2010•Power System TechnologyRequires access

Analysis on Causes of Blackout Occurred in Brazilian Power Grid on Nov. 11, 2009 and Lessons Drawn From It to China Southern Power Grid

Hong Seung Jun

Abstract

The occurrence and propagation of blackout in Brazilian power grid on Nov. 11, 2009 are retrospected. It is pointed out that at first stage accident was caused by extreme-weather, and then it extended to a serious multiple-failure and finally became blackout; major causes expending accident to blackout were defects of protective relayings, security and stability control, insufficient measures in the third defense line and voltage collapse at receiving system. There are a lot of similarities in operational characteristics between Brazilian power grid and China Southern power grid, so considering actual condition of China Southern power grid lessons from blackout occurred in Brazilian power network are summarized.

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Key concepts: Blackout, Power grid, Electric power system, Grid, China, Power (physics), Engineering, Reliability engineering