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| 基于改进D-S证据理论的小电流接地系统故障选线 | |
| 引用本文： | 徐卫星,赵建军,侯彦东. 基于改进D-S证据理论的小电流接地系统故障选线[J]. 电测与仪表, 2009, 46(12) |
| 作者姓名： | 徐卫星 赵建军 侯彦东 |
| 作者单位： | 河南大学先进控制与智能信息处理研究所,河南开封,475001 |
| 摘 要： | 为了克服在小电流接地系统故障选线过程中由于征兆本身的可信度与征兆之间相关性而导致现有故障选线方法准确性较差的问题,文章基于改进的D-S证据理论建立了一种故障选线新方法.首先基于传统的D/S证据理论,建立了故障选线模型,然后通过借鉴信息熵和信息容量的概念,实现了征兆本身的可信度及征兆之间相关性的有效度量,最后,给出了基于改进组合规则的小电流接地系统的故障选线新方法,并通过实例验证了该方法的有效性. |
| 关 键 词： | D/S证据理论 可信度 相关性 信息熵 |
Fault Line Selection in Small Current Grounded System Based on Improved D-S Evidence Theory |
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| XU Wei-xing,ZHAO Jian-jun,HOU Yan-dong. Fault Line Selection in Small Current Grounded System Based on Improved D-S Evidence Theory[J]. Electrical Measurement & Instrumentation, 2009, 46(12) | |
| Authors: | XU Wei-xing ZHAO Jian-jun HOU Yan-dong |
| Affiliation: | XU Wei-xing,ZHAO Jian-jun,HOU Yan-dong (Institute of Advanced Control , Intelligent Information Processing,Henan University,Kaifeng 475001,Henan,China) |
| Abstract: | To overcome the poor veracity of grounded fault line selection in small current grounded system,which induced by the reliability of symptom and the correlation symptom terms,a novel fault line selection method is proposed based on improved D-S evidence theory in the paper. Firstly,the fault line selection model is established based on traditional D-S evidence theory. Secondly,the effective measuring for the reliability of symptom and the correlation symptom terms is solved by information entropy and informa... |
| Keywords: | D-S evidence theory reliability correlation information entropy |
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