Quantity evaluation method and system considering cyber-physical coupling characteristics and information disturbance
A technology of information physics and measurement, applied in transmission systems, circuit devices, electrical components, etc., can solve problems such as hidden dangers of information system security and threats to the safe and economic operation of smart grids
Active Publication Date: 2022-04-15
NANJING NARI GROUP CORP +3
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Problems solved by technology
On the one hand, the penetration of information and communication technology has improved the informatization and intelligence of power grid operation, and on the other hand, it has brought hidden dangers to the security of information systems, which may threaten the safe and economic operation of smart grids.
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[0125] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0126] A measurement evaluation method of the present invention that takes into account information physical coupling characteristics and information disturbance, see figure 1 shown, including the following steps:
[0127] Step 1) Establish a measurement information transmission network model under normal operation of the measurement information transmission network according to the physical coupling characteristics of power information.
[0128] The power information physical coupling characteristic lies in that the power grid sensing element uses its own communication module to communicate with the power control center while sampling the state of the power grid, and transmits the measurement ...
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The invention discloses a measurement measurement evaluation method and system considering information-physical coupling characteristics and information disturbance. The method includes considering the influence of information disturbance and establishing a mapping relationship of measurement data from a measurement information source end to a measurement information terminal. At the same time, based on the power cyber-physical coupling characteristics, establish the relationship between the power control center side acquisition measurement and the power node, define the branch measurement, node measurement and comprehensive measurement, and establish the information-physical coupling characteristics and information disturbance. The power grid measurement and evaluation system reflects the considerable state of the power system taking into account the threat of cyber attacks, and provides technical guidance for the planning, design and optimal protection of the measurement system. The invention realizes the evaluation of the appreciable degree of the state of the power system taking into account the information-physical coupling characteristics and information disturbance, and provides technical ideas for the discovery and re-optimization of weak links in the measurement system.
Description
technical field [0001] The invention relates to the technical field of electric power automation, in particular to a measurement evaluation method and system taking into account information physical coupling characteristics and information disturbance. Background technique [0002] With the development of the smart grid, the power grid is already a system deeply coupled with the information communication system and the physical power system. On the one hand, the penetration of information and communication technology has improved the informatization and intelligence of power grid operation, and on the other hand, it has brought hidden dangers to the security of information systems, which may threaten the safe and economic operation of smart grids. The potential security issues of the new generation power system are no longer isolated physical grid security issues, but also information security factors, and the boundaries between the two are becoming increasingly blurred. Th...
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IPC IPC(8): H04L41/14H04L43/08H04L41/0823H02J13/00
CPCH02J13/0013H04L41/145H04L41/0823H04L43/08
Inventor 赵丽莉倪明李威薛峰赖业宁童和钦李悦岑张倩杨毅孙国强
Owner NANJING NARI GROUP CORP