ISSN 1000-1026
CN 32-1180/TP
  • ISSN 1000-1026
  • CN 32-1180/TP

Citation: YI Jun,BU Guangquan,GUO Qiang,XI Gongwei,ZHANG Jianyun,TU Jingzhe.Analysis on Blackout in Brazilian Power Grid on March 21, 2018 and Its Enlightenment to Power Grid in China[J].Automation of Electric Power Systems,2019,43(2):1-6. DOI: 10.7500/AEPS20180812003 copy

Analysis on Blackout in Brazilian Power Grid on March 21, 2018 and Its Enlightenment to Power Grid in China

  • Received Date: August 12, 2018
    Accepted Date: October 19, 2018
    Available Online: November 28, 2018

  • Abstract:

        On March 21, 2018, a large-area blackout occurred in Brazilian power grid because of a series of chain reactions caused by a circuit breaker overload protection. As sequence, the northern and northeastern power grids were disconnected from the main power grid in Brazil, 14 states in north and northeast area came to blackout, and 9 states in south, southeast and midwest area were also affected. The operation status of Brazilian power grid before the accident and the cause, process and recovery of the blackout are introduced. It is pointed out that the main causes of the accident are the lack of necessary stability analysis before the accident, the defects in security control, the misoperation of protection and the unreasonable configuration of the third line of defense. Combined with the actual situation of power grid in China, some recommendations are put forward to ensure the safe and stable operation of the power grid and to prevent blackouts. For example, attention should be paid to the setting and operation of protection and control devices.

  • Keywords:

    Brazilian power grid; blackout; security and stability; safety control measures

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