Abstract
In order to cope with the development trend of distribution network, the demand for terminal to have the ability of IoT has become increasingly prominent. This paper firstly expounds the development trend of low-voltage distribution network, and emphasizes the technical transformation of the core equipment of low-voltage distribution network-smart terminal; secondly, it puts forward the software and hardware architecture of smart terminal suitable for the IoT, and emphasizes the cooperative capability of the software and hardware platform; and then it introduces the key technologies of the smart terminal, integrates model standardization and virtualization technologies, realizes the plug and play of information flow, and supports application through engineering; finally, it analyzes the work plan of the next stage, and designs to improve the functions of the smart terminal.
Highlights
In order to realize the widespread sensing, data fusion, smart application and efficient operation and maintenance of the distribution network, as well as to support the optimization and improvement of operation and distribution and comprehensive energy services, the State Grid Corporation proposes to carry out the construction of the Internet of Things on the distribution equipment side and the Internet of Things on the customer side under the overall architecture of the smart Internet of Things system[1,2,3,4]
Located at the end of the whole power grid, the distribution area is directly connected with users to supply power to them, which is the junction of production and marketing and an important application scenario
Distribution transformer terminals and concentrators are deployed in the distribution area, which have the problems of function duplication and inability of data sharing
Summary
In order to realize the widespread sensing, data fusion, smart application and efficient operation and maintenance of the distribution network, as well as to support the optimization and improvement of operation and distribution and comprehensive energy services, the State Grid Corporation proposes to carry out the construction of the Internet of Things on the distribution equipment side and the Internet of Things on the customer side under the overall architecture of the smart Internet of Things system[1,2,3,4]. The functions of the terminal are relatively fixed and the coupling between modules is high, which is difficult to dynamically expand new functions such as main equipment condition monitoring and evaluation, distributed power supply and flexible load control, and cannot meet the requirements of customized functions and on-demand iteration of professional applications in various areas [6,7]. On the one hand, converged communication resources and plugand-play management technology have been proposed to ensure standardized access of end equipment and sharing of communication resources in distribution area and solve the problem of difficult operation and maintenance of terminals. With full consideration of service requirements of distribution applications, an open application development interface based on unified model and data management has been proposed to ensure the standardized development, dynamic loading and operation management of application and solve the problem that terminal functions are difficult to expand
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