220 kV变电站智能化改造技术要点及方案实施

杜尔伯特220 kV数字化变电站升级改造为智能变电站.一次设备中,将原电子互感器改造为新型电子互感器配合合并单元的模式.二次设备中,将原有监控系统更换为一体化监控系统;保护及安全自动装置利用了近年新扩建的两套线路,同时将对侧装置软硬件升级为与本侧同版本的保护,利用软件保护定值或算法完成补偿;其余线路保护、主变压器保护、...

Technical Point and Scheme Implementation of Intelligent Transformation of 220kV Substation

Dorbod 220 kV digital substation is upgraded to an intelligent substation.In the primary equipment,the original electronic transformers are transformed into a new type of electronic transformer combined with the merging unit.In the secondary equipment,the original monitoring system is replaced by the integrated monitoring system;the protection and safety automatic devices use two sets of newly expanded lines in recent years,and the software and hardware of the opposite side device are upgraded to the same version of the protection with the same side.The software protection setting or algorithm is used to complete the compensation.The rest of the line protection,main transformer protection,bus protection and bus tie protection have been replaced.The communication protocol of the electricity metering system has been upgraded,the non gateway meters use SV network sampling,and the gateway meters use point-to-point sampling.After the transformation,the purpose of optimizing resource allocation and improving operation index is realized,which provides reference for upgrading digital substation to intelligent substation.