智能变电站合并单元智能终端集成技术探讨

智能变电站的发展推动了设备向集成和整合的思路发展。对合并单元智能终端集成装置的需求进行分析,论述了其能有效减少设备数量、减少网络设备投资、节省屏柜空间等优势,对其采用的三种技术方案进行对比分析并给出推荐的集成方案。对集成装置涉及的关键技术问题进行讨论,分别从采样值(SV)和通用面向对象变电站事件(GOOSE)共网口传输、装置CPU资源整合、同步对时整合、检修压板整合、电源功率和人机接口等方面进行详细论述,并针对其应用的电压等级、保护装置接口改进、组网传输和检修调试等问题进行讨论。

Discussion on Integration Technology of Merging Unit and Intelligent Terminal in Smart Substation

The development of smart substation is promoting and improving the integration of devices. The requirements of the integrated device of merging unit and intelligent terminal are discussed as are the advantages, such as reducing device quantity and network equipment investment, and saving cabinet space. Three technology schemes of integrated devices are presented and the recommended integration scheme is given and analyzed. The key technological problems involved by the integrated devices are treated, including the share of the same network port of sampling value (SV) and generic object-oriented substation event (GOOSE), the resource integration of CPU, the integration of synchronization and maintenance platen, the power supply, and the man-machine interface. Problems such as the applied voltage classes, the port improvement of protection devices, the transmission of network, and the maintenance are presented.