摘要
由于电网事故发生的不确定性和事故造成的严重后果,需要建立风险模型及评估体系以实现电力设备风险评估。为了给安全风险管控提供有用的设备运行信息,提出基于健康度和重要度的电力设备运行风险评估方法。首先,在电力设备电气量\非电气量参数、运行状态和运行限值的基础上构建设备健康度模型,提出设备参数健康指标和综合健康指标。然后,由设备运行涉及到的各个重要因子组成的重要度模型来表征设备异常运行后果的严重度,综合电力设备运行的健康度和重要度,完善风险评估体系。最后,以某变电站系统为例进行仿真试验,利用设备数据来验证所提出方法的适用性,试验结果证明该方法能够有效评估设备潜在的风险,提高供电的可靠性和安全性。
Because of the uncertainty of power grid accidents and the serious consequences of accidents,it is necessary to establish a risk model and an evaluation system to realize the risk assessment of power equipment.In order to provide useful equipment operation information for safety risk management and control,a risk assessment method of power equipment based on health degree and importance is proposed.Firstly,a health model of equipment is constructed based on the operating status and operating limits of electrical and non-electrical parameters of power equipment,and health index of equipment parameters as well as comprehensive health index are proposed.Then,the importance model composed of the important factors involved in the operation of the equipment is used to characterize the severity of the consequences of abnormal operation of the equipment.Risk assessment system integrates and improves the health and importance of power equipment operation.Taking the data of a certain substation equipment as an example to carry out simulation experiments to verify the applicability of the proposed method.The experimental results show that the method can effectively evaluate the potential risk of equipment and improve the reliability and safety of power supply.
作者
马青山
孙玉玮
邓伟超
俞鑫春
朱建宝
王中一
MA Qingshan;SUN Yuwei;DENG Weichao;YU Xinchun;ZHU Jianbao;WANG Zhongyi(State Grid Nantong Power Supply Company,Nantong 226006;School of Energy and Electrical Engineering,Hohai University,Nanjing 211100;Nanjing Dongbo Intelligent Energy Research Institute Co.,Ltd.,Nanjing 210000)
出处
《电气工程学报》
2020年第4期144-152,共9页
Journal of Electrical Engineering
关键词
健康度
重要度
电力设备
风险评估
Health
importance
power equipment
risk assessment
