This work presents an approach for the planning of transmission systems by employing mixed--integer linear programming to obtain a cost and operating characteristics optimized system. The voltage loop equations are written in a modified form, so that, at the end of the analysis, the model behaves as a DC power flow, with the help of the two Kirchhoff`s laws, exempting the need of interaction with an external power flow program for analysis of the line loading. The model considers the occurrence of contingencies, so that the final result is a network robust to the most severe contingencies. This whole technique is adapted to the regional electric power transmission subsystems. (author) 9 refs., 4 figs.
Costa Bortoni, Edson da;  Bajay, Sergio Valdir; Barros Correia, Paulo de;  Santos, Afonso Henriques Moreira; Haddad, Jamil 
- Quadrante Softwares Especializados Ltda., Itajuba, MG (Brazil)
- Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica
- Escola Federal de Engenharia de Itajuba, MG (Brazil)