Investigation of Key Causes for Power Grid Safety Events Based on Grey Correlation Analysis

doi:10.11930/j.issn.1004-9649.202006215

Abstract

Abstract: Investigation and study of the influencing factors for power grid safety events and their controlling measures has become a hot issue to prevent power grid safety events. In order to reveal the mechanism of power grid safety events, an analysis is made of the key cause factors for power grid safety events in China by means of qualitative analysis and grey correlation analysis based on accident causation theory. It is found that the influencing factors for power safety events mainly include subject factors(cognitive factor, behavior factor and physical factor), process factors(organization atmosphere factor and organization process factor), object factors (low equipment reliability factor and lax equipment management factor) and situational factors(operational factor and non-operational environmental factor). Grey correlation analysis shows that the cause factors for power grid events can be divided into red risk factor (r≥0.8), orange warning factor (0.7≤r＜0.8) and yellow pre-warning factor (r＜0.7), of which the factors of organization atmosphere factor, cognitive factor and behavior factor are the key cause factors for power grid events. In the end, some policy proposals are put forward for power grid safety event management to strengthen power grid safety in China.

Key words: power grid safety event, grounded theory, accident causation theory, grey correlation, key causes

JIANG Shiyan, WANG Yanqing, XU Yuefeng, FENG Jie, SUN Qingqing, CHEN Hong, ZHANG Zhicheng, YU Lei, MOU Sinan. Investigation of Key Causes for Power Grid Safety Events Based on Grey Correlation Analysis[J]. Electric Power, 2021, 54(6): 168-174,198.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202006215

https://www.electricpower.com.cn/EN/Y2021/V54/I6/168

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