摘要
智能变电站承担着向电力负荷供电的重要职责。重点利用层次分析法和模糊综合评价法对智能变电站二次设备进行状态评估。首先,根据国网最新监测信息标准建立完整的状态评价指标集;其次,结合层次分析法和模糊理论,从硬件层面出发,建立评估算法模型,评估其能否完成既定功能。其中,提出用隶属度修正和变权理论相结合的方法进行改进,降低了固定隶属度和常权重带来的偏差;最后,通过实际算例验证,方法提高了评估的可靠度。
Intelligent substations undertake the important responsibility of supplying electricity to power loads. State evaluation of secondary equipment of intelligent substations was made in the analytic hierarchy process and fuzzy comprehensive evaluation method. Firstly,a full evaluation indicator set was established according to the latest monitoring information standard of the state grid. Then,an evaluation algorithm model was set up from the hardware level through combination of analytic hierarchy process and fuzzy theory,to evaluate if the specified function could be accomplished. An improvement of combining membership degree correction with variable weight theory was proposed to reduce the deviation attributable to fixed membership degree and constant weight. Finally,application in actual examples verified that the proposed method could improve evaluation reliability.
作者
唐楚雪
陈德明
Tang Chuxue;Chen Deming(College of Electrical Engineering,Southwest Jiaotong University,Chengdu Sichuan 611756,China)
出处
《电气自动化》
2018年第6期71-73,107,共4页
Electrical Automation
基金
中国铁路总公司科技研究开发重点课题:牵引供电系统装备技术研究--智能牵引供电系统关键技术研究(2015J005-E)
中国铁路总公司科技研究开发重大课题:牵引供电运行安全技术研究--智能牵引供电设备状态监测与故障预警技术研究(2016J010-A)
关键词
智能变电站
二次设备
层次分析法
模糊理论
变权理论
intelligent substation
secondary equipment
analytic hierarchy process
fuzzy theory
variable weight theory
作者简介
唐楚雪（1992-）,女,四川成都人,硕士生,主要研究方向为牵引供电电气化与自动化、电力系统继电保护.;陈德明（1971-）,男,四川成都人,副教授,硕士,主要研究方向为变电站综合自动化、电力系统继电保护.
