Intelligent power distribution network online risk assessment method

A smart distribution network and risk assessment technology, applied in instruments, data processing applications, calculations, etc., to achieve high practicability, easy establishment, and great flexibility

Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, these schemes still have a lot of room for improvement in the evaluation information collection and evaluation probability set classification mechanism, so as to make the evaluation criteria more accurate and the evaluation results more intuitive

Method used

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  • Intelligent power distribution network online risk assessment method
  • Intelligent power distribution network online risk assessment method
  • Intelligent power distribution network online risk assessment method

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Embodiment Construction

[0028] Such as Figure 1 to Figure 5 As shown, an online risk assessment method for smart distribution network includes the following steps:

[0029] 1) Establish an online risk assessment system for smart distribution networks. The system includes a sampling unit, a data analysis unit, and a risk report generation unit. The sampling unit includes a human-computer interaction interface and is connected to the power grid information data platform. Historical power grid information data can also be manually entered into real-time data information; the data analysis unit includes a forecast model generation and calculation unit, and the risk report generation unit is used to export forecast values ​​and generate forecast analysis reports;

[0030] Distribution network risk refers to the uncertainty of distribution network operation security, that is, the combination of factors affecting distribution network operation security, the possibility and consequences of state changes cau...

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Abstract

The invention discloses an intelligent power distribution network online risk assessment method. Through comprehensive analysis of online data and historical data, an assessment mathematic model is established, and a visually-displayed risk assessment diagram is finally formed. According to targeted power grid data collection and through comprehensive analysis of the online data and the historical data, the data can be monitored in real time, analysis models expanded on the basis of a large number of existing database devices of a power grid are easy to establish, according to the actual condition of the power grid, the risk pre-warning level is instructed simply, visually and clearly in the mode that a two-dimensional chart and different colors are matched, and therefore practicality is high. Prediction models of a system can be edited according to different formula computing methods, flexibility is large, a data report can be updated and stored through a network platform, the current requirement of a user is met, and the method can adapt to changes of development and management modes of an industry and updating of the technology.

Description

technical field [0001] The invention relates to the technical field of distribution network risk analysis methods, in particular to an online risk assessment method for an intelligent distribution network. Background technique [0002] With the rapid growth of my country's power demand and the gradual relaxation of power market regulation, the scale of the power grid continues to expand, and large-scale power outages have occurred many times around the world in recent years, making the safety of power system operation increasingly a concern of domestic and foreign electric power researchers. the key of. How to ensure that the distribution network system can maintain stable operation and normal power supply, and ensure that the power system provides safe and economical power to users at an acceptable risk level and at the lowest possible cost has become an important task for the power sector. [0003] For a long time, in order to improve the economy of system operation, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCG06Q50/06
Inventor 王利利王璟黄泽华李锰李鹏李科李秋燕蒋小亮
Owner STATE GRID CORP OF CHINA
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