Identification method and protection method of key link in electric power communication network
A power communication network and key link technology, which is applied to the identification method and protection field of the key link of the power communication network, can solve the problems of low identification accuracy and reliability, and the operation characteristics of the power grid are not considered, so as to ensure the protection effect and the Reliability, comprehensive and reasonable considerations, good accuracy
Active Publication Date: 2022-06-24
湖南经研电力设计有限公司 +1
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[0005] However, the above studies only analyze the vulnerability of the power grid from the perspective of complex networks. The established topology model of the power grid currently only considers the characteristic parameters of the topology of the power grid, and does not consider the actual operating characteristics of the power grid. The influence of the power communication network and external factors makes the theoretical identification results of complex networks There is a large discrepancy with the actual grid, and the accuracy and reliability of identification are low
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[0046] like figure 1 Shown is a schematic flow chart of the identification method of the present invention: the method for identifying key links of a power communication network provided by the present invention includes the following steps:
[0047] S1. Model the power communication network to be analyzed, obtain a weighted network model, and obtain the shortest path set between any two points in the network; specifically, the following steps are used to model and calculate:
[0048] A. Mark all nodes and links in the power communication network to be analyzed with serial numbers, and use the variable e ij represents the actual distance of the link between node i and node j;
[0049] B. Calculate the shortest path between any two nodes by using the prior art, so as to obtain the shortest path set;
[0050] S2. According to the weighted network model and the shortest path set obtained in step S1, calculate and obtain the network reliability parameter when link protection is ...
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The invention discloses a key link identification method of a power communication network, which includes modeling the power communication network to be analyzed to obtain a weighted network model and obtaining the shortest path set between any two points in the network; The network reliability parameters of the network; each link in the network is protected in turn and the network reliability parameters of the link protection are obtained; the comprehensive importance of each link in the network is calculated; the key link identification of the power communication network is carried out. The invention also discloses a protection method including the key link identification method of the power communication network. The method of the invention can not only identify and provide protection for key links of the power communication network, but also has high reliability, good accuracy and high efficiency.
Description
technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a key link identification method of a power communication network and a protection method thereof. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy in people's production and life, bringing endless convenience to people's production and life. Therefore, the stable and reliable operation of the power system has become one of the most important tasks of the power system. [0003] The interconnection and intelligence of the power grid have improved the scale and operation efficiency of the power system, but at the same time it has also increased the uncertainty of the operation of the power system, thus greatly increasing the risk of large-scale power outages in my country's power grid. Large-scale power outages will seriously ...
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IPC IPC(8): H04L41/14H04L41/0654H04L43/0805H04L43/0811H04L67/12G06Q50/06
CPCH04L41/145H04L41/0654H04L43/0805H04L43/0811H04L67/12G06Q50/06
Inventor 张惠芳李沛哲肖劲鹏徐超徐志强肖振锋伍晓平何韵汪勇
Owner 湖南经研电力设计有限公司