Automatic generation strategy of single-line diagrams based on grouped-primitives

This article study the automatic generation Strategy of single-line diagrams, there is a situation that it is difficult to generate the layout which contains “T” type wiring line while take the substation as unit. According to the characteristics of the “T” type wiring line, analyzing it as a grouped-primitive grouped by four gridding cells, proposing a kind of automatic generation strategy of single-line diagram based on grouped-primitives, forming the initial layout through moving, rotating and overlapping operation. Optimizing the grouped-primitives and layout through simulated annealing algorithm and compare the value of the objective function, matching it with the most appropriate grouped-primitive, the reach the optimal layout of the single-line diagram. Quoting the partial electric network model of somewhere, testified the correctness and the effectiveness of the strategy.