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LÜ Zhengyu
Abstract:The power transmission and transformation system is an important link of power transmission. Inorder to reduce the cost of operation and maintenance and improve the recognition effect,an application method of automatic identification and control of transmission and transformation vulnerable lines was propos...
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Number of views:371 Amount of downloads:196
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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:1281 Amount of downloads:780
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SHI Liguo,LI Yanzhen,LI Yuanfu,GUAN Xuelin,XU Zhigen,ZHANG Mingyuan
Abstract:Three-level neutral-point-clamped(3L-NPC)interconnected converters have been widely used inthe AC-DC hybrid distribution grids due to their superiorities of large capacity and high power quality. However,their working conditions are always with high power,varying load,and limited heat dissipation,etc.,with ...
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Number of views:1244 Amount of downloads:816
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HU Yujie,ZHU Shenglong,WU Shaolei,FENG Yu,WANG Ming,LOU Wei
Abstract:The flexible DC interconnection of medium and low voltage can improve the flexibility andreliability of the distribution network,and the dual active bridge converter is a key link in achieving voltageconversion and electrical isolation in flexible interconnection equipment.The current source resonant dual a...
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Number of views:987 Amount of downloads:753
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ZHOU Qi,WANG Chenqing,KONG Xiangping
Abstract:Considering that the problem of voltage fluctuations on the DC side caused by the three-phaseimbalance of the AC grid of the flexible interconnection device,a DC voltage fluctuation suppression strategy forflexible interconnection device based on the Torricelli point was proposed. Firstly,by defining the To...
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Number of views:1114 Amount of downloads:668
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WANG Zhengqi,WEI Wei
Abstract:Flexible multi-state switch(FMSS) is a new type of power electronic device that replacestraditional tie switches and is applied to modern distribution networks. It can optimize the consumption andregulation of distributed power sources in modern distribution networks. The FMSS controlled by VSG is notaffect...
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Number of views:986 Amount of downloads:673
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TAO Yan,WANG Chenqing,ZHENG Mingzhong,YUAN Yubo,KONG Xiangping,LIN Jinjiao
Abstract:With the rapid development of the society and economy and the accelerated construction of newpower systems,flexible interconnection has gradually become an important technical means for upgrading thestructure and enhancing the flexible regulation ability of distribution network. A power coordinated control ...
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Number of views:993 Amount of downloads:853
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WANG Huahan,ZHAO Shiwei
Abstract:A dual active bridge(DAB)DC-DC converter voltage control strategy based on double-integralsliding mode control was proposed,which can obtain good control effect under the condition that the modelaccuracy requirements are low and the controller design process is simple. Firstly,the reduced-order model of the...
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Number of views:719 Amount of downloads:539
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YANG Zhenyu,WANG Wei,XU Wenzheng,ZUO Zhiling,CHEN Changqing
Abstract:The telecommunication power supply applied in 5G base stations can save energy consumption byreducing the output voltage when the equipment works in standby state. Nevertheless,frequent and rapid outputvoltage regulating of the converters is challenging. To solve this problem,the concept of partial power co...
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Number of views:428 Amount of downloads:320
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ZHANG Xudong,WANG Yangyang,LI Xiaolong,LÜ Jin
Abstract:Aiming at the problem that the ripple content of current and voltage in cycloconverter speed controlsystem is large and the ripple period is time-varying,the real-time sampling value is not suited for feeding back tothe speed control system directly,a variable period mean sampling algorithm was proposed. Fi...
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Number of views:408 Amount of downloads:292
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DENG Jiahao,LIN Lingxue,ZHU Lin,WU Zilong
Abstract:Up to now,the distribution network planning project optimization method rarely considered theimpact of the speed of load growth on the power supply efficiency of the project and the year when the project isselected,and rarely considered the urgency,technical benefit and economic benefit of the project at th...
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Number of views:504 Amount of downloads:282
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ZHOU Hao,DING Yu,WEI Xu,LI Xuesong,FAN Tianrong
Abstract:With the continuous promotion of the "double carbon" strategy,the reformation of China'selectricity market has entered a new stage,but the overall construction of the electricity market is still in theprimary stage,and there is an urgent need to develop a scientific and feasible regulatory prevention st...
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Number of views:527 Amount of downloads:260
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ZHANG Chunxiang,LI Xin,SUN Ning
Abstract:DC high current comprehensive characteristic test device is used to detect the released characteristicsof DC low-voltage electrical overcurrent protection electrical device,which is used in low-voltage electricalindustry for DC products for long time delay,short time delay,instantaneous tripping test and sh...
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Number of views:391 Amount of downloads:214
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CHEN Xiaoru,HUANG Longyi,YANG Mingjia,LAI Shengjie,CHI Zibin,XIA Chengjun
Abstract:In view of the lack of flexibility in the input and exit of the current metal sheath loop suppressiondevice for high voltage cables,the problems such as excessive induced voltage of the sheath and excessive powerloss were not considered when determining the suppression impedance value,a loop suppression dev...
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Number of views:417 Amount of downloads:260
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LU Guijun,JIA Pengfei,WANG Yubo,LIU Jing,YU Shouquan
Abstract: Permanent magnet synchronous motors play an important role in industrial automation,automotive,aerospace,household appliances,and other fields due to their high efficiency,high power density,good torque performance,and ease of control. However,in the field of electrical transmission,it is not onlynecessary...
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Number of views:877 Amount of downloads:561