摘要
2018年3月21日,因断路器过载保护动作后的一系列连锁反应,巴西电网发生大面积停电事故,北部和东北部电力系统与主网解列,导致北部和东北部14个州大面积停电,南部、东南部、中西部9个州也受到一定影响。文中介绍了事故前巴西电网的运行状况及事故的起因、经过、恢复等情况,指出事故前缺乏必要的稳定性分析、安控存在缺陷、保护误动作及"第三道防线"配置不合理是造成事故的主要原因,并结合中国电网实际,提出了重视保护及安控装置的整定与运行维护等保障电网安全稳定运行、防止大停电事故发生的建议。
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 9states 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.
作者
易俊
卜广全
郭强
习工伟
张剑云
屠竞哲
YI Jun;BU Guangquan;GUO Qiang;XI Gongwei;ZHANG Jianyun;TU Jingzhe(China Electric Power Research Institute,Beijing 100192,China;National Electric Power Dispatching and Control Center,State Grid Corporation of China,Beijing 100052,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2019年第2期1-6,共6页
Automation of Electric Power Systems
基金
国家电网公司科技项目"基于多沙堆理论的互联电网停电事故预警技术及系统研发"
国家自然科学基金面上项目(51777195)
北京市科技新星与领军人物培养计划(Z161100004916110)~~
关键词
巴西电网
大停电
安全稳定
安控措施
Brazilian power grid
blackout
security and stability
safety control measures
作者简介
易俊(1980-),男,通信作者,博士,教授级高级工程师,主要研究方向:电力系统运行与控制。E-mail:yjun@epri.sgcc.com.cn;卜广全(1962-),男,教授级高级工程师,主要研究方向:电力系统运行与控制。E-mail:bugquan@epri.sgcc.com.cn;郭强(1972-),男,教授级高级工程师,主要研究方向:电力系统规划技术。E-mail:guoqiang@epri.sgcc.com.cn.
