Outlier Data Treatment Methods Toward Smart Grid Applications

In a smart grid environment, advanced metering infrastructure (AMI) and intelligent sensors have been deployed extensively. As a result, large-scale and fine-grained smart grid data are more convenient to be collected, in which outliers exist pervasively, caused by system failures, environmental eff...

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Main Authors: Li Sun, Kaile Zhou, Xiaoling Zhang, Shanlin Yang
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8404086/
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author Li Sun
Kaile Zhou
Xiaoling Zhang
Shanlin Yang
author_facet Li Sun
Kaile Zhou
Xiaoling Zhang
Shanlin Yang
author_sort Li Sun
collection DOAJ
description In a smart grid environment, advanced metering infrastructure (AMI) and intelligent sensors have been deployed extensively. As a result, large-scale and fine-grained smart grid data are more convenient to be collected, in which outliers exist pervasively, caused by system failures, environmental effects, and human interventions. Outlier deletion is always implemented in data preprocessing for improving data quality. However, due to the fact that real records that reflect rare and unusual patterns are also recognized as outliers, outlier mining is necessary to be carried out with the aim of discovering knowledge on abnormal patterns in power generation, transmission, distribution, transformation, and consumption. To the best of our knowledge, a comprehensive and systematic review of outlier data treatment methods is still lacked in the smart grid environment. We, in this paper, aim at presenting the review of outlier data treatment methods toward smart grid applications and categorize them into outlier rejection and outlier mining groups. Since we do this survey from the perspective of data-driven analytics and data mining methods, information security technologies are barely discussed in this paper. Based on a general overview of outlier data treatment methods, we make the contribution of providing the application scenarios of outlier rejection and outlier mining in the smart grid environment. With the construction of smart grid throughout the world, dealing with outlier data has become more crucial for the security and reliability of power system operation. Therefore, we also discuss some future challenges of outlier data treatment toward smart energy management.
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spelling doaj.art-09a8abd87d254bb3ae149fce362dab032022-12-21T18:15:31ZengIEEEIEEE Access2169-35362018-01-016398493985910.1109/ACCESS.2018.28527598404086Outlier Data Treatment Methods Toward Smart Grid ApplicationsLi Sun0Kaile Zhou1https://orcid.org/0000-0001-5355-1322Xiaoling Zhang2Shanlin Yang3School of Management, Hefei University of Technology, Hefei, ChinaSchool of Management, Hefei University of Technology, Hefei, ChinaDepartment of Public Policy, City University of Hong Kong, Hong KongSchool of Management, Hefei University of Technology, Hefei, ChinaIn a smart grid environment, advanced metering infrastructure (AMI) and intelligent sensors have been deployed extensively. As a result, large-scale and fine-grained smart grid data are more convenient to be collected, in which outliers exist pervasively, caused by system failures, environmental effects, and human interventions. Outlier deletion is always implemented in data preprocessing for improving data quality. However, due to the fact that real records that reflect rare and unusual patterns are also recognized as outliers, outlier mining is necessary to be carried out with the aim of discovering knowledge on abnormal patterns in power generation, transmission, distribution, transformation, and consumption. To the best of our knowledge, a comprehensive and systematic review of outlier data treatment methods is still lacked in the smart grid environment. We, in this paper, aim at presenting the review of outlier data treatment methods toward smart grid applications and categorize them into outlier rejection and outlier mining groups. Since we do this survey from the perspective of data-driven analytics and data mining methods, information security technologies are barely discussed in this paper. Based on a general overview of outlier data treatment methods, we make the contribution of providing the application scenarios of outlier rejection and outlier mining in the smart grid environment. With the construction of smart grid throughout the world, dealing with outlier data has become more crucial for the security and reliability of power system operation. Therefore, we also discuss some future challenges of outlier data treatment toward smart energy management.https://ieeexplore.ieee.org/document/8404086/Outlier data treatmentoutlier rejectionoutlier miningsmart griddata preprocessing
spellingShingle Li Sun
Kaile Zhou
Xiaoling Zhang
Shanlin Yang
Outlier Data Treatment Methods Toward Smart Grid Applications
IEEE Access
Outlier data treatment
outlier rejection
outlier mining
smart grid
data preprocessing
title Outlier Data Treatment Methods Toward Smart Grid Applications
title_full Outlier Data Treatment Methods Toward Smart Grid Applications
title_fullStr Outlier Data Treatment Methods Toward Smart Grid Applications
title_full_unstemmed Outlier Data Treatment Methods Toward Smart Grid Applications
title_short Outlier Data Treatment Methods Toward Smart Grid Applications
title_sort outlier data treatment methods toward smart grid applications
topic Outlier data treatment
outlier rejection
outlier mining
smart grid
data preprocessing
url https://ieeexplore.ieee.org/document/8404086/
work_keys_str_mv AT lisun outlierdatatreatmentmethodstowardsmartgridapplications
AT kailezhou outlierdatatreatmentmethodstowardsmartgridapplications
AT xiaolingzhang outlierdatatreatmentmethodstowardsmartgridapplications
AT shanlinyang outlierdatatreatmentmethodstowardsmartgridapplications