Algorithms for automatic generation of one-line diagrams

Three placement algorithms are presented that may be employed for the automatic generation of one-line diagrams of power systems. To demonstrate the ability of these algorithms, a one-line diagram auto generation software program (ODAG) has been developed. ODAG has been implemented using the Java programming language so that it is network accessible over the Internet as a one-line diagram design tool. Algorithms implemented in ODAG include Spring Embedder, Rooted Tree and Controlled Spring Embedder with Grid Aligning. They autogenerate one-line diagram layouts that are aesthetically pleasing with acceptable readability and user friendliness. Two networks have been used as examples in the paper to illustrate the one-line diagrams autogenerated by these algorithms.