Technologies Review of Service Isolation in Smart Grid Communications

With the construction of smart grid, more and more services have been carried on the power information communication network. In order to ensure the reliability and security of the smart communication network, communication service in the network must be transmitted with security and isolation. By studying the current situation of multi-service bearer of power and analyzing the communication needs of power distribution service and the multi-service isolation requirements, this paper proposes implementation schemes of special wireless power network multi task operation and isolation based on the RAN-SHARING and physical isolation. Besides, it also puts forward the power service safety isolation technology, based on all-optical wavelength and optical label mixed switching technology, which eventually realizes service physical isolation in different security region and logic isolation in the same security region, provides the technical support for the multi-task bearing and accessing of future smart grid. The application results show that the scheme can effectively keep service executing safely and improve the power service level.