专利详细信息

用于铝电解槽况故障诊断的优化权重相对主元分析方法

文献类型：专利

专利类型：发明专利

是否失效：否

是否授权：否

申请号：CN201410165336.3

申请日：20140422

发明人：易军黄迪李太福周伟张元涛姚立忠田应甫

申请人：重庆科技学院

申请人地址：401331 重庆市沙坪坝区大学城东路20号

公开日：20140730

公开号：CN103952724A

代理人：余锦曦

代理机构：重庆为信知识产权代理事务所(普通合伙)

语　　种：中文

摘　　要：一种用于铝电解槽况故障诊断的优化权重相对主元分析方法，其特征在于：一，随机采集n组铝电解槽况数据组成原始测量样本集；二，得到标准化后样本矩阵X<Sup>*</Sup>；三，随机产生相对转换矩阵Λ；四，得到相对化样本矩阵X<Sup>R</Sup>；五，对X<Sup>R</Sup>进行主元分析，计算SPE检验的误报率；六，利用遗传算法优化相对转换矩阵Λ，得到最优的相对转换矩阵Λ<Sup>*</Sup>；七，利用最优的相对转换矩阵Λ<Sup>*</Sup>，得到最优的相对化样本矩阵X<Sup>RZ</Sup>；八，实现铝电解槽况故障诊断。本发明利用遗传算法优化主元权重，将“均匀”分布的量突显出来，以便更好地提取出具有代表性的主元，从而提高铝电解槽况故障诊断的精确度。

主权项：1.一种用于铝电解槽况故障诊断的优化权重相对主元分析方法，其特征在于：包括下列步骤：步骤一，随机采集n组铝电解槽况数据组成原始测量样本集X＝[x₁,x₂,…,x_n]∈R^m×n，每个样本含有m个独立的铝电解槽况参数采样值；步骤二，对原始测量样本集X进行标准化处理，得到标准化后样本矩阵X^*；步骤三，在[0,50)范围内随机产生相对转换矩阵Λ，所述相对转换矩阵Λ为对角矩阵： $<math> <mrow> <mi>Λ</mi> <mo>=</mo> <mfenced open='(' close=')'> <mtable> <mtr> <mtd> <msub> <mi>λ</mi> <mn>1</mn> </msub> </mtd> <mtd> <mn>0</mn> </mtd> <mtd> <mo>.</mo> <mo>.</mo> <mo>.</mo> </mtd> <mtd> <mn>0</mn> </mtd> </mtr> <mtr> <mtd> <mn>0</mn> </mtd> <mtd> <msub> <mi>λ</mi> <mn>2</mn> </msub> </mtd> <mtd> <mo>.</mo> <mo>.</mo> <mo>.</mo> </mtd> <mtd> <mn>0</mn> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </p><p class='subject'><strong>关键词：</strong><b class='type_ico_id'></b>铝电解槽转换矩阵 <b class='type_ico_id'></b>故障诊断样本矩阵 <b class='type_ico_id'></b>遗传算法优化 <b class='type_ico_id'></b>相对化测量样本数据组成优化权重 <b class='type_ico_id'></b>误报率分析采集检验 </p><p class='class'><strong>IPC专利分类号：</strong>C25C3/20(20060101);G06F17/16(20060101)</p>
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