5G technology has been widely used in power systems due to its high speed, low latency, and wide connectivity. At the same time, the power wireless private network designed specifically for the power system provides solid support for the stable operation of the power grid with its high reliability, safety, and scalability. With the development of new power systems, the demand for power communication is growing rapidly. By combining the advantages of 5G and power grid, a public dedicated integrated communication terminal is designed to improve the efficiency and intelligence level of power grid communication, while ensuring business security and efficient operation. The application testing of the intelligent distribution station building scheme has verified the terminal's ability to handle massive data, high bandwidth communication, and data security. The electrical performance of the terminal fully meets the standards of the power industry and has broad application prospects in the field of power business adaptation.
KEYWORDS: Data modeling, Internet of things, Instrument modeling, Performance modeling, Matrices, Environmental sensing, Network security, Information security, Education and training, Data acquisition
With the digitalization of power grids and the development of new power systems, more and more IoT terminals are used in various scenarios of power grid business transmission and distribution, so as to realize full perception of system status and full service penetration in all links of electric energy production, transmission and consumption, and ensure the high-quality construction of power grids. The explosive growth of the number of IoT terminals (such as sensor devices, inspection robots, etc.) has transformed the system IT infrastructure from "boundary" to "borderless", and the network security boundary is gradually disintegrating, so the continuous anomaly detection security of power IoT terminals connected to the power grid system is becoming more and more important. To solve this problem, this paper proposes an anomaly detection method for power IoT terminals in a zero-trust environment. In this method, a BSREM credibility evaluation model based on behavioral sequence is designed to complete the anomaly detection task of IoT terminals, improve the information learning ability of the model by maintaining the information matrix, and expand the adaptation scope of the method. Finally, this paper uses simulation comparison to verify the BSREM model and LightLog model to evaluate the credibility of the device's traffic behavior and activity log. The results show that the BSREM model can complete the credibility evaluation task more efficiently.
KEYWORDS: Data transmission, Inspection, Telecommunications, Data communications, Environmental monitoring, Network architectures, Wireless communications, Power grids
Under the ground that the next generation of power systems is constructing, our research work focuses on the core capabilities of power communication networks for transmission lines, including coverage, service-bearing capacity, flexibility and convenience, and technical security. We propose a convergence solution of heterogeneous networks to form a stable and reliable communication link based on 5G, ad hoc networks, and other technologies to solve the problem of poor network coverage in remote areas and realize data collection and remote control in areas without signal coverage. This system supports the establishment of intelligent monitoring and inspection of overhead transmission lines, offers an early warning service network system, and promotes the improvement of power digital space holographic perception and interconnection capabilities. Finally, we will realize an all-time communication named “anytime, anyplace, always online.”
The State Grid actively promotes the development of a new power system. The internet of things for power transmission and transformation equipment, for example, is a significant way to open up the "last mile" of power grid communication. In this paper, we design a sensor terminal serial communication module to meet the internet of things business requirements for power transmission and transformation equipment while also realizing sensor data collection and reporting functionality. The results of the tests show that the serial communication module designed in this paper can help the sensing terminal and reliably report sensing data to the upper-layer access node.
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