智能变电站层次化继电保护配置优化的探讨

Discussion on Hierarchical Relay Protection Configuration Optimization of Smart Substation

讨论了智能变电站中层次化继电保护系统的配置方式,就目前就地保护配置复杂、保护整定繁复、后备保护逐级配合时间长、站域保护工程应用不便等多方面的问题,提出了就地保护的部分后备保护功能向站域保护、区域保护迁移的配置策略;并基于一次设备建模、变电站信息交互来实现就地保护定值自动整定、与就地保护协同的站域后备保护的思路和实例,降低现有继电保护信息流的横向耦合,简化就地保护配置,提升站域后备保护性能。

The relay protection configuration in smart substation is discussed. According to the complicated function configura- tion, uncomfortably setting, long operation time of step - by - step backup protection and inconvenient engineering application of station - domain protection, it is proposed that the part of backup protection function is transferred to the station - domain protection or area protection. And based on primary equipment modeling and device information interaction, the ideas and examples are realized that is local protection setting sets by itself automatically and station - domain backup relay protection is cooperated with local protection to optimize local protection. It can reduce the transverse coupling in the existing relay protec- tion, simplify the local protection configuration and improve the performances of station - domain backup protection.