CN104978691A - Power grid risk pre-control method based on big data - Google Patents
Power grid risk pre-control method based on big data Download PDFInfo
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- CN104978691A CN104978691A CN201410133665.XA CN201410133665A CN104978691A CN 104978691 A CN104978691 A CN 104978691A CN 201410133665 A CN201410133665 A CN 201410133665A CN 104978691 A CN104978691 A CN 104978691A
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Abstract
The invention provides a power grid risk pre-control method based on big data. The method comprises steps of 1, scrolling check of multiclass scheduling plan modes; 2, component outage model construction based on reliable data, real-time external factor data and equipment status data; 3, fault filtering based on topology analysis, failure influence domain and probability to automatically generate a real-time fault set; 4, static safety analysis based on multiple algorithms and consideration of cascading failures; and 5, load loss calculation method based on sensitivity. According to the invention, the component outage probability modeling is achieved based on real-time external environmental information, the fault set is automatically generated based on topology analysis and failure influence domain, the static safety analysis based on consideration of cascading failures is achieved, potential risks of a power grid are quantified into load shedding amount, risk indexes are calculated, and a powerful tool for analyzing current power grid risks is provided to dispatchers.
Description
Technical field
The present invention relates to power grid risk assessment technical field, in particular, relate to the power grid risk pre-control method based on large data.
Background technology
Along with the continuous progress of economic society, the whole society requires day by day to improve to power supply reliability, and the attention rate of the common people to power supply safety is more and more higher, and the external pressure that grid company faces is also increasing.2011, " electric power safety accident emergency dispose and regulations of investigating " (State Council 599 command), " State Grid Corporation of China's security incident investigation code " (No. (2011) 2024, national grid safety supervision) successively issuing and implementation, guarantee power network safety operation and reliable power supply to company, effectively evade electric power accident risk and have higher requirement.Urban district, Shenzhen on the 10th April in 2012 has a power failure on a large scale, Luohu, Feitian and Long Gang section continue to have a power failure about 2 hours on a large scale, the running of whole city is had a strong impact on, urban transportation falls into chaos, railway station because of have a power failure once interrupt run, many motor-cars late, a large amount of passenger is detained station, and residential elevator is stopped transport, and a large amount of people's life is stranded; Though this power outage does not directly cause casualties, cause very adverse influence socially, reflect current electric grid operation further and still there is many weak links, in power grid risk management and control, still have much work to need to be carried out.
Summary of the invention
In view of this, a kind of power grid risk pre-control method based on large data is embodiments provided, to solve the problem.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
(1) bulk power grid real-time risk assessment and pre-control method
Research bulk power grid theory of risk assessment, sets up risk evaluation model, build provincial power network risk assessment and pre-control subsystem, realizes automatically providing change according to the change of the Outer risks factor in real time by the present invention
Fault set, and then carry out Risk Calculation, and give yardman different risk class promptings according to result of calculation, provide risk-aversion and control aid decision making.Particular content is as follows:
A) access weather data in real time, comprise thunder and lightning, typhoon, mountain fire, icing etc.; Real-time access device evaluation grade, sets up element outage model, calculates power failure probability and fault set in real time.
B) based on fault set and power failure probability, according to State Council 599 command, Guo Wang company " security incident investigation code ", Zhejiang company " risk management regulation ", extract real-time grid information, calculation risk grade, provides indicating risk in real time.
C) will take into account cascading failure in computation process, power shortage calculating produced, circuit overload become the load loss in each region with voltage out-of-limit equivalence.
D) with the coupling such as " accident ration the power supply tagmeme table ", " supply more than the planned quota power ration the power supply tagmeme table ", relevant prevention and control aid decision making is provided.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of power grid risk pre-control method process flow diagram based on large data that Fig. 1 provides for the embodiment of the present invention;
embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to make persons skilled in the art understand and realize the present invention, now by reference to the accompanying drawings embodiments of the invention are described.Obviously; described embodiment is only some embodiments of the present application, instead of whole embodiments, based on the embodiment in the application; those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all should belong to the scope of the application's protection.
In view of this, the power grid risk pre-control method based on large data is embodiments provided, to solve the problem.
At least can comprise the steps: see the above-mentioned power grid risk pre-control method based on large data of Fig. 1
Fundamental purpose of the present invention is the real-time assessment realizing power grid risk, the running status assessment data of the integration real-time information such as thunder and lightning, typhoon, icing of access and equipment, enables system assess the possibility that in current actual environment, fault occurs more really.Native system is on the basis of historical reliability data, and carried out the element short-term stoppage in transit probability calculation based on real time meteorological data, the real time meteorological data of introducing mainly comprises lightning current, typhoon wind speed, ice covering thickness etc.
For realizing power grid real-time risk assessment, reducing fault set to be evaluated and improving the performance of power flow algorithm, to reach the ability of efficient scanning fault.Fault set in current security and stability analysis of large power grid is many by manually safeguarding, when rack changes, cannot upgrade in time, and real-time risk is often caused by rack changes, therefore be necessary to upgrade in time to fault set, to reach the practical of risk assessment.Simultaneously due to risk emulation is extreme case, needs to consider due to yardman's operation cascading failure of causing of reason such as not in time.
The present invention quantizes risk class listed by the codes such as State Council 599 command, for the mainly cutting load amount of reflection risk bulk power grid, therefore needs all potential electrical network problems to be all finally converted to cutting load amount to characterize.This project adopts sensitivity method, and electrical network potential risk is quantified as load.
Claims (1)
1., based on a power grid risk pre-control method for large data, it is characterized in that, comprising:
(1) rolling of multiclass operation plan mode is checked;
(2) based on reliability data and real-time external factor data, device status data, element outage model is built;
(3) based on topological analysis and fault effects territory, and carry out fault filtering based on probability, automatically generate real time fail collection;
(4) based on many algorithms and the static security analysis considering cascading failure;
(5) based on the load loss computing method of sensitivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133665.XA CN104978691A (en) | 2014-04-02 | 2014-04-02 | Power grid risk pre-control method based on big data |
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| CN201410133665.XA CN104978691A (en) | 2014-04-02 | 2014-04-02 | Power grid risk pre-control method based on big data |
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| CN104978691A true CN104978691A (en) | 2015-10-14 |
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| CN201410133665.XA Pending CN104978691A (en) | 2014-04-02 | 2014-04-02 | Power grid risk pre-control method based on big data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150094965A1 (en) * | 2013-09-30 | 2015-04-02 | Battelle Memorial Institute | Electrical Power Grid Monitoring Apparatus, Articles of Manufacture, and Methods of Monitoring Equipment of an Electrical Power Grid |
| CN116663785A (en) * | 2023-08-01 | 2023-08-29 | 国网四川省电力公司广安供电公司 | Topology identification-based low-voltage fault positioning method |
-
2014
- 2014-04-02 CN CN201410133665.XA patent/CN104978691A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150094965A1 (en) * | 2013-09-30 | 2015-04-02 | Battelle Memorial Institute | Electrical Power Grid Monitoring Apparatus, Articles of Manufacture, and Methods of Monitoring Equipment of an Electrical Power Grid |
| CN116663785A (en) * | 2023-08-01 | 2023-08-29 | 国网四川省电力公司广安供电公司 | Topology identification-based low-voltage fault positioning method |
| CN116663785B (en) * | 2023-08-01 | 2023-10-10 | 国网四川省电力公司广安供电公司 | Topology identification-based low-voltage fault positioning method |
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Application publication date: 20151014 |
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