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ZHANG Chunli,LIU Hongwen,FANG Pengxing,CHAI Chenchao,ZHANG Wenqiong
Abstract:Incidents such as the burning of electromagnetic voltage transformers(PT),damage to primaryharmonic suppressors,and fuse tripping occur frequently in low and medium voltage distribution systems due toferroresonance,severely affecting the safe and stable operation of the system. Therefore,through theoretical...
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Number of views:1936 Amount of downloads:6212
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FU Lulu,ZHAO Hong
Abstract: The classical model prediction algorithm of three-level grid-connected converter has manydisadvantages,such as large computation,unfixed switching frequency and difficulty in selecting weight factors,which limit its development in grid-connected converter field. To solve above problems,a modified control a...
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Number of views:4831 Amount of downloads:6211
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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:4357 Amount of downloads:6196
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HU Changsheng,LI Yang,SHAN Qiang,LIU Hui
Abstract: The fault-tolerant control of active power filter(APF)has component redundancy,which leads to the increase of fault-tolerant control error,the decrease of execution efficiency and fault-tolerant rate. Aiming at these problems,a fault-tolerant control method ofAPF based on component redundancy was proposed....
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Number of views:5101 Amount of downloads:6191
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LÜ Wei,WANG Han,ZHANG Jianwen,CHEN Gen,CAI Xu
Abstract: Compared with onshore wind power,the natural conditions at sea are bad and the traffic isinconvenient to maintain the wind power system,so wind power system needs to be highly reliable. The systemreliability can be effectively improved by using fault-tolerant control. A fault-tolerant control strategy by i...
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Number of views:4001 Amount of downloads:6186
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XUE Yufeng,SU Jianhui,WANG Haining,DU Yan
Abstract: When the input DC voltage is high,considering the limited voltage endurance capability of the powerswitch of the inverter,an input-series and output-parallel(ISOP)inverter topology was adopted,which is composed of two single-phase full-bridge inverter modules. The input DC voltage could be divided equally ...
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Number of views:3136 Amount of downloads:6182
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ZHANG Tingting,ZHAO Jinbin,DENG Ping,QU Keqing,ZHANG Junwei
Abstract: Aiming at the problems of low input voltage and high demand on driving voltage frequency andamplitude of the traffic sign power supply using smart electroluminescent(S.E.L)technology,a high rise ratio highfrequency inverter drive circuit based on the cascade connection of the Boost circuit with soft switch...
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Number of views:4758 Amount of downloads:6170
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CHEN Qi,HONG Feng,SHAO Dongwei,HU Xiangyu
Abstract: Pulsed xenon lamp is often used for performance testing of solar cells because its spectrum is mostsimilar to sunlight. The pulsed xenon lamp power supply is the key factor to ensure the reliable operation of thepulsed xenon lamp and improve the photoelectric conversion efficiency. In order to solve the pr...
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Number of views:1903 Amount of downloads:6168
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PAN Guangxu,GONG Chiyu,LI Xingyu,HU Jun,LI Yingjie,WANG Ruiqi
Abstract: As an essential part of power system design and operation scheduling,electric load forecasting istroubled by strong randomness and low accuracy. Moreover,the application of advanced forecasting algorithms isassociated with data management system,while the traditional data management system is very inconven...
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Number of views:4681 Amount of downloads:6166
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XU Qiongguo,ZHANG Weitao,LIU Guangwei,ZHOU Bin
Abstract: Independent DC microgrid with distributed power supply and energy storage system plays animportant role in improving power supply reliability. The energy scheduling optimization of DC microgrid underdifferent operating modes was discussed,including diesel generator,fuel cell,micro gas turbine,photovoltaic,...
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Number of views:4197 Amount of downloads:6157
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ZHAO Jianyong,LI Han,WU Min,MA Runsheng,ZHAO Wenqiang,YU Ziwei
Abstract: Firstly,the significance of impedance modeling for new energy power generation equipment wasanalyzed,and the existing impedance modeling methods were explained. Aiming at the problems of low flexiblematching degree,single disturbance signal,fixed disturbance frequency and the inability of real-time measure...
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Number of views:5015 Amount of downloads:6157
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REN Xuan,CHEN Tong,DONG Lizhi,HUANG Lingtong,ZHANG Mingxia
Abstract:When a large number of energy storage devices are integrated into the power grid through a virtualsynchronous generator(VSG),improper selection of control parameters in traditional fixed inertia and dampingcontrol strategies can lead to long adjustment times or large overshoot,and fail to fully leverage the...
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Number of views:2763 Amount of downloads:6155
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YOU Hao,SHI Hengchu,YANG Yuanhang,LI Yinyin,ZHU Qingcheng,XU Tengfei
Abstract: In order to solve the problems that the portable wave recording device needs to sample AC/DCvoltage samples with different input voltages,AC/DC current signals with different input currents and high sampling rate,an analog signal isolation sampling circuit was designed for portable wave recording device.Th...
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Number of views:4444 Amount of downloads:6155
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TANG Taonan,WANG Jian
Abstract: Aiming at the fault-tolerant operation problem of induction motor driving system with sensorfailures,a smooth fault-tolerant control strategy combining indirect field-oriented control(IFOC),direct torquecontrol(DTC)and V/f control was proposed. The indirect field-oriented controller and the direct torque c...
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Number of views:4480 Amount of downloads:6146
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ZHANG Jianwen,MA Haixiao,JIAN Jiahong,LIU Yueneng
Abstract:To eliminate the leakage current of single-phase non-isolated photovoltaic inverter,a six-switchphotovoltaic inverter topology with low leakage current was proposed. The topology consists of a voltage multipliercircuit,a common ground three-level inverter circuit and a LC output filter circuit. The combinat...
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Number of views:1023 Amount of downloads:6135