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ZHANG Junkun,LEI Ertao,JIN Li,MA Kai,XIA Chenyang,WANG Xirui
Abstract:The rapid development of modern power electronics technology promotes the insulated gate bipolartransistor(IGBT)wide range of applications in the AC motor drive,inverter,switching power supply and newenergy industry. In the application process of IGBT,due to the complex and varied circuit topology and syste...
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Number of views:891 Amount of downloads:961
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WU Yue
Abstract:The problem of AC train passing neutral section can be solved by ground's flexible passing neutralsection method. However,for multisystem electric locomotives,the switching of power supply system in neutralzone is much more complicated,but there is little research at present. Based on the approach of ve...
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Number of views:629 Amount of downloads:753
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LI Juan,WEI Yalong,ZHANG Shiqian,GONG Peijiao
Abstract:A three-phase four-wire energy storage type low-voltage control device with the function of gridvoltage unbalance compensation was designed. Firstly,a control method based on active voltage droop and constant power factor was introduced in detail to solve the problem of low voltage at the terminal of substa...
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Number of views:697 Amount of downloads:943
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GONG Weizheng,YAO Yin,CHEN Mengying,LI Dongdong,ZHANG Xianming,ZHU Yedong
Abstract:The rapid increase in the proportion of renewable energy in the East China Power Grid System andthe continuous decline in the rotational inertia and frequency modulation resources in the system will pose a threatto the system's frequency immunity and stability. The existing research focuses on the devel...
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Number of views:547 Amount of downloads:456
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ZHANG Xuyang,ZHANG Maosong,WANG Xiuqin,CHEN Zhong,WANG Qunjing
Abstract:In view of the problem that the transfer branch of the current high-voltage DC circuit breaker mostlyadopts uncontrollable full-bridge transformer coupling energy supply,which is not conducive to controllable andstable power supply,and low energy utilization,a combined DC circuit breaker energy supply metho...
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Number of views:514 Amount of downloads:500
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FAN Yuanliang,ZHU Junwei,WU Han,HAN Xiaolan,HUANG Xinghua,CHEN Jinyu
Abstract:Accurately estimating the state of health(SOH)of lithium-ion batteries is crucial for optimizingenergy storage systems' operation,management,and maintenance. Existing methods that extract health featuresfrom single-stage charging data fail to exploit battery aging information fully,leading to a suboptim...
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Number of views:517 Amount of downloads:972
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WANG Xuli,XU Jiayin,SHEN Yuming,LI Kun,FENG Peiru,JIANG Guifen
Abstract:In order to make full use of the frequency modulation capability of the wind turbines,consideringthat a conventional wind-power coordinated frequency control strategy not only results in some fluctuations in thefrequency of the system,but also requires high energy storage capacity and poor economic efficien...
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Number of views:506 Amount of downloads:779
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GENG Likai,HOU Juan,ZHANG Chunxiang,HU Wenying,LI Wenhua,LI Cuijuan
Abstract:Thermal and magnetic protection circuit breakers provided short circuit protection by instantaneoustripping devices. In the magnetic field formed by the coil with current,the moving armature and stationary coreovercomed the spring force and engage under the influence of electromagnetic force,thereby pushing...
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Number of views:545 Amount of downloads:421
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XU Hai,MI Yanqing,WANG Yanyang,XU Zhipeng
Abstract:Permanent magnet synchronous motor(PMSM)has the advantages of fast dynamic response,highpower density,and high torque at low speed,but the temperature variation and complex working conditions willcause the variation of PMSM parameters,thus affect motor performance and reduce the output efficiency. Toaddress...
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Number of views:747 Amount of downloads:667
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DONG Lizhi,ZHAI Bingcong,WANG Kaifeng,JIA Xuecui
Abstract:When multiple energy storage units are connected to an energy storage station by the powerelectronic converter,the interaction and coupling effect bring challenges to the stable operation of the system. Thesmall-signal model of the parallel storage system was established. The stability analysis was carried ...
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Number of views:710 Amount of downloads:596
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ZHANG Junling,YIN Peng,WANG Jiwei,LONG Mengjiao
Abstract:Relay coil is an effective method to improve the performance of wireless power transmission. Butthe selection of relay coil position is usually based on experience. To elucidate the mechanism of the impact of relaycoils on system performance,the port impedance differences between typical two-coil and relay-...
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Number of views:737 Amount of downloads:614
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ZHOU Yi,FANG Wei,GONG Min,XIA Xuesong,CHEN Yanling,HAN Ni
Abstract:Despite bringing several benefits to modern power systems,distributed generation(DG)andmicrogrids cause a significant impact on the operation of power distribution networks,especially with regard to theprotection system. In this new scenario,the adoption of smart protection systems capable of incorporating ...
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Number of views:687 Amount of downloads:500
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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:662 Amount of downloads:493
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BAI Yansong,LI Guorong,CAO Dayou,ZHOU Yan
Abstract:Owing to the influence of wave fluctuation,the output power of ship photovoltaic(PV)powergeneration system is in the state of fluctuation,which significantly affects the quality of electricity and thereliability of power supply,and the sun-tracking algorithm of the land-based PV system fails to adapt to theo...
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Number of views:597 Amount of downloads:659
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QU Bo,LI Xin,XIANG Xingyao,ZHANG Ping,WANG Dan
Abstract:A microgrid optimization scheduling model considering dynamic network reconstruction wasproposed for the parallel and off grid scheduling problem of microgrids. The proposed model was based on Bendersdecomposition and decomposes the optimal scheduling problem of microgrids into a grid-connected operationmas...
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Number of views:581 Amount of downloads:590