Dynamic Security Constrained Optimal Power Flow/VAr planning

Traditionally Security Constrained Optimal Power Flow and VAr planning meth ods consider static security observing voltage profile and flow constraints under normal and post contingency conditions. Ideally, these formulations should be extended to consider dynamic security. This paper reports on a B. C. Hydro/CEPEL joint effort establishing a Dynamic Security Constrained OPF /VAr planning tool which considers simultaneously static constraints as wel l as voltage stability constraints. This paper covers the details of formul ation and implementation of the tool together with the test results on a la rge scale North American utility system and a reduced Brazilian system.