Method for defense of central information processing system of smart distribution grid

Abstract

The invention discloses a method for defense of a smart distribution grid. The method for defense of the smart distribution grid comprises the steps that (1) a central information processing system is initialized; (2) an n-unknown Boolean function f (x) and the constraint conditions of the algebraic immunity and the function non-linearity degree are set; (3) the potential energy difference and the total energy difference of the n-unknown Boolean function f (x) and a new function f'(x) are calculated, wherein the total energy is the sum of potential energy and kinetic energy; (4) whether an inner loop iteration factor i is larger than the number N of times of inner loop iteration or not is judged, if yes, the step (5) is executed, and if not, i=i+1, and the step (1) is executed; (5) annealing is conducted on the central information processing system; (6) when the potential energy Hpot of the n-unknown Boolean function f (x) reaches a set potential energy value, namely, the magnetic field intensity (please see the symbol in the specification) is equal to zero, and then the globally optimal solution of the Boolean function is obtained. By the adoption of the method for defense of the smart distribution grid, global optimum is achieved through the characteristics of self quantum fluctuation, the search efficiency is high, the ability of the smart distribution grid to defend external hostile attack can be improved, and efficient and safe communication of the smart distribution grid is achieved.

Description

technical field [0001] The invention relates to the field of smart grid information security, in particular to a defense method for a central information processing system of a smart distribution network. Background technique [0002] Under the development trend of today's information technology, intelligentization has become the inevitable way for the development of intelligent distribution network. The smart distribution network applies the most advanced wireless sensor network technology to the power system, so that it has the characteristics of self-healing, interaction, compatibility, integration, optimization and security that the existing power grid does not yet have. However, due to the connection of a large number of smart terminals Income and external malicious attacks and other issues have raised new security issues for the development of smart distribution networks. How to ensure that the smart distribution network operates more safely and reliably while using w...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a defense method for the central information processing system of the intelligent distribution network, which is used to solve the problem that the intelligent distribution network is maliciously attacked by the outside during the communication process. By using the present invention, the intelligence can be improved The ability of the distribution network to resist external malicious attacks, to achieve more efficient and secure communication in the smart distribution network

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