Reliability and diagnosis
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LIAO Zhiwei，ZHUANG Jing，WANG Bowen，ZHENG Guangyu，XIE Xunkai
Abstract: Aiming at the problems that high voltage direct current（HVDC）transmission line protection andfault location are vulnerable to lightning interference，and the traditional lightning interference identificationmethods of transmission line based on time-domain and frequency-domain features exist the problems of...
更多Number of views：783 Amount of downloads：955
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HUANG Feng，CUI Zhimei，HUANG Zhidu，JIANG Shengchao，FENG Bo
Abstract: In order to evaluate the safety status of transmission lines scientifically and objectively，a safetyanalysis model of transmission lines based on support vector machine-back propagation（SVM-BP）hybrid networkwas proposed. Firstly，the weather data，transmission line standard documents and defect data were pro...
更多Number of views：981 Amount of downloads：833
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WU Ning，CAI Jie，LIANG Gonghao
Abstract: As an important part of smart grid monitoring system，the security of power wide area measurementsystem is very important. Therefore，in order to ensure the integrity and confidentiality of communication data inpower wide area measurement system and the communication security between terminal devices in the ...
更多Number of views：1235 Amount of downloads：820
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PENGTao
Abstract: The local leakage signal of high-voltage insulation equipment is weak and its characteristics are notobvious，which can only explain whether there is discharge. There is a phenomenon of missing judgment andmisjudgment in the actual positioning process，which is difficult to accurately locate the high-voltage...
更多Number of views：1125 Amount of downloads：741
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TONG Xin，SONG Guobing，ZHANG Zhihua，WANG Junfeng，LEI Zhirong
Abstract: Due to the change of the ground parameters of the distribution network after the single-phasegrounding fault，the traditional active arc suppression method based on the ground parameters in the normaloperation state has a deviation between the compensation current reference value and the actual value. Incons...
更多Number of views：939 Amount of downloads：902
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ZHANG Pengcheng，TUSONGJIANG Kari，WANG Hailong，YILIHAMUYaermaimaiti，LU Haotan，RUAN Jiayang
Abstract: In order to improve the accuracy of automatic reading of tilted meter images，a novel algorithmbased on ORB and improved region growing method was presented. Firstly，the ORB algorithm was applied to detect the feature points of the target image and the template image，and the transformation matrix used to ac...
更多Number of views：950 Amount of downloads：817
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SUN Zhenqin，QU Jianhua，ZHANG Zhenzhen，QUAN Xiao，LI Hongbin，TAN Peng
Abstract: In order to improve the measurement accuracy of the position and speed closed-loop of the brushlessDC motor，which is currently used in the attitude control actuator，a new cumulative pulse M/T method wasproposed，based on incremental off-axis magnetic encoder（AS5304A）and TMS570 chip internal integratedenhance...
更多Number of views：1056 Amount of downloads：972
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LI Zhijuan，WU Dan，LEI Ting，WANG Ning，DUAN Yan，MA Hongen
Abstract: Aiming at the problems of frequent failures and untimely maintenance of DC charging pile，a faultearly warning method of DC charging pile based on soft classification model was proposed. Based on the currentsequence and voltage sequence of the charging pile in the charging process，the differential sequence o...
更多Number of views：963 Amount of downloads：837
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PENG Yanlai，FAN Yong，YANG Xiaofeng，YANG Hongyu，WANG Zhixin
Abstract: Aiming at the problems that the amount of data in wind farm SCADA data is huge and it is difficultto classify the fast fault of wind turbine generator，a dynamic threshold AdaBoost algorithm（DTAdaBoost）wasproposed. Based on AdaBoost algorithm，the dynamic threshold was introduced to screen the sample set dat...
更多Number of views：1153 Amount of downloads：918
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SONG Hui，YUAN Longxiang
Abstract: Aiming at the problem of single hot spot temperature under average state and long response timeunder different load states，in order to improve the response speed，a 10 kV transformer load state detection method based on K-means algorithm was designed. The 10 kV transformer load model was established，the ove...
更多Number of views：1208 Amount of downloads：1086
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PENG Daogang，GAO Yimin，QI Erjiang，ZHOU Yang，WANG Yongkun
Abstract: Oil spills from thermal power plants can pollute the drainage outlet，if not dealt with in time，it willalso pollute the river environment. Drainage outlet monitoring is from the angle of depression，therefore it is hard to identify accurately with the rectangular detection frame. Based on the image from the ...
更多Number of views：1100 Amount of downloads：1238
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YANG Yanfang，LIANG Zhonghao，ZHANG Meiling，LIU Jiayi
Abstract: Aiming at the problem of low accuracy and comprehensiveness of current identification methods，amethod of reverse power anomaly identification in digital electric energy meter information sampling was proposed.Through the data acquisition system，the digital electric energy meter information sampling work was...
更多Number of views：1348 Amount of downloads：1246
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ZHANG He，CAO Tianbi，LI Xianyun
Abstract: In view of the complex transient characteristics of short-circuit faults in DC power network and thedifficulty of fault identification，the short-circuit faults in DC power network can be identified by detecting the change of capacitance voltage through the analysis of the VSC topology and switch characteri...
更多Number of views：1544 Amount of downloads：1132
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WANG Jie，JIN Weigang
Abstract: In view of the difficulty in detecting the uniform and non-uniform contamination of high voltage（HV）glass insulators and the inaccuracy of risk assessment，a risk assessment method for HV glass insulatorsbased on a new leakage current indicator Rhi was proposed. The new leakage current index Rhiwas derived ...
更多Number of views：1735 Amount of downloads：1219
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GU Zhen，ZHUANG Gewei，HE Qing，ZHOU Lei，AN Bailong，DUAN Yan
Abstract: Accurate identification method of abnormal electricity users can provide reference for power supplyenterprises to lock in electricity theft or other violations of power users. Most abnormal user identification modelsbased on machine learning adopt unsupervised algorithms，but the accuracy of the models is l...
更多Number of views：1785 Amount of downloads：1150
