基于10kV馈线负荷全转移约束下的变电站 全停校验模型研究及应用

Ｒesearch and Application of Full － stop Check Model for Substation Based on Full Load Transfer Constraint of 10 kV Feeder

摘要:

配电网 10 kV 供电线路可靠性要求越来越高，变电站是否具备全站停电升级改造和检修的条件，缺乏规程参 考和理论指导。基于配电网 N － 1 安全性准则，提出了变电站所属 10 kV 馈线负荷全转移的定义和条件，建立了变电 站全停校验模型，并通过实用算例对模型的准确性和实用性进行验证。实验证明该模型有效且能够为变电站是否具 备全停条件提供参考依据，具有借鉴意义。

Abstract:

The reliability requirements of 10 kV power supply lines in distribution network are getting higher and higher． Whether the substation has the conditions for upgrading and repairing during power failure of the whole station or not，there lacks the standard reference and theoretical guidance． Based on N － 1 safety criterion of distribution network，the definition and conditions of full load transfer of 10 kV feeder in substation are put forward，the full － stop check model for substation is established，and the accuracy and practicability of the proposed model are verified through practical examples． The experiments prove that the proposed model is effective，and it can provide reference for whether the substation has full － stop conditions or not，which has reference significance．