CN103310078B - Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker - Google Patents
Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker Download PDFInfo
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- CN103310078B CN103310078B CN201310285885.XA CN201310285885A CN103310078B CN 103310078 B CN103310078 B CN 103310078B CN 201310285885 A CN201310285885 A CN 201310285885A CN 103310078 B CN103310078 B CN 103310078B
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- 238000004458 analytical method Methods 0.000 title claims abstract description 22
- 238000004364 calculation method Methods 0.000 claims abstract description 21
- 238000013459 approach Methods 0.000 claims description 12
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- 238000010205 computational analysis Methods 0.000 claims description 5
- 238000011161 development Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
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- General Physics & Mathematics (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses an automatic modeling analysis method for an over-voltage level of a switching reactor of a vacuum circuit breaker. The automatic modeling analysis method comprises the steps of: 1) establishing an analysis model for the over-voltage level of the switching reactor of the vacuum circuit breaker; 2) managing the analysis model; 3) calculating the over-voltage level; and 4) outputting and displaying. By setting a small number of parameters and selecting a calculation condition, the analysis model can be set up automatically, and an analysis platform is provided for the over-voltage level of the switching reactor of the vacuum circuit breaker; the automatic modeling analysis method for the over-voltage level of the switching reactor of the vacuum circuit breaker has a good man-machine interaction interface, is convenient to operate, plays a main role in the calculation and analysis of the over-voltage level of the switching reactor of the vacuum circuit breaker, and has a good application foreground.
Description
Technical field
The present invention relates to a kind of automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level, belong to technical field of high voltage power transmission.
Background technology
At present, vacuum circuit breaker is applied widely with its very strong arc extinguishing ability, but just because of its arc extinguishing ability is too strong, while arc extinguishing, the generation of cut-off overvoltage can be brought, the basic load of vacuum circuit breaker has inductive equipment and capacitance type equipment, cut-offs superpotential mainly the damming and restrike of breaker vacuum electric arc.When vacuum circuit breaker cut-offs perceptual small area analysis on the one hand, inductive equipment stores energy when blow-out, can in load end vibration or the superpotential be converted on ground capacitance, on the other hand, in interrupting process, electric arc restrikes, contact of breaker is made to flow through high-frequency current, thus cause superpotential, when vacuum circuit breaker pulls open reactor, easily there is electric fault, damage the equipment such as surrounding switch cubicle, direct influential system safe and stable operation, we know that the shut off value reducing vacuum circuit breaker is the key solving and prevent cut-off overvoltage from producing, therefore in order to protect the safe operation of electric system, the switching overvoltage of research vacuum circuit breaker is significant, Overvoltage of Vacuum Disconnectors in Operation is inevitable in actual motion, vacuum circuit breaker is used just to need to solve vacuum circuit breaker, Insulation Coordination relation between reactor and overvoltage protection thereof configure, the analytical calculation of vacuum circuit breaker switching reactor overvoltage level is then the first step solving this kind of problem.
At present, the software researching and analysing the analytical calculation of the overvoltage level of vacuum circuit breaker mainly contains: EMTP/ATP, EMTDC/PSCAD etc., these softwares are English interface, need to be grasped device parameter and all kinds of software module function during use and requirement is set, require higher to user of service, superpotential calculation analysis work has limitation.Vacuum circuit breaker model can be set to natural zero-crossing as required and turn off or current value shutoff arbitrarily when using, EMTDC/PSCAD software interruption road device module installation option is more, and operation comparatively bothers; And without setting of directly damming in EMTP/ATP, logic judgment module need be built voluntarily.
Therefore setting up a kind of automatic modeling analytical approach for vacuum circuit breaker switching reactor overvoltage level, is current urgent problem.
Summary of the invention
Analyze the superpotential method of vacuum circuit breaker switching reactor to overcome in prior art, configuration is complicated, and troublesome poeration, needs the problem of manually building logic judgment module.The automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level provided by the invention, by arranging a small amount of parameter and seletion calculation condition, just automatically can set up analytical model, provide analysis platform for carrying out vacuum circuit breaker switching reactor superpotential, having a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
An automatic modeling analytical approach for vacuum circuit breaker switching reactor overvoltage level, is characterized in that: comprise the following steps,
Step (1) sets up the analytical model of vacuum circuit breaker switching reactor overvoltage level
Kernel program based on EMTP, EMTDC carries out secondary development, chooses the parameter of automatic modeling; According to the parameter choosing automatic modeling, set up the analytical model of vacuum circuit breaker switching reactor overvoltage level;
Step (2) administrative analysis model
According to computational analysis needs, select to calculate cut-off overvoltage or Restriking overvoltage level;
Step (3) overvoltage level calculates
If according to the selection of step (2), calculate cut-off overvoltage or Restriking overvoltage;
Step (4) output display
Show step (3) result of calculation, described result of calculation comprise form numeral and corresponding voltage, current waveform change curve.
The automatic modeling analytical approach of aforesaid vacuum circuit breaker switching reactor overvoltage level, is characterized in that: the parameter of described automatic modeling comprises the system voltage of vacuum circuit breaker switching reactor, reactor capacity, vacuum circuit breaker current interception value.
The automatic modeling analytical approach of aforesaid vacuum circuit breaker switching reactor overvoltage level, is characterized in that: described calculating cut-off overvoltage or Restriking overvoltage comprise the vacuum circuit breaker switching reactor overvoltage level under the given shut off value of calculating or the Restriking overvoltage level under calculating the given time of restriking; Calculate as required the single setting cut-off overvoltage level of shut off value or multitask calculate different shut off value under cut-off overvoltage level; To restrike Time Calculation Restriking overvoltage level or setting-up time scope and step-length according to setting, calculate maximum Restriking overvoltage level in given range.
The invention has the beneficial effects as follows: the automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level of the present invention, by arranging a small amount of parameter and seletion calculation condition, just automatically analytical model can be set up, analysis platform is provided for carrying out vacuum circuit breaker switching reactor superpotential, and test through simulation analysis, adopt the modeling analysis of this method, there is good human-computer interaction interface, easy to operate, result of calculation and EMTP/ATP, EMTDC/PSCAD software analysis, acquired results is consistent, Main Function is played in the computational analysis of vacuum circuit breaker switching reactor operation overvoltage level, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system chart of the automatic modeling analytical approach operation platform of vacuum circuit breaker switching reactor overvoltage level of the present invention.
Fig. 2 is one embodiment of the invention Restriking overvoltage waveforms when certain 20kV bus switching reactor.
Fig. 3 superpotential change curve that is one embodiment of the invention when certain 20kV bus different capacitors in parallel during switching reactor.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
The automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level of the present invention, by arranging a small amount of parameter and seletion calculation condition, just automatically analytical model can be set up, analysis platform is provided for carrying out vacuum circuit breaker switching reactor superpotential, and test through simulation analysis, adopt the modeling analysis of this method, there is good human-computer interaction interface, easy to operate, result of calculation and EMTP/ATP, EMTDC/PSCAD software analysis, acquired results is consistent, Main Function is played in the computational analysis of vacuum circuit breaker switching reactor operation overvoltage level, as shown in Figure 1, specifically comprise the following steps,
Step (1) sets up the analytical model of vacuum circuit breaker switching reactor overvoltage level
Kernel program based on EMTP, EMTDC carries out secondary development, has good interactive interface, chooses the parameter of automatic modeling; According to the parameter choosing automatic modeling, comprise the system voltage of vacuum circuit breaker switching reactor, reactor capacity, vacuum circuit breaker current interception value, set up the analytical model of vacuum circuit breaker switching reactor overvoltage level;
Step (2) administrative analysis model
Switching overvoltage computing module, according to computational analysis needs, selects to calculate cut-off overvoltage or Restriking overvoltage level;
Step (3) overvoltage level calculates
If according to the selection of step (2), calculate cut-off overvoltage or Restriking overvoltage, comprise the vacuum circuit breaker switching reactor overvoltage level under the given shut off value of calculating or the Restriking overvoltage level under calculating the given time of restriking; Calculate as required the single setting cut-off overvoltage level of shut off value or multitask calculate different shut off value under cut-off overvoltage level; To restrike Time Calculation Restriking overvoltage level or setting-up time scope and step-length according to setting, calculate maximum Restriking overvoltage level in given range;
Step (4) output display
Show the result of calculation of step (3), single calculation result can be shown by result of calculation display module, also can be shown as certain parameter and change the impact analysis brought, result of calculation can be shown as the form numeral of required form, also can show corresponding voltage, current waveform or change curve.
Lower mask body introduction is according to the embodiment of said method:
In the present embodiment: system busbar voltage is 20kV, reactor is 0.106H, use this method to carry out switching overvoltage to calculate, as shown in Figure 2, for bus Restriking overvoltage waveform during switching reactor, its bus powers on to be pressed in when isolating switch is restriked local oscillation phenomenon, moment difference of restriking, and overvoltage level is also different; As shown in Figure 3, during different electric capacity in parallel for bus, vacuum circuit breaker pulls open reactor cut-off overvoltage change curve, from calculating, effectively can reduce the cut-off overvoltage value at reactor two ends after shnt capacitor, shunt capacitance value is larger, and corresponding overvoltage value is less, after capacitance is greater than 0.2uF, overvoltage value remains unchanged substantially.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. the automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level, is characterized in that: comprise the following steps,
Step (1) sets up the analytical model of vacuum circuit breaker switching reactor overvoltage level
Kernel program based on EMTP, EMTDC carries out secondary development, chooses the parameter of automatic modeling; According to the parameter choosing automatic modeling, set up the analytical model of vacuum circuit breaker switching reactor overvoltage level;
Step (2) administrative analysis model
According to computational analysis needs, select to calculate cut-off overvoltage or Restriking overvoltage level;
Step (3) overvoltage level calculates
If according to the selection of step (2), calculate cut-off overvoltage or Restriking overvoltage, described calculating cut-off overvoltage or Restriking overvoltage comprise the vacuum circuit breaker switching reactor overvoltage level under the given shut off value of calculating or the Restriking overvoltage level under calculating the given time of restriking; Calculate as required the single setting cut-off overvoltage level of shut off value or multitask calculate different shut off value under cut-off overvoltage level; To restrike Time Calculation Restriking overvoltage level or setting-up time scope and step-length according to setting, calculate maximum Restriking overvoltage level in given range;
Step (4) output display
Show step (3) result of calculation, described result of calculation comprise form numeral and corresponding voltage, current waveform change curve.
2. the automatic modeling analytical approach of vacuum circuit breaker switching reactor overvoltage level according to claim 1, is characterized in that: the parameter of described automatic modeling comprises the system voltage of vacuum circuit breaker switching reactor, reactor capacity and vacuum circuit breaker current interception value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285885.XA CN103310078B (en) | 2013-07-09 | 2013-07-09 | Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker |
| PCT/CN2013/088292 WO2015003454A1 (en) | 2013-07-09 | 2013-12-02 | Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310285885.XA CN103310078B (en) | 2013-07-09 | 2013-07-09 | Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker |
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| CN103310078A CN103310078A (en) | 2013-09-18 |
| CN103310078B true CN103310078B (en) | 2015-04-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103310078B (en) * | 2013-07-09 | 2015-04-01 | 国家电网公司 | Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker |
| CN103577657A (en) * | 2013-11-26 | 2014-02-12 | 国家电网公司 | Vacuum arc-extinguishing chamber simulation method and device of medium-pressure vacuum arc-extinguishing chamber internal electric field based on virtual prototype technology |
| CN105988062A (en) * | 2015-02-15 | 2016-10-05 | 国家电网公司 | Switch operation over-voltage inhibition method for impedance low-voltage ride through detection device |
| CN111007308B (en) * | 2019-12-28 | 2022-02-15 | 广东电网有限责任公司电力科学研究院 | Overvoltage monitoring method, device and equipment |
| CN112836345A (en) * | 2021-01-07 | 2021-05-25 | 云南电网有限责任公司电力科学研究院 | Overvoltage simulation method for switching reactor of circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217078A (en) * | 2008-01-04 | 2008-07-09 | 西安交通大学 | A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| CN101661850A (en) * | 2009-08-27 | 2010-03-03 | 常州市明及电气技术开发有限公司 | Protector for preventing interception over-voltage and arc reignition over-voltage of vacuum circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020198691A1 (en) * | 2001-06-19 | 2002-12-26 | Subhasish Roychoudhury | Methods and systems for ars interruption modeling |
| CN103310078B (en) * | 2013-07-09 | 2015-04-01 | 国家电网公司 | Automatic modeling analysis method for over-voltage level of switching reactor of vacuum circuit breaker |
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- 2013-07-09 CN CN201310285885.XA patent/CN103310078B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217078A (en) * | 2008-01-04 | 2008-07-09 | 西安交通大学 | A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| CN101661850A (en) * | 2009-08-27 | 2010-03-03 | 常州市明及电气技术开发有限公司 | Protector for preventing interception over-voltage and arc reignition over-voltage of vacuum circuit breaker |
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| CN103310078A (en) | 2013-09-18 |
| WO2015003454A1 (en) | 2015-01-15 |
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