Research on Key Technologies of communication and computing in Smart Grid

Qinghai Ou, Qingsu He, Shiliang Xu, Lingkang Zeng, Xiao Liao
2016 Proceedings of the 6th International Conference on Information Engineering for Mechanics and Materials   unpublished
Research on the data model of intelligent power distribution system and study the typical characteristics. Proposed the communication scheduling model of smart distribution network communication system, and find the node model to enhance the capabilities of data synchronization processing in the case of a sharp rise in the amount of data nodes of data. Then, research on the key technology and explore the theory of the collaboration of communicate scheduling and computing power. To build
more » ... tion models of the entire system of intelligent distribution communications and computing. On this basis, going further explore distributed intelligent data processing technology and device virtualization. In the end, to establish a collaborative simulation platform of communication and calculation in the typical application of the intelligent distribution network environment. To test the results, meanwhile we should provide simulation experiment platform to against the adjustments and changes would be happen in the development of intelligent distribution network. Introduction Along with the construction and development of the power system primary equipment, the second system construction and the communication automation technology, the control SCADA system of the power grid is becoming more and more mature. To realize automation control and deep effect on the production and operation of power grid construction, and greater economic benefits, to actively promote everything in good order and well arranged "strong smart grid" construction, will inevitably face some problems become increasingly prominent in the new development conditions. For intelligent distribution network communication network, intelligent distribution network system platform and based on the development and upgrade of distribution network communication system and business, these problems can't be ignored. First, the intelligent distribution network communication system takes on a lot of business data transmission in the terminals of the intelligent network [1] . With the wide access of new energy power, the distribution network is connected with renewable power, and the data for the dispatch, control and management of micro network system is necessary for the distribution network communication system. At the same time, carrying out the user side demand management and the use of electric information monitoring, also need the data based on the user and the system of two-way interactive .The data also increased the load of distribution network communication system. Another important demand reflected in the traditional network equipment maintenance cycle model to condition based maintenance mode transition process, inevitably need to support the equipment monitoring and control functions of sensing data were collection, transmission, bearing mass sensing data transmission with network communication system will be faced with large load and high concurrency problem [2] . The actual development needs contribute to the requirements for the difference of the distribution network communication system in wide area communication network and grid SCADA communication system (relatively smaller amount of data load and high reliability) special functions and features. The intelligent distribution network communication system faces several 262 Power line carrier communication technology, hereinafter referred to as PLC, refers to the use of the existing distribution network as a transmission medium, to achieve data transmission and information exchange of a technology. The technology appeared in the early last century, the main application of power line transmission telephone sign [8] . Generalized PLC technology contains two large branches, is for the automation of distribution network, referred to as DLC (power line carrier); other one is oriented to user lines and indoor line, said PLC. The advantage of it is that it uses the existing low voltage power network as the channel of information transmission, so that it does not need to carry on the investment and construction of the new communication network. The core issue of low voltage power line carrier communication is a carrier signal modulation and demodulation, that is, power carrier modulation and demodulation chips. With the development of low voltage power carrier communication technology, the rate of power carrier communication, the amount of data transmission and anti-interference ability have been greatly improved, which laid the material foundation for the market of power carrier communication [7] [8] . Considering the above factors, Suggestions for the construction of the power distribution network is given priority to with optical fiber private network communication, broadband wireless private network and medium voltage power line carrier communication technology as a supplement. In some parts of the electric power communication private network can't cover area, can use communication operators of GPRS/CDMA / 3G public communication as a supplement, but public communication mode should be limited to not need the function of remote control terminal communications applications [8] . From the foregoing, in a typical intelligent distribution network in heterogeneous converged network there are a variety of access networks. For example: the GPRS / CDMA / 3G communication technology for wireless networks, industrial Ethernet and power line carrier communication network, the realization of the multi network fusion. In a heterogeneous network coverage range, service terminal can be according to the various access network real-time performance guarantee QoS. Through the network of the received signal strength to ensure the
doi:10.2991/icimm-16.2016.50 fatcat:ot4t46u7wjbkvijj475ksvwlem