Automatic generation for single-line diagram of distribution network

Single line diagram of distribution network in power system played a key role to the daily maintenance, it has long been relying on manual drawing, but with the increase in the number of equipment in distribution network, artificial drawing difficulty increases gradually, and artificial drawing errors have been more, for the production and maintenance of distribution network has also had a negative effect, the automatic drawing becomes necessary, therefore, in order to optimize the layout of the graphic effect, this paper puts forward distribution network based on simulated annealing algorithm multi-objective optimization model for single line diagram. Single line diagram require intersection at least, the total length of the lines between elements must be shortest, on the basis of the paper is divided into four regions, balancing the number of elements in four areas, to further enhance the readability of single line diagram and layout of the beautiful. Comprehensive above points of multiple targets, This model not only consider the ordered arrangement of elements, and balance density of the figure, prevent too dense, graphics can be automatically updated along with the change of mode.