Title :
Brazilian defense plan against extreme contingencies
Author :
Filho, V.X. ; Pilotto, L.A.S. ; Martins, N. ; Carvalho, A.R.C. ; Bianco, A.
Author_Institution :
Centro de Pesquisas de Energia Eletrica, CEPEL, Rio de Janeiro, Brazil
Abstract :
This paper presents some of the short-term measures developed from the studies following the blackout in the Brazilian South/Southeast/Center-West power system in March 11/sup th/ 1999. The concept of security zones and network security matrix is introduced. A new PLC-based SPS was designed to create controllability zones. This new scheme was named security control and is triggered by network topological changes. The security control is fast acting, with clearing times around 200 ms. A typical security controller logic is presented, showing its benefits for the Brazilian interconnected power system.
Keywords :
controllability; power system interconnection; power system protection; power system security; power system stability; programmable controllers; Brazilian South/Southeast/Center-West power system; Brazilian interconnected power system; angle stability control; blackout; clearing times; controllability zones; network security matrix; programmable logic controller; security controller logic; security zones; short-term measures; voltage collapse; Control systems; Power generation; Power system interconnection; Power system measurements; Power system protection; Power system reliability; Power system security; Power system stability; Senior members; Voltage control;
Conference_Titel :
Power Engineering Society Summer Meeting, 2001
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-7173-9
DOI :
10.1109/PESS.2001.970160
