Reliability and diagnosis
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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：933 Amount of downloads：806
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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：839 Amount of downloads：944
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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：1054 Amount of downloads：988
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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：1213 Amount of downloads：907
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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：1391 Amount of downloads：919
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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：1412 Amount of downloads：911
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ZHANG Jinbo，YAN Lei，SHI Jian，HUANG Xiaoyu，YANG Dishan，YAN Tongyu
Abstract: A large number of voltage fluctuations will occur in the grounding process of optical storage DCmicrogrid，which has a bad impact on the stability of microgrid power signal. Due to the poor voltage disturbancesignal capture ability of the present optical storage DC microgrid grounding anti-interference tech...
更多Number of views：1762 Amount of downloads：951
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SHI Shaoqing，ZHANG Leping，ZHANG Bensong，WU Haowen，LIAN Xinkai，DU Shushuai
Abstract: In order to apply the smart meters with load identification technology into real application，a nonintrusive load identification method using Mean-shift clustering algorithm with siamese network framework wasproposed. In this method，the load event was carried out for extracting the features，including active...
更多Number of views：1859 Amount of downloads：1140
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DING Zancheng，WANG Dajun，LI Wanxiang
Abstract: In view of the problem that the dangerous points in transmission lines affect the stability of powersystem，the technology of identifying and controlling the transmission line dangerous points based on multidimensional perception was studied，which can control the transmission line risk in time，reduce noise ...
更多Number of views：1997 Amount of downloads：1165
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CAOWei，GUI Shicheng，HUANG Ruanming，HE Bilun，QIN Huancheng
Abstract: With the expansion of the interconnection scale of the power system，the impedance ratio of thepower grid increased gradually，thereby the breaking capacity of the circuit breaker was affected by the increasingattenuation time constant of the DC component of the short-circuit current .At present，the periodic...
更多Number of views：1991 Amount of downloads：1223
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ZHANG Feifei，ZHANG Jun，WU Long，WU Xiaohui，XUE Zhanbo
Abstract: In order to solve the problems of false alarm rate and missing alarm rate in the traditional faultdetection method of substation primary equipment，a fault detection method of substation primary equipment based on deep convolution neural network was proposed. The substation primary equipment image and scene...
更多Number of views：1903 Amount of downloads：1043
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HU Xiaoyu，ZHOU Yuanxiang，CHEN Jianning，ZHAO Yunzhou，LIU Jun
Abstract: As a new type of insulating oil in the power industry，natural gas insulating oil is excepted to solvethe bottleneck problem of high-quality transformer oil's insufficient supply in the future. However，its electricalparameters including partial discharge withstand strength and sweep frequency spectrum c...
更多Number of views：1867 Amount of downloads：1061
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HE Hengjing，ZHOU Shangli，ZHANG Bensong，XIE Wenwang，LIAN Xinkai，XU Haotian
Abstract: In order to apply the non-instrusive load montiring technology into the new generation of smartmeter，a kind of method based on the BP neural networks enhancement algorithm of clustering for loadidentification was presented. In this method，each feature was relatived to the corresponding cluster based on the...
更多Number of views：2062 Amount of downloads：1106
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DAI Feng，CHEN Xuan，WANG Lixian，MA Hongzhong
Abstract: Partial discharge fault diagnosis and location of gas insulated metal enclosed transmission line（GIL）is of great significance for its internal insulation protection. Because GIL is fully enclosed structure，theexisting external detection method is not sensitive to the internal defect detection，so it is unab...
更多Number of views：2039 Amount of downloads：1033
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ZHUANG Gewei，GU Zhen ，FENG Xiuqing ，DUANYan
Abstract: Automatic verification system of smart meter may be abnormal in the long-term operation process，but the regular manual detection method can not timely learn the risk information，shortening the period of manual inspection will reduce the work efficiency of automatic verification. In most cases，the sample da...
更多Number of views：2189 Amount of downloads：1025
