提出基于粗糙集的关联影响的基本概念及其属性约简算法,利用属性之间的相互影响,建立属性的关联影响度矩阵,以属性的关联影响度作为启发条件,有效地删除冗余属性,获得能反映出属性之间相互影响的约简集。在分析和研究电网故障诊断系统属性选择的基础上,通过电工理论计算电网连锁故障诊断预警系统的属性值,求出负荷转移情况下属性之间相互产生的关联影响,建立基于关联影响属性约简算法的电网故障诊断和预警模型。
Based on rough set, the basic concepts of related affects of rough set theory and its attributes reduction algorithm are proposed. By configuring the related affect matrix of the attributes and arousing with the attributes affects, we can delete the redundant attributes and get the reduction set which can reflect the mutual affect among the attributes. By using decision tables, the proposed algorithm can form the fault decision rules and serve the power grid fault diagnosis.