| 基于粗糙集理论和Petri网的断路器故障诊断 |
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| 引用本文： | 赵宁,赵杰. 基于粗糙集理论和Petri网的断路器故障诊断[J]. 中国电力, 2011, 44(8): 9-13 |
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| 作者姓名： | 赵宁 赵杰 |
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| 作者单位： | 1. 河北超高压分公司,河北石家庄,050070
2. 天津大学电力系统仿真控制教育部重点实验室,天津,300072 |
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| 摘 要： | 将粗糙集理论和Petri网相结合,一同用于断路器故障诊断。为了简化断路器故障诊断决策表,采用粗糙集理论中区分矩阵算法和规则提取的矩阵算法对决策表实现条件属性约简与规则简化,找到决策表中隐藏的潜在规则,减少工作量,降低不确定信息的影响,提高故障诊断准确率。用粗糙集理论得到的规则建立Petri网络模型,Petri网可以将知识表示和诊断能力融为一体,利用Petri网实现并行推理,通过简单的矩阵运算对断路器故障诊断进行快速计算。实例分析表明所提出方法准确有效。
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| 关 键 词： | 断路器 故障诊断 粗糙集理论 Petri网 |
Circuit breaker fault diagnoses based on rough set theory and Petri nets |
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| ZHAO Ning,ZHAO Jie. Circuit breaker fault diagnoses based on rough set theory and Petri nets[J]. Electric Power, 2011, 44(8): 9-13 |
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| Authors: | ZHAO Ning ZHAO Jie |
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| Affiliation: | ZHAO Ning1,ZHAO Jie2(1.Hebei Extra High Voltage Branch,Shijiazhuang 050070,China,2.Key Laboratory of Power System Simulation and Control of Ministry of Education,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The rough set theory(RST) and Petri nets were integrated for fault diagnoses of circuit breakers.In order to gain a reduced decision table of circuit breaker fault diagnoses,the RST based discernibility matrix algorithm and the rule extraction matrix algorithm were combined to simplify the condition attributes and the rules.The combined method can be used to find the potential rules hiding in the decision table,reduce the workload and the impact of uncertain information,and improve the accuracy of fault dia... |
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| Keywords: | circuit breaker fault diagnosis rough set theory Petri nets |
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