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ZHENG Junfeng,HUANG Jiyuan,CHEN Yuanyang,HU Xiangwei
Abstract: Aiming at the frequent voltage sag problem in power quality problems,a multifunctional voltage sagtreatment equipment was developed for user-side voltage sag treatment. Based on the modeling analysis of thesystem,the control algorithm of the system under grid-connected and off-grid compensation states and ...
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Number of views:1802 Amount of downloads:6545
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JIAO Yingxue,HUANG Xuejin
Abstract: The problem of secondary frequency recovery and active power distribution for AC microgrid(MG)with bounded time delay were studied. A distributed dynamic event triggering control method was proposedfor distributed generator sets. The method used dynamic event triggering mechanism,which could greatly reduce...
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Number of views:2520 Amount of downloads:6540
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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...
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Number of views:3338 Amount of downloads:6539
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王德明,李英量,贾俊辉,解晨,王语园
Abstract: The conventional overcurrent protection is ineffective in isolating faults in microgrids due to the lowfault current level contributed by distributed generations(DGs). Because of its high agility and adaptability,themeasured impedance-based protection schemes are considered as common alternatives to detect...
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Number of views:3124 Amount of downloads:6535
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ZHAN Yubing,TAO Deshun,WANG Changxing,CHEN Liangliang,LIU Hongpeng
Abstract:In order to cope with the impact of large-scale access to new energy sources such as wind power,photovoltaic and electric vehicles on the spatial characteristics of the power grid,a novel dynamic probabilistictrend analysis method was proposed. Firstly,the probability distribution model of wind and light po...
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Number of views:1565 Amount of downloads:6534
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ZHANG Mingqi,YE Hong,LIANG Hao,ZHAO Bo,WANG Chao,WANG Kui
Abstract:Aiming at the problem that the circulating currents analysis of modular multilevel matrix converter(M3C)is not deep enough and the frequency component of circulating currents is not clear,the coupling process of submodule capacitor voltage fluctuation,bridge voltage fluctuation and circulating currents in M...
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Number of views:1700 Amount of downloads:6528
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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:4656 Amount of downloads:6520
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YUAN Yisheng,HUANG Yikun,CAO Hui,HUANG Zhimin
Abstract:A bidirectional isolated resonant converter with variable mode and wide voltage range wasproposed. The proposed converter has the advantages of BOOST circuit and flyback current feed topology. Byreusing the pre-storage and flyback energy feedback of the resonant inductor,it can improve the gain from thebatt...
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Number of views:1728 Amount of downloads:6512
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LIU Xianyi,SHI Xinghao,JIANG Yikang,PAN Xiumin,QU Le,HUANG Feng
Abstract:Aiming at the problem of low recognition accuracy of electricity stealing behavior,an electricitystealing behavior recognition model based on joint neural network was proposed. Firstly,the acquired userelectricity consumption data was processed,and the user electricity consumption data was two-dimensionally...
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Number of views:1967 Amount of downloads:6503
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JI Huancong,XIA Chengjun,WANG Zeqing,LAI Shengjie
Abstract: Aiming at the problems of high cost and poor voltage quality in the conventional power distributionscheme of long-distance electrical equipment of rail transit,a technical scheme of DC power distribution for longdistance electrical equipment was proposed to achieve the purpose of improving voltage quality ...
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Number of views:2278 Amount of downloads:6496
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LIU Xiaodong,SUN Lunan,LIU Yawei,GUAN Peng,RONG Xifeng
Abstract: In order to meet the needs of the testing laboratory's task scheduling and process design functions,the new applications were developed based on the existing laboratory information management system,such asscheduling system and process designer. According to the type and priority of the test task,the t...
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Number of views:5116 Amount of downloads:6491
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CHEN Xuling,LIU Cheng,XU Xinwei,DONG Shuo,TIAN Ting
Abstract:Taking the planar rotation mechanism as an example,a magnetic coupling wireless powertransmission system was designed and studied from two perspectives:the spatial structure of the coils and theresonant compensation circuit. This system aimed to reduce the voltage fluctuations caused by significant changesi...
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Number of views:2182 Amount of downloads:6489
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DING Qiang,ZHU Jie,JIANG Yingxu
Abstract: Direct-drive electrically excited synchronous motor(EESM)is obtained widespread utilization inwind power generation system due to its advantages of simple construction and low cost. Firstly,a mathematicalmodel of EESM was derived and the direct torque control(DTC)algorithm for EESM was introduced based on ...
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Number of views:3276 Amount of downloads:6488
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XIE Jijin,HUANG Wendong,SHEN Kang,LIU Bin,MENG Ningjia,ZHANG Yuanyuan
Abstract:In order to improve the compensation effect of LCL-type shunt active power filter,a frequencyadaptive decimal delay repetitive control based on IIR filter was proposed. The resonance suppression loop of LCLwas designed through root locus and the design result was used as a new control object for repetitive ...
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Number of views:1731 Amount of downloads:6483
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WU Yihao,ZHAO Shiwei,ZHOU Jie,XIAO Chaoren
Abstract:In order to solve the problem of large peak-to-peak inductor currents in dual active bridge converterswith mismatched input and output voltages,a four-degree-of-freedom modulation(FDFM)strategy was proposedby combining symmetric duty cycle modulation and asymmetric duty cycle modulation. By analyzing the op...
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Number of views:1509 Amount of downloads:6483