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Event-based Two-stage Non-intrusive Load Monitoring Method Involving Multi-dimensional features

CSEE Journal of Power and Energy Systems 2023年第3期9卷 1119-1128页

作者： Yongjun Zhou Shu Zhang Bolu Ran Wei Yang Ying Wang Xianyong Xiao College of Electrical Engineering Sichuan UniversityChengdu 610065China State Grid Tibet Power Company LtdLhasa 850000China State Grid Hangzhou Power Supply Company Hangzhou 310000China

This paper proposes an event-based two-stage Nonintrusive load monitoring(NILM)method involving multidimensional features,which is an essential technology for energy savings and ***,capture appliance events using a goodness of fit test and then pair the on-off *** the multi-dimensional features are extracted to establish a feature *** the first stage identification,several groups of events for the appliance have been divided,according to three features,including phase,steady active power and power *** the second stage identification,a“one against the rest”support vector machine(SVM)model for each group is established to precisely identify the *** proposed method is verified by using a public available dataset;the results show that the proposed method contains high generalization ability,less computation,and less training samples.

关键词： feature library multi-dimensional features NILM residential appliances SVM two-stage identification

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A System for Generating Operational Sketches Based on the Multi- level Graphic library

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Journal of Systems Science and Systems Engineering 2001年第1期13卷 108-116页

作者： BAO Zhen qiang 1,2 , WANG Ning sheng2 1.Institute of Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China 2.Nanjing University of Aeronautics and Astronautics, Jiangsu 210016, China Institute of Technology Yangzhou University Yangzhou Jiangsu 225009 China Nanjing University of Aeronautics and Astronautics Jiangsu 210016 China Nanjing University of Aeronautics and Astronautics Jiangsu 210016 China

：This paper points out the limitations of both parametric and geometric model methodscommonly applied to generate operational sketches in CAPP. The ideas of multi-level graphic library areintroduced and a new generative method based on this library which combines parametric method withgeometric model method is presented. The principles and characteristics of the construction of the library aredescribed in detail and the feature data structure corresponding with the library is also presented.

关键词： generation of operational sketches feature library graphic library

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