated.
According to a further aspect in the invention, the present invention relates to a kind of adjustment UHVDC converter station lightning arrester layout
System, it is characterised in that the system includes：
Lightning arrester layout determining unit, it is used for according to the layout of lightning arrester to DC converter station DC fields dividing regions
Domain；
Shielding current determination unit, it is used for using rolling ball method and based on hitting away from formula, the region of computation partition around
Hit electric current；
Maximum overvoltage determining unit, it is used for according to various gap flashover models, is divided based on shielding Current calculation
Region is subjected to the maximum overvoltage of direct lightning strike；And
Lightning arrester layout optimization unit, it is used to adjust the cloth of lightning arrester according to the result of calculation of maximum overvoltage
Office.
Preferably, shielding current determination unit hits as follows away from formula using rolling ball method calculating shielding electric current：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
Preferably, various gap flashover models include：Voltage-time curve intersects method, integration method, Shindo＆
Suzuki leader development models, CIGRE leader development models, Pigini leader development models and Motoyama guide development mould
Type.
Preferably, the lightning arrester includes discharging rod and lightning conducter.
Preferably, the applicable situation of the system includes：Vertical UHVDC converter station lightning arrester cloth is planned to build in adjustment
Office and the UHVDC converter station to there is lightning strike accident, by contrast failure wave-recording waveform and using various gap flashovers
The faulty equipment simulation waveform adjustment lightning arrester layout that model is calculated.
By the method and system of adjustment UHVDC converter station lightning arrester of the present invention, various skies can be adopted
Gas gap former analyzes the over-voltage condition that thunder and lightning attacks the electrical equipment of lower current conversion station DC fields directly comprehensively, so as to adjust plan in time
Set up, and the layout that there occurs the lightning arrester of the current conversion station of lightning strike accident.
Description of the drawings
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by：
Fig. 1 is the flow process of the method for the adjustment UHVDC converter station lightning arrester layout of the specific embodiment of the invention
Figure；And
Fig. 2 is the structure of the system of the adjustment UHVDC converter station lightning arrester layout of the specific embodiment of the invention
Figure.
Specific embodiment
With reference now to accompanying drawing, the illustrative embodiments of the present invention are introduced, however, the present invention can be with many different shapes
Formula is not limited to embodiment described herein implementing, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.For showing for being illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise stated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with the dictionary being usually used, is appreciated that and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 is the flow process of the method for the adjustment UHVDC converter station lightning arrester layout of the specific embodiment of the invention
Figure.As shown in figure 1, the method 100 of adjustment UHVDC converter station lightning arrester layout is from the beginning of step S101.
In step S101, according to the layout of existing lightning arrester, the DC fields of the UHVDC converter station are divided
Region.Wherein, the lightning arrester includes discharging rod and lightning conducter.
In step S102, using rolling ball method and based on the shielding electric current hit away from the divided region of formula calculating.Utilize
Rolling ball method calculates shielding electric current and hits as follows away from formula：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
In step S103, the region divided using various gap flashover models and based on shielding Current calculation is subjected to directly
Hit the maximum overvoltage of thunder.Wherein, various gap flashover models include：Voltage-time curve intersect method, integration method,
Shindo＆Suzuki leader development models, CIGRE leader development models, Pigini leader development models and Motoyama guide
Progressions model.
In step S104, the layout of lightning arrester is adjusted according to the result of calculation of the maximum overvoltage.
The applicable situation of heretofore described method includes：Vertical UHVDC converter station lightning arrester cloth is planned to build in adjustment
Office and the UHVDC converter station to there is lightning strike accident, by contrast failure wave-recording waveform and using various gap flashovers
The faulty equipment simulation waveform adjustment lightning arrester layout that model is calculated.
Fig. 2 is the structure of the system of the adjustment UHVDC converter station lightning arrester layout of the specific embodiment of the invention
Figure.As shown in Fig. 2 the system of adjustment UHVDC converter station lightning arrester layout includes lightning arrester layout determining unit
201st, shielding current determination unit 202, maximum overvoltage determining unit 203 and lightning arrester layout optimization unit 204.
Lightning arrester layout determining unit 201, it is used for straight to UHVDC converter station according to the layout of lightning arrester
Fluid field decomposition region.Wherein, the lightning arrester includes discharging rod and lightning conducter.
Shielding current determination unit 202, it is used for using rolling ball method and based on hitting away from formula, the region of computation partition
Shielding electric current.Shielding current determination unit hits as follows away from formula using rolling ball method calculating shielding electric current：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
Maximum overvoltage determining unit 203, it is used for according to various gap flashover models, is divided based on shielding Current calculation
Region be subjected to the maximum overvoltage of direct lightning strike.Wherein, various gap flashover models include：Voltage-time curve intersects
Method, integration method, Shindo＆Suzuki leader development models, CIGRE leader development models, Pigini leader development models and
Motoyama leader development models.
Lightning arrester layout optimization unit 204, it is used to adjust lightning arrester according to the result of calculation of maximum overvoltage
Layout.
The applicable situation of the system includes：Vertical UHVDC converter station lightning arrester layout and right is planned to build in adjustment
There is the UHVDC converter station of lightning strike accident, by contrasting failure wave-recording waveform and calculating using various gap flashover models
Faulty equipment simulation waveform adjustment lightning arrester layout.
Unless otherwise stated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with the dictionary being usually used, is appreciated that and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
By above embodiments describing the present invention.However, it is known in those skilled in the art, as subsidiary
Patent right requirement limited, except the present invention other embodiments disclosed above equally fall in the scope of the present invention
It is interior.
Normally, all terms for using in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly defined in addition wherein.All of reference " one/described/be somebody's turn to do【Device, component etc.】" all it is opened ground
At least one of described device, component etc. example is construed to, unless otherwise expressly specified.Any method disclosed herein
Step all need not be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (10)
1. it is a kind of adjustment UHVDC converter station lightning arrester layout method, it is characterised in that methods described includes：
According to the layout of existing lightning arrester, the DC fields zoning to the UHVDC converter station；
Using rolling ball method and based on the shielding electric current hit away from the divided region of formula calculating；
The region divided using various gap flashover models and based on shielding Current calculation is subjected to the most serious offense electricity of direct lightning strike
Pressure；And
The layout of lightning arrester is adjusted according to the result of calculation of the maximum overvoltage.
2. method according to claim 1, it is characterised in that calculate hitting away from formula such as shielding electric current using rolling ball method
Under：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
3. method according to claim 1, it is characterised in that various gap flashover models include：Volt-second characteristic is bent
Line intersects method, integration method, Shindo＆Suzuki leader development models, CIGRE leader development models, Pigini guide's development mould
Type and Motoyama leader development models.
4. method according to claim 1, it is characterised in that the lightning arrester includes discharging rod and lightning conducter.
5. method according to claim 1, it is characterised in that the applicable situation of methods described includes：Adjustment is planned to build vertical
UHVDC converter station lightning arrester layout and the UHVDC converter station to there is lightning strike accident, by contrasting failure
Record waveform and calculate faulty equipment simulation waveform adjustment lightning arrester layout using various gap flashover models.
6. it is a kind of adjustment UHVDC converter station lightning arrester layout system, it is characterised in that the system includes：
Lightning arrester layout determining unit, it is used for according to the layout of lightning arrester to DC converter station DC fields zoning；
Shielding current determination unit, it is used for using rolling ball method and based on hitting away from formula, and the shielding in the region of computation partition is electric
Stream；
Maximum overvoltage determining unit, it is used for according to various gap flashover models, based on the region that shielding Current calculation is divided
It is subjected to the maximum overvoltage of direct lightning strike；And
Lightning arrester layout optimization unit, it is used to adjust the layout of lightning arrester according to the result of calculation of maximum overvoltage.
7. system according to claim 6, it is characterised in that shielding current determination unit calculates shielding electricity using rolling ball method
That what is flowed hits as follows away from formula：
R=10I0.65
Wherein, r is ball radius, and I is shielding electric current.
8. system according to claim 6, it is characterised in that various gap flashover models include：Volt-second characteristic is bent
Line intersects method, integration method, Shindo＆Suzuki leader development models, CIGRE leader development models, Pigini guide's development mould
Type and Motoyama leader development models.
9. system according to claim 6, it is characterised in that the lightning arrester includes discharging rod and lightning conducter.
10. system according to claim 6, it is characterised in that the applicable situation of the system includes：Adjustment is planned to build vertical
UHVDC converter station lightning arrester layout and the UHVDC converter station to there is lightning strike accident, by contrasting failure
Record waveform and the faulty equipment simulation waveform adjustment lightning arrester layout calculated using various gap flashover models.
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| CN201610939907.3A CN106570241A (en) | 2016-10-25 | 2016-10-25 | Method and system for adjusting layout of lightning arrester of ultra high voltage direct current converter station |
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| CN201610939907.3A CN106570241A (en) | 2016-10-25 | 2016-10-25 | Method and system for adjusting layout of lightning arrester of ultra high voltage direct current converter station |
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| CN107229809A (en) * | 2017-07-14 | 2017-10-03 | 山东电力工程咨询院有限公司 | SPD Optimal Configuration Methods in power plant low-voltage distribution system based on particle cluster algorithm |
| CN108052702A (en) * | 2017-11-23 | 2018-05-18 | 上海无线电设备研究所 | A kind of thunder and lightning partition method based on lightning shortest path space geometry topology theory |
| CN111597697A (en) * | 2020-05-08 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Extra-high voltage same-tower double-circuit line arrester arrangement optimization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107229809A (en) * | 2017-07-14 | 2017-10-03 | 山东电力工程咨询院有限公司 | SPD Optimal Configuration Methods in power plant low-voltage distribution system based on particle cluster algorithm |
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| CN111597697A (en) * | 2020-05-08 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Extra-high voltage same-tower double-circuit line arrester arrangement optimization method |
| CN111597697B (en) * | 2020-05-08 | 2024-02-02 | 国网山东省电力公司电力科学研究院 | Arrangement optimization method for extra-high voltage same-tower double-circuit line lightning arresters |
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