| 灰色理论在电能质量综合评估中应用 |
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| 引用本文： | 雷刚,顾伟,袁晓冬.灰色理论在电能质量综合评估中应用[J].电力自动化设备,2009,29(11). |
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| 作者姓名： | 雷刚 顾伟 袁晓冬 |
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| 作者单位： | 1. 东南大学,电气工程学院,江苏,南京,210096
2. 江苏省电力试验研究院,江苏,南京,210036 |
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| 摘 要： | 重点探讨了电能质量综合评估中指标权重和评估方法2个方面.为了克服单一赋权方法的缺陷,获得科学的权重系数,首先计算样本数据的熵值以取得客观权重,将AHP法进行改善以获取主观权重,然后通过线性加权得到电能质量分项指标的组合权重.以电能质量国家标准为依据建立标准矩阵,对样本数据进行灰色关联分析,并结合综合权重求取各样本的关联度;通过比较数据样本和标准样本关联度的大小以确定样本的等级.计算结果表明组合赋权方法得到的各指标的权重更加客观、全面,采用灰色关联分析的电能质量综合评估结果更加科学、准确.
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| 关 键 词： | 电能质量 综合评估 改进AHP法 组合赋权法 灰色关联分析 |
Application of gray theory in power quality comprehensive evaluation |
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| LEI Gang,GU Wei,YUAN Xiaodong.Application of gray theory in power quality comprehensive evaluation[J].Electric Power Automation Equipment,2009,29(11). |
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| Authors: | LEI Gang GU Wei YUAN Xiaodong |
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| Affiliation: | LEI Gang1,GU Wei1,YUAN Xiaodong2 (1. Southeast University,Nanjing 210096,China,2. Jiangsu Electric Power Research Institute,Nanjing 210036,China) |
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| Abstract: | The weighting and methodology of power quality comprehensive evaluation is discussed. For scientific weights,the objective weights are achieved by computing the entropies of sampled data and the subjective weights by improved AHP (Analytic Hierarchy Process). The integrated weights of PQIs(Power Quality Indexes) are calculated by linear addition of objective and subjective weights. The standard matrix is built based on the state power quality standards and the GRA(Gray Relation Analysis) of samples is carri... |
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| Keywords: | power quality comprehensive evaluation improved AHP integrated weighting method gray relation analysis |
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