220kV/110kV电磁环网闭环试验对象的选择

Test object selection of closed-loop operation for 220 kV /110 kV electromagnetic loop network

文中以湖南电网为基础,结合电网运行的经验确定闭环区域选定的基本原则,以此为基础选定可闭环的电磁环网,并从短路电流水平、N-1校核、网损和保护通信等方面分析初选对象的可行性并确定待选对象。针对待选对象,在多负荷水平下对其网损、冲击电流和暂态稳定进行校核,并制定有针对性的预控措施。

Combining with the power grid operation experience,the basic principle to determine the loop region selection is determined in Hunan power grid. On the basis of the principle,electromagnetic loop network is selected,and the candidate test object is selected based on the analysis of the short-circuit current level,N-1 check,network loss,protection configuration and communication configuration of the primary object. The power loss,the impulse current and transient stability are checked at different load level,and the specific pre-control measures are established.