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基于改进CRITIC-TOPSIS的电能质量评估方法

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随着风能、太阳能以及水电的并网和用户侧设备对电能的敏感,电能质量的优劣需要更加合理的评估.基于改进CRITIC-TOPSIS建立电能质量综合评估决策模型.首先,通过CRITIC法对数据的运算完成对指标的赋权,得到的权重值未受到主观意识的影响从而更加客观准确.然后用加权广义马氏距离替代欧式距离改进的TOPSIS法可以解决协方差矩阵不可逆、指标之间重要性差异和相关性等问题,得到的评估结果更加合理准确.最后,将综合评估模型代入5 个监测点中,得到的结果表明,该模型能够得到相对合理的排序,为评估电能质量的优劣提供了新的思路.
Power quality assessment method based on improved critic-TopSIS
With the grid connection of wind,solar and hydropower and the sensitivity of user-side equipment to power,the quality of power needs to be more reasonable evaluation.In this paper,a decision-making model for power quality evaluation is established based on improved critic-TopSIS.First of all,weight is given to indicators through the operation of data by CRITIC method,and the weight value obtained is not affected by subjective con-sciousness so that it is more objective and accurate.Then,weighted generalized Mahalanobis distance is used to re-place Euclidean distance.The improved TOPSIS method can solve the problems of irreversibility of covariance ma-trix,importance difference and correlation among indicators,and the evaluation results are more reasonable and ac-curate.Finally,the comprehensive evaluation model is substituted into five monitoring points,and the results show that the model can get a relatively reasonable ranking,which provides a new idea for evaluating power quality.

comprehensive evaluationthe CRITICTOPSISweighted generalized Mahalanobis distancepower quality

谢宗效、杨留方、曹伟嘉、毛玉明

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云南民族大学 电气信息工程学院,云南 昆明 650504

综合评价 CRITIC TOPSIS 加权广义马氏距离 电能质量

2024

云南民族大学学报(自然科学版)
云南民族大学

云南民族大学学报(自然科学版)

CSTPCD
影响因子:0.381
ISSN:1672-8513
年,卷(期):2024.33(1)
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