Reliability and diagnosis
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CHAI Bin,SHI Lei,LIU Zhiyuan,XU Hui
Abstract: The circuit breaker of AC filter in converter station is an important part of HVDC system. Theoccurrence of internal faults will directly affect the stable operation of HVDC system. In view of the fault diagnosisof the circuit breaker for filter,an efficient online monitoring method was proposed to diagnos...
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Number of views:3842 Amount of downloads:2772
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SONG Zhuoran,LI Jianfeng,JIANG Tao,DENG Xinyang,LIU Yu
Abstract: There are parameter identification errors in the process of distribution network synchronousmeasurement configuration. The optimal configuration method of distribution network synchronous measurementdevice based on parameter identification accuracy was studied. Based on the measurement data of the synchron...
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Number of views:2542 Amount of downloads:1006
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KONG Fanting,WANG Yang,YANG Hao,CHEN Jian,LU Lin
Abstract: High-voltage/low-voltage prefabricated substation is short for“box substation”,its nature of savingenergy has been widely researched. The research have been from choosing components to optimizing structure. Agreat of improved products have swarmed into market. But there is neither a set of method to test l...
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Number of views:2693 Amount of downloads:968
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REN Wei,ZHAI Bohao,PENG Weisong
Abstract: With the improvement of computer operation level,data-driven technology is widely used inmetallurgical industry. Accurate prediction of rolling force is helpful to shorten the length of strip head and tail andimprove the yield of strip. In order to solve the problem of low prediction accuracy of data-drive...
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Number of views:2613 Amount of downloads:997
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GAI Zhiqiang,XUE Bin,LIYajie
Abstract: The traditional fault location method lack effective fault location process,which leads to the increaseof ranging error,fault location time and complexity. In order to effectively solve the above problems,a new faultlocation method for multi-power distribution network based on traveling wave theory was des...
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Number of views:2648 Amount of downloads:995
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ZHANG Zhi,WANG Xinyu,WANG Lin
Abstract: At present,the most commonly used methods for identifying photovoltaic cell parameters areanalytical methods and intelligent optimization algorithms. The sparrow search algorithm(SSA)is a newlyproposed intelligent optimization algorithm. It has the advantages of traditional intelligent optimization algorit...
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Number of views:2692 Amount of downloads:1040
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YAN Hao,BA Sang,GU Yi
Abstract: Insulation failure can cause motor turn-to-turn,phase-to-ground and ground-to-ground faults,ranging from equipment downtime,or endangering personal safety,resulting in catastrophic consequences. In order to be able to carry out online sensitive monitoring of the deterioration state in the early stage of tu...
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Number of views:2882 Amount of downloads:1047
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NIU Shengsuo,WU Zhenan,HUANG Shengpo
Abstract: The test of the internal cable conductivity of the traditional bullet train is time-consuming andlaborious,which increases the probability of false detection,seriously affects the accuracy and reliability of cabledetection results of bullet trains,and greatly reduces the safety and stability of bullet trai...
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Number of views:2849 Amount of downloads:1121
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LI Yangyang,HU Jinlei,LAI Junju,WANG Wei,YANG Fan
Abstract: Aiming at the on-site live detection data of switchgear,a mean-shift clustering algorithm based onmulti-dimensional feature quantity was proposed to identify the abnormal partial discharge of switchgear. Theswitchgear partial discharge detection data which include dispersion,average distance percentage,con...
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Number of views:2922 Amount of downloads:1120
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DING Yi1,LIU Shengzhong,WANG Xudong,HUO Xianxu,HU Zhigang,JIANG Fan
Abstract: The estimation method of state of health(SOH)of lead-acid battery based on chaotic particle swarmoptimization-Gaussian process regression(CPSO-GPR)was proposed. Firstly,the voltage and current curves of leadacid battery during charging process were investigated,and the characteristics of constant current c...
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Number of views:2868 Amount of downloads:1084
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DONG Yongle,ZHANG Jiang,ZHANG Lifang,ZHANG Qi
Abstract: In view of the increasing factors of power demand in our country,and the low efficiency of traditionalstatic model and adjustment mode of distribution network based on artificial experience,which can not meet thepractical needs of high-level applications such as refined line loss of distribution network. I...
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Number of views:2893 Amount of downloads:1128
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LÜ Chao,JIA Junqing,ZHOU Jia,WU Tianyu
Abstract: The rapid development of artificial intelligence algorithm and edge computing technology has laid afoundation for the development of a new type of over-voltage identification device of distribution network withhigher identification rate and stronger intelligence. A design method of hardware and software sy...
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Number of views:3063 Amount of downloads:1167
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LIU Jinchao,DUAN Hongmin,WU Letao,LIU Ligang,XU Chao
Abstract: Aiming at the phenomenon of pressure relief and deflagration caused by the faults of oil-immersedtransformer,a logic was proposed that the transformer can keep self-maintained running when faults occurred,and according to the logic,a scheme of oil circuit equipment was designed. The above logic and the sch...
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Number of views:3224 Amount of downloads:1190
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GUO Dengke,MI Wentao,ZHUANG Feihu,XU Yiduan,FAN Ruini
Abstract: According to the requirements of quickly and reasonably formulating load transfer measures afterdistribution network failure at this stage,a reliability evaluation scheme for fault transfer based on K-fold verification was introduced. Square up various power supply modes,according to the energy balance equ...
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Number of views:3117 Amount of downloads:1180
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HU Bo,LI Tong,WANG Yihe,CUI Jia,YANG Junyou,XU Junjin
Abstract: Combined with the feature extraction ability of self-coding and the time series analysis ability oflong short-term memory(LSTM),a short-term load forecasting model based on LSTM self-coding was proposed.First of all,based on the basic principle and flow of the depth model,the functional characteristics of t...
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Number of views:4273 Amount of downloads:2233