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YANG Yidong
Abstract:In the grid load control and planning of distribution network,in order to optimize the grid structureof distribution network,such as line loss,power supply quality and load,a grid load control and planningtechnology based on differential evolution algorithm was proposed. For all kinds of power generation de...
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Number of views:2412 Amount of downloads:9717
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PENG Yinzhang,WANG Chen,NAN Dongliang,XIAO Chao,YANG Shuai
Abstract:AC-DC hybrid power grid can balance the power flow during the operation of the power system ina large range,which is conducive to improving the access capacity and access range of large-scale access of newenergy to the power grid,which is an important trend in the development of modern power grid. In order ...
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Number of views:2602 Amount of downloads:8443
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JIANG Jian,XU Fengliang,WANG Fayi
Abstract:Reasonable planning of the active distribution network is an important part to improve the windenergy accommodation capability,however,the overuse of the wind power output and load timing characteristicsincrease the difficulty of model solving and have adverse effects on the optimal results. The Latin hyper...
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Number of views:2523 Amount of downloads:9241
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ZHAO Enlai,HU Yu,GUO Jun,SU Xinlei,LIU Pengyuan,YANG Jun
Abstract:In view of the fact that the original high-dimensional nonlinear power flow model cannot be appliedto the linear planning of distribution network,and the existing linear power flow model has the problem of weakuniversality,a calculation method of distribution network linear power flow was proposed consideri...
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Number of views:2216 Amount of downloads:10298
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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:2797 Amount of downloads:8025
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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:3555 Amount of downloads:9718
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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:3491 Amount of downloads:10821
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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:2896 Amount of downloads:8714
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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:2703 Amount of downloads:8454
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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:2687 Amount of downloads:7100
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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:3167 Amount of downloads:8756
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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:2564 Amount of downloads:8998
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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:2566 Amount of downloads:7911
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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:2525 Amount of downloads:9228
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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:2697 Amount of downloads:7490