环网分布式母线保护装置就地化实现探讨

发布时间：2018-04-26 08:45

本文选题：智能变电站 + 就地化　；参考：《电力系统保护与控制》2015年06期

【摘要】：针对层次化继电保护控制系统中保护装置就地安放的需求,目前集中式母线保护直接就地安放存在功耗过大、回路复杂等问题,提出了基于HSR环网的分布式母线保护就地化实现方案。该方案中,各间隔配置独立的间隔子机,独立采集各个间隔的采样和开关量数据。通过双重冗余HSR环网将子机互联并共享数据,采用全主式设计方案,各子机独立逻辑判断,改进的插值同步技术使得母线保护不依赖于外界对时,同时增加光旁路设计,降低了母线保护运维的复杂性。该母线保护样机成功通过专业机构检测和试运行,验证了该方案的可行性。
[Abstract]:In order to meet the need of local installation of protection devices in hierarchical relay protection control system, there are many problems such as excessive power consumption and complex loop in direct local placement of centralized busbar protection at present. A local scheme of distributed bus protection based on HSR ring network is proposed. In this scheme, each interval is equipped with an independent spacer, and the sampling and switching data of each interval are collected independently. By using dual redundant HSR ring network, the subcomputers are interconnected and shared data. The whole main design scheme is adopted, and each subunit is judged by independent logic. The improved interpolation synchronization technology makes the bus protection independent of the external timing, and the optical bypass design is added at the same time. The complexity of operation and maintenance of busbar protection is reduced. The prototype of busbar protection has been successfully tested and tested by professional institutions, and the feasibility of the scheme has been verified.
【作者单位】：南京国电南自电网自动化有限公司;国网江苏省电力公司经济技术研究院;
【分类号】：TM774

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