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Power distribution network CPS protective method based on bounded rationality

A security defense and distribution network technology, applied in the field of power transmission and distribution, can solve the problem of not being able to accurately grasp the characteristic strategy set and benefit set

Active Publication Date: 2018-06-19
NORTHEASTERN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

It is based on the premise of bounded rationality: (1) Due to the influence of a large number of uncertain factors, no participant can accurately grasp the characteristics, strategy sets and benefit sets of all other participants

Method used

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  • Power distribution network CPS protective method based on bounded rationality
  • Power distribution network CPS protective method based on bounded rationality
  • Power distribution network CPS protective method based on bounded rationality

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Embodiment Construction

[0059] In order to make the technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0060] Such as figure 1 - a kind of distribution network CPS security defense method based on bounded rationality shown in Fig. 5, concrete steps are:

[0061] Step 1: Obtain multi-source data of the power grid, including meteorological data, distribution network equipment data, distribution network operation data, residence time of historical attackers, average response time, average repair time, etc., from both physical systems and information systems On the one hand, a risk assessment model is established to describe the risk value of each line; historical attackers include physical attackers and information attackers in the distribution network in the past few years, physical attackers incl...

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Abstract

The invention discloses a power distribution network CPS protective method based on bounded rationality. Equipment data of a power distribution network, running data of the power distribution network,the residence time of a historical attacker, the average reaction time, the average restoration time and other types of power grid multi-source data are fully utilized, and comprehensive power distribution network CPS risk assessment indexes are established on the basis of two aspects including a physical system and an information system, so that all line risk assessment results effectively helpa defense building party to select defense building strategies through a game learning method based on bounded rationality. A defense building efficiency value corresponding to each attack and defensebuilding strategy is obtained from two aspects of economic benefits and safety, a logarithm synthetic method is adopted to obtain final expected efficiency and average efficiency when the defense building party employs different strategies, dynamic differential equations are adopted to represent dynamic change rates when the attacker and the defense building party select certain strategies, and then a dynamic differential equation group of a game learning model is established to obtain power distribution network CPS protective satisfactory strategies.

Description

technical field [0001] The invention relates to the technical field of power transmission and distribution, in particular to a CPS security defense method for a distribution network based on bounded rationality. Background technique [0002] With the continuous development of smart grid construction and the large-scale access of distributed power sources and electric vehicles, the distribution network has gradually developed into a distribution network CPS with various CPS typical characteristics, and its dependence on information networks is increasing. high. Due to the great changes in distribution network structure and operation management, if modern technology cannot be used to study an effective and reliable distribution network security defense strategy selection method, it will be difficult for distribution network to effectively deal with various sudden and cascading failures to meet user safety. The need for a reliable power supply. Therefore, it is urgent to carr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06H04L29/06
CPCG06Q10/0635G06Q50/06H04L63/1416
Inventor 刘鑫蕊孙秋野张化光赵汀汪刚杨珺吴泽群原欣
Owner NORTHEASTERN UNIV
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