STPGTN–A Multi-Branch Parameters Identification Method Considering Spatial Constraints and Transient Measurement Data

Transmission line (TL) Parameter Identification (PI) method plays an essential role in the transmission system. The existing PI methods usually have two limitations: (1) These only model for single TL, and can not consider topology connection of multiple branches simultaneous identification. (2) Transient bad data is ignored by methods, random selection terminal section may cause distortion serious consequences. Therefore, a multi-task considering TLs’ spatial constraints massive electrical proposed this paper. Graph Attention Network module used to draw TL into node calculate its influence coefficient network. Multi-Task strategy Hard Sharing identify conductance simultaneously. Experiments show that has good accuracy robustness. Due consideration constraints, also obtain more accurate values under different training testing conditions.