基于状态熵权和双轨制TOPSIS的电能质量实时综合评估方法
为实现电能质量连续、实时综合评估,提出了一种全域电能质量评估体系,设计了综合评估方法.首先,使用熵权法构造各指标间数据信息量的对比通道,实现对电能质量指标影响权重的常权赋予,保证赋权的客观性.通过构造状态变元,对计算单元内各点权重进行动态调整,保证指标时序赋权的动态特性,增强时域下的权重分辨率.然后,提出了双轨制TOPSIS评估方法,分别开辟数据与等级的TOPSIS计算路径,避免数据与等级杂糅对两者内部相对关系的破坏,减小评估标准对于数据的依赖,保证各时段评估标准的一致性.最后,实时判断两者贴合度,完成数据向等级的并轨,得到以综合评估等级为判据的电能质量整体状态评价和以状态权重为参考的等级变化...
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| Published in | 电力系统保护与控制 Vol. 51; no. 23; pp. 102 - 114 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
煤矿电气设备与智能控制山西省重点实验室(太原理工大学),山西 太原 030024%南京林业大学信息科学技术学院,江苏 南京 210037
01.12.2023
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
| DOI | 10.19783/j.cnki.pspc.230236 |
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| Abstract | 为实现电能质量连续、实时综合评估,提出了一种全域电能质量评估体系,设计了综合评估方法.首先,使用熵权法构造各指标间数据信息量的对比通道,实现对电能质量指标影响权重的常权赋予,保证赋权的客观性.通过构造状态变元,对计算单元内各点权重进行动态调整,保证指标时序赋权的动态特性,增强时域下的权重分辨率.然后,提出了双轨制TOPSIS评估方法,分别开辟数据与等级的TOPSIS计算路径,避免数据与等级杂糅对两者内部相对关系的破坏,减小评估标准对于数据的依赖,保证各时段评估标准的一致性.最后,实时判断两者贴合度,完成数据向等级的并轨,得到以综合评估等级为判据的电能质量整体状态评价和以状态权重为参考的等级变化成因分析.通过算例分析验证了该评估方法能够实现实时评估,具备准确快速地反映电能质量随时间变化的能力,且评估流程具有普适性. |
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| AbstractList | 为实现电能质量连续、实时综合评估,提出了一种全域电能质量评估体系,设计了综合评估方法.首先,使用熵权法构造各指标间数据信息量的对比通道,实现对电能质量指标影响权重的常权赋予,保证赋权的客观性.通过构造状态变元,对计算单元内各点权重进行动态调整,保证指标时序赋权的动态特性,增强时域下的权重分辨率.然后,提出了双轨制TOPSIS评估方法,分别开辟数据与等级的TOPSIS计算路径,避免数据与等级杂糅对两者内部相对关系的破坏,减小评估标准对于数据的依赖,保证各时段评估标准的一致性.最后,实时判断两者贴合度,完成数据向等级的并轨,得到以综合评估等级为判据的电能质量整体状态评价和以状态权重为参考的等级变化成因分析.通过算例分析验证了该评估方法能够实现实时评估,具备准确快速地反映电能质量随时间变化的能力,且评估流程具有普适性. |
| Abstract_FL | This paper proposes a comprehensive evaluation method and a global power quality evaluation system to achieve continuous and real-time evaluation of power quality.The entropy weight method is used to construct a comparison channel for the data information between each power quality indicator,ensuring the objectivity of the weighting.State variables are also constructed to dynamically adjust the weights of each point in the calculation unit,which enhances the time sequence weighting's dynamic characteristics and improves the weight resolution in the time domain.A dual-track TOPSIS evaluation method is proposed to open up TOPSIS calculation paths for both data and grades,ensuring the consistency of evaluation standards for each period.The method also merges data into grades to obtain a comprehensive evaluation of the power quality overall state based on the evaluation grade and a cause analysis of grade changes based on the state weight.Through case analysis,this evaluation method is verified to be effective for real-time evaluation and has generality. |
| Author | 胡润泽 张灿 耿蒲龙 吕世轩 郑丽君 卫宏 |
| AuthorAffiliation | 煤矿电气设备与智能控制山西省重点实验室(太原理工大学),山西 太原 030024%南京林业大学信息科学技术学院,江苏 南京 210037 |
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| Author_FL | HU Runze Lü Shixuan ZHENG Lijun ZHANG Can GENG Pulong WEI Hong |
| Author_FL_xml | – sequence: 1 fullname: HU Runze – sequence: 2 fullname: Lü Shixuan – sequence: 3 fullname: ZHANG Can – sequence: 4 fullname: GENG Pulong – sequence: 5 fullname: WEI Hong – sequence: 6 fullname: ZHENG Lijun |
| Author_xml | – sequence: 1 fullname: 胡润泽 – sequence: 2 fullname: 吕世轩 – sequence: 3 fullname: 张灿 – sequence: 4 fullname: 耿蒲龙 – sequence: 5 fullname: 卫宏 – sequence: 6 fullname: 郑丽君 |
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| Keywords | 熵权法 dual-track TOPSIS 实时评估 状态变权 real time evaluation global power quality evaluation 双轨制TOPSIS entropy weight 全域电能质量评估 variable weight |
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| Title | 基于状态熵权和双轨制TOPSIS的电能质量实时综合评估方法 |
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