Research On Terminal Communication Access Network Technology Carrying Power Internet Of Things

With the rapid development of smart grid,the Internet of things terminals of power system will grow explosively and become more and more dependent on the communication network.The terminal communication access network has broken the limitation of voltage level now,covering the power business scope of access network,expanding from distribution and power consumption system to power transmission,transformation,storage,source and other business links.Scientific and efficient planning of terminal communication access network construction is imminent.Thisarticlestarts from the application scenarios of daily business fields such as accurate load control and distribution automation carried by the terminal communication access network in the power grid,comprehensively extends the current power grid production and operation,takes into account emerging business application scenarios such as distributed power generation and energy storage,comprehensive energy service and electric vehicle charging station(pile),and analyzes the technical indicators and communication requirements of various business scenarios,summarizes and refines the general service data attributes,and predicts the load density of the grid business.By Establishing a matching method corresponding to communication technology and grid business based on the optimal matching under multiple constraints,11 local business scenarios such as general scenario aware acquisition and 12 wide-area access scenarios such as distribution automation are obtained.The communication technology matching score is calculated from 13 dimensions such as bandwidth,delay,reliability and industrial maturity,Then we can recommend one or more communication technologies according to the score.While covering the existing power grid business scenarios,this matching model can also meet the selection requirements of access communication technology in future potential business scenarios.The matching model analyzes and refines the basic principles of terminal access network construction,which is comprehensive and forward-looking,and is of great significance for guiding the next step in the planning and construction of terminal communication access network in the new power system.