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Analysis method for power outage risk and reliability based on full-web topology

An analysis method and reliability technology, applied in the direction of electrical digital data processing, data processing applications, instruments, etc., can solve problems such as inaccurate risk assessment results, inability to adjust the system in time, and misjudgment of the outage of vital components

Inactive Publication Date: 2015-03-04
STATE GRID CORP OF CHINA +3
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Problems solved by technology

There are many reasons for component outages. The existing technology mainly constructs component outage models based on certain outage factors; when the topology of the entire network changes, the system cannot be adjusted in time, causing misjudgment of some components outages , resulting in inaccurate risk assessment results and affecting the correctness of decision-making

Method used

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  • Analysis method for power outage risk and reliability based on full-web topology
  • Analysis method for power outage risk and reliability based on full-web topology
  • Analysis method for power outage risk and reliability based on full-web topology

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Embodiment Construction

[0053] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0054] Such as figure 1 as shown,

[0055] (1) First obtain the model and measurement of the whole network from the platform, including the transmission network and distribution network. If it is automatically calculated in real time, it will not enter the research state. If it is manually started, it will automatically enter the research state, that is, to study Data can be calculated, which can be read into maintenance, modify the load and change some operating modes;

[0056] (2) For the components to be studied in the whole network, carry out the probability calculation under the current environment, and give the probability value;

[0057] (3) Conduct static security analysis of the current model, and give out-of-limit equipment and power-off equipment;

[0058] (4) For off-limit equipment, it is converted to load shedding ac...

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Abstract

The invention provides an analysis method for power outage risk and reliability based on full-web topology and relates to the analysis method for the power outage risk and reliability of a power grid. After the full-web topology is changed, a risk assessment result is inaccurate. The analysis method comprises the following steps: acquiring models and measuring data for a power transmission network and a power distribution network; judging whether a calculating object of the data is real-time data or research data; acquiring modifying information and modifying the models and the measurement data; confirming a probability value; performing static safety analysis and giving an out-of-limit device and a power outage device; for the out-of-limit device, switching into a cutting load according to the sensitivity; performing power outage risk calculation and reliability index calculation; when the calculated data is the research data, comparing the calculated data with the latest real-time data calculation result; alarming when the research calculation result risk is more than the real-time data calculation result. According to the technical scheme, the research data calculation is added, and when overhauling information, load information and running state are changed, the outage risk is compared, so that the assessment accuracy and the decision correctness are promoted.

Description

technical field [0001] The invention relates to a power grid blackout risk and reliability analysis method. Background technique [0002] Power systems are made up of a large number of components. The root cause of system failure is the outage of these components, and the premise of risk assessment of the power system is to determine the outage model of the components. There are many reasons for component outages. The existing technology mainly constructs component outage models based on certain outage factors; when the topology of the entire network changes, the system cannot be adjusted in time, causing misjudgment of some components outages , resulting in inaccurate risk assessment results and affecting the correctness of decision-making. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, and to provide a power outage risk and reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06Q50/06
Inventor 王康元吴琳周炜谭勇桂何安宏吴雪琼王成现承轶青王纪军程伟华陈志刚庄岭谭晶黄高攀
Owner STATE GRID CORP OF CHINA
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