With the large-scale interconnection of the power grid and the continuous expansion of power business scope, higher demands are placed on the efficient utilization of satellite network resources and the adaptability of power business to satellite communication methods. The advantages of hybrid networking of high orbit and low orbit satellites in typical power application scenarios are studied and analyzed, and a hybrid networking communication architecture for power applications is constructed. Then, based on this architecture, a satellite network switching method based on improved entropy weighting algorithm and grey relational analysis is designed and studied.
The current conventional high-voltage transmission line monitoring method mainly obtains line parameters through fiber optic sensing equipment, and analyzes the parameters to grasp the actual load situation of the line, which leads to poor monitoring effect due to the lack of design of load flow threshold. In this regard, a monitoring method for high-voltage transmission lines based on self-assembled MAC access is proposed. By constructing the reward function, the routing monitoring algorithm is designed and the image monitoring module structure is designed. Combined with the heat balance equation, the line load flow value is calculated and the judgment of the line load condition is realized by setting the flow threshold. In the experiments, the monitoring performance of the proposed method is verified. The experimental results show that when the proposed method is used for transmission line monitoring, the system data loss rate is low and has a more desirable monitoring effect.
This study aimed to use the combined advantages of Space–Air–Ground Integrated Network (SAGIN) and BeiDou short-message technology to realize information interaction between various units within the system perception layer, considering the difficulties of poor communication in remote areas, limited coverage of existing ground networks, and the inability to send monitoring information of high-voltage transmission lines in a timely manner. The sensing terminal was used for terminal analysis and calculation, and the key exception and alarm information were edited into short messages to compensate for the disadvantages of BeiDou short-message communication technology. External communication used the BeiDou short-message communication technology. This method could effectively solve the transmission problem of key data of online monitoring systems in remote areas.
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