FÉO, Alexandre Estácio; http://lattes.cnpq.br/0699865094782564 (Universidade Federal de ItajubáBrasilIESTI - Instituto de Engenharia de Sistemas e Tecnologia da InformaçãoPrograma de Pós-Graduação: Mestrado - Engenharia ElétricaUNIFEI, 2004-12-16)
It is known that electric power systems are submitted to frequent changes of
state, as for instance, in load variations, commutations of generators or
transmission lines, inclusion of new equipments, contingencies, etc. ...