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现有的SDH网络在电力系统的应用中出现了许多不足之处,随着电网信息化和数字化的发展,所需的传输带宽越来越宽、颗粒越来越大。目前关系电网安全运行的继电保护信号也采用光传输,很难满足将来电网信息化高速发展的需求。自动交换光网(Automatically Switched Optical Network,ASON)在底层光纤网络之上引入以IP为核心的控制和管理技术可以管理端到端的波长业务,实现了动态连接,可以提供好的网络保护恢复性能,可以按照需求分配网络带宽,满足不同网络服务需求,是未来电力通信传输网的发展方向。
The existing SDH network has many shortcomings in the application of power system. With the development of informatization and digitalization of power grid, the required transmission bandwidth is wider and wider, and the particles are larger and larger. At present, the relay protection signals related to the safe operation of the power grid also use optical transmission, so it is difficult to meet the demand of the rapid development of information network in the future. Automatically Switched Optical Network (ASON) Introduces IP-based control and management technologies on the underlying optical network to manage end-to-end wavelength services, provide dynamic connectivity, and provide good network protection and recovery performance. According to the needs of the network bandwidth allocation to meet the needs of different network services, power transmission network is the future direction of development.