Quantity measurement evaluation method and system considering information physical coupling characteristics and information disturbance
A cyber-physical and measurement technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as threats to the safe and economic operation of smart grids, hidden dangers to information system security, etc.
Active Publication Date: 2019-10-29
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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[0127] 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.
[0128] 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:
[0129] 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.
[0130] 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 quantity measurement evaluation method and system considering information physical coupling characteristics and information disturbance. The method comprises the following steps: considering information disturbance influence; establishing a mapping relationship of the measurement data from the measurement information source end to the measurement information terminal; meanwhile, based on the physical coupling characteristics of power information, establishing the association relationship between power control center side acquisition measurement and power nodes. Branchquantity measurement, node quantity measurement and comprehensive quantity measurement are defined, a power grid quantity measurement evaluation system considering information physical coupling characteristics and information disturbance is established so as to reflect the state observability degree of the power system considering network attack threats, and technical guidance is provided for planning design and optimal protection of a measurement system. According to the invention, evaluation of the state observability degree of the power system considering the information physical couplingcharacteristics and the information disturbance is realized, and a technical idea is provided for weak link discovery and re-optimization of 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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Login to View More IPC IPC(8): H04L12/24H04L12/26H02J13/00
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