应用于变电站自动化系统的无线传感器网络技术

通信技术是变电站自动化赖以实现的关键技术之一。文章根据变电站自动化系统的特点，提出一种基于分簇路由的2层架构变电站自动化系统无线传感器网络(wireless sensor network，WSN)组网方案，该方案在过程层采用WSN，在间隔层、变电站层采用以太网。文章对该方案具体实施中的传感器节点能量供给、数据融合与分簇路由算法、可靠性与安全技术、WSN接入以太网等关键技术给出了初步解决办法，最后阐述了WSN实际应用于变电站自动化系统需进一步研究的问题。文章提出的有线通信网络与无线通信网络相结合的2层架构组网模式是对变电站自动化系统通信网络的一种有益探索。

Application of Wireless Sensor Networks in Substation Automation Systems

Communication technology is one of the key technologies on which the substation automation system (SAS) depends for implementation. According to the features of SAS, a networking scheme for wireless sensor network (WSN) using the cluster routing based on the two-layer structure is proposed, in which the WSN is adopted in process level and Ethernet is adopted on bay level and station level. A preliminary solution for concrete implementation of key technologies, such as energy supply of sensor nodes, data integration, cluster routing, reliability and security means and the integration of WSN with Ethernet, is presented. Finally, the problems to be further researched, which are related to the practical application of WSN in SAS, are expounded. The proposed two-layer networking structure to integrate wire communication network with WSN is a beneficial exploration for the communication network for SAS.