Abstract
This paper analyses the structure and characteristics of ubiquitous power Internet of things (UP-IoT) from four levels: the perception layer, network layer, platform layer and application layer. The robustness of UP-IoT is defined from the perspective of system structure, and the internal and external disturbance factors of robustness are analysed. According to the scale-free characteristics of complex network, a robustness evaluation strategy for UP-IoT based on identification of important nodes is proposed. A set of robustness evaluation indexes, including degree centrality, betweenness centrality, closeness centrality, maximum connectivity and connectivity factors, are established to quantify the importance of nodes. The model in this paper is used to analyse the UP-IoT network model with 12 nodes and verify the feasibility of the evaluation strategy.
Highlights
At present, the rapid development of economy and society has an increasing demand for energy, which puts forward higher requirements for the reliability of power supply, and for the informatization and intelligence level of power production, power grid operation and maintenance, customer service, operation and management and other aspects
The construction of UP-IoT will rely on the strong smart grid, and extend the current power communication network
The robustness evaluation strategy of UP-IoT is to establish a set of reasonable evaluation indicators, quantify the importance of network nodes by calculating the value of various indicators, determine the "key few" nodes that have a great impact on network functions from a macro perspective, and identify the key parts that determine the robustness of the network
Summary
The rapid development of economy and society has an increasing demand for energy, which puts forward higher requirements for the reliability of power supply, and for the informatization and intelligence level of power production, power grid operation and maintenance, customer service, operation and management and other aspects. In order to adapt to the new situation, generate new drivers of growth, create new businesses and open up new markets, and seize opportunities and initiative in the new round of reform, power grid enterprises will build a smart service system. This system integrates advanced information technology with strong smart grid [1]. Cloud computing, Internet of things, mobile Internet, artificial intelligence, block chain, edge computing and other technologies are widely used in the system It has omni-directional state perception, efficient information processing, convenient and flexible application and other capabilities. It is necessary to design robust evaluation strategies according to the characteristics of UP-IoT, maintain real-time attention to network functions, and provide guidance for the construction, operation and control of UP-IoT
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