In order to solve the problem that it is difficult for traditional methods to effectively analyze the generation and propagation process of large-scale cascading failures in power grid macroscopically, a power network modeling method based on complex network is proposed, which strips the power network into physical layer and functional layer two-layer networks. aiming at the two-layer network, the construction method and process of power network model based on complex network theory are proposed, and the calculation models of network characteristic analysis index of two-layer network are proposed respectively. At the same time, an example analysis is carried out based on the actual data, and the complex network models of physical layer and functional layer are built respectively, which provides guidance for the follow-up analysis of the power grid.
In order to solve the problem that it is difficult to fully identify the weakness of the whole system by a single index established from the point of view of power network topology and power flow characteristics, a weak point identification method of distribution network based on global performance analysis of complex network model is proposed. The complex network models of physical layer and functional layer are built respectively, and the measurement systems and analysis methods based on degree, intermediate number and aggregation coefficient of complex network model are established. The key nodes, weak links and related properties of the power grid are analyzed from different perspectives to provide guidance for the follow-up layout planning of the power grid.
Aiming at the problems of low efficiency and untimely monitoring of traditional monitoring of transmission line tower slopes, this paper uses Beidou static relative positioning technology to conduct monitoring research on transmission line tower slopes. Taking the carrier phase observation value or the phase measurement pseudorange as the basic observation value, through continuous observation, sufficient observation data is obtained, and after adjustment calculation, the positioning accuracy of transmission tower slope monitoring is improved. Finally, a transmission tower slope monitoring platform is built, the slope monitoring data is processed by the Laida criterion, and the reliable monitoring data is obtained by using the baseline vector solution, and the slope stability is analyzed according to the data, feasibility and reliability of the monitoring platform.
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