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XU Deshu,LIU Yanfang,ZHAO Hao,MA Zhiqiang
Abstract:The integrated energy system contains adjustable resources and flexible operating modes,which to acertain extent play a supporting role in the power grid and assist in optimizing its operation. Based on this,anoptimal operation model of integrated energy system considering support capacity to power grid was...
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Number of views:1479 Amount of downloads:5365
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LI Chasen,WANG Daihua,ZHANG Qiang,TANG Hong
Abstract: The crankshaft is an important component that determines the life of an internal combustion engine.It bears compound alternating stress for a long time,so it is easy to produce fatigue failure. Aiming at the shortageof crankshaft dynamic stress testing methods,a stress testing system with long endurance an...
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Number of views:4125 Amount of downloads:5364
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SUN Zhenqin,QU Jianhua,ZHANG Zhenzhen,QUAN Xiao,LI Hongbin,TAN Peng
Abstract: In order to improve the measurement accuracy of the position and speed closed-loop of the brushlessDC motor,which is currently used in the attitude control actuator,a new cumulative pulse M/T method wasproposed,based on incremental off-axis magnetic encoder(AS5304A)and TMS570 chip internal integratedenhance...
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Number of views:2080 Amount of downloads:5356
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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:2128 Amount of downloads:5354
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FANG Yong,SONG Tao,GUO Ziqiang,WANG Jian,GUO Jie
Abstract:With the continuous development of renewable energy sources and the increasing share ofrenewable energy in the grid,optimal coordination of maintenance work becomes increasingly important in order to ensure the safety of power supply in power systems considering renewable energy access. Current tools formai...
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Number of views:1737 Amount of downloads:5337
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TIAN Kai,YU Zhibin,YUAN Yuan,CHU ZiLin,CHEN Yujie,SUN Chuanjie
Abstract: A test method was proposed that can evaluate the ultimate power output capability of large capacityIGCT three-level converter. Based on synchronous symmetrical PWM modulation and temperature estimationmodel,the power experiment of IGCT three-level converter was carried out,which can test the equipment capa...
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Number of views:2498 Amount of downloads:5330
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LI Linwei,FU Zhimin,CHEN Mingfan,HE Lipeng,QIN Dan,HUANG Lige,CHENG Xi
Abstract: With the opening of the electricity market,the scattered and high idle rate of distributed energystorage has realistic conditions to participate in the aggregation and reuse,and the aggregation process caneffectively improve the efficiency of the power grid. The electric vehicles were taken as a typical re...
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Number of views:2944 Amount of downloads:5307
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CHEN Chen,DONG Pingxian,SONG Xiaofan,GUO Fang,QI Huanruo,DU Xiaotong
Abstract:After the distributed wind farm stations are integrated into the distribution network,due to thecharacteristics of wind farm short-circuit current amplitude control and frequency offset,the traditional three-stagecurrent protection of distribution network is difficult to accurately identify the fault on the...
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Number of views:1773 Amount of downloads:5303
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LUO Xiang,LIN Dong,ZHANG Zhenyu,WANG Jueying,CAI Zhiping,LIN Ruoyin
Abstract:To tackle the issues of low execution efficiency and poor fault tolerance in traditional faultlocalization methods for active distribution networks using swarm intelligence optimization algorithms,a two-stagefault location method was introduced based on the SSA-RF algorithm and cosine similarity. Firstly,th...
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Number of views:1593 Amount of downloads:5297
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PENG Yanlai,FAN Yong,YANG Xiaofeng,YANG Hongyu,WANG Zhixin
Abstract: Aiming at the problems that the amount of data in wind farm SCADA data is huge and it is difficultto classify the fast fault of wind turbine generator,a dynamic threshold AdaBoost algorithm(DTAdaBoost)wasproposed. Based on AdaBoost algorithm,the dynamic threshold was introduced to screen the sample set dat...
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Number of views:2065 Amount of downloads:5282
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ZHANG Baorui,WANG Jingtao,TAN Yao,WANG Zhiguang,LI Tang,SHI Yang
Abstract:Accurate short-term electrical load forecasting is of great significance for the design andoptimization scheduling of integrated energy systems(IES). However,the load data in real integrated energysystems are low-quality and fluctuating,so the forecasting accuracy of existing prediction models is low. A sho...
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Number of views:1788 Amount of downloads:5262
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LI Ning,LIU Ming,ZHANG Changjie,ZHANG Chenglin
Abstract:At present,the traditional passive filter in on-board charger(OBC) has poor low-frequencyperformance,an active feedback loop was added to the traditional on-board charger passive filter,a design method of on-board charger electromagnetic interference(EMI)hybrid filter based on current sensing and current in...
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Number of views:2231 Amount of downloads:5262
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JIANG Jingwen,ZHOU Jiemin,HONG Feng,ZHENG Gang
Abstract: On the basis of LLC,considering from the perspectives of soft-switching technology,DC/DCcascade converter technology and three-level technology,a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification,whichpro...
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Number of views:2155 Amount of downloads:5258
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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:2107 Amount of downloads:5243
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YU Hui,ZHOU Shigui ,MA Feihong,ZHANG Kecheng
Abstract:Permanent magnet synchronous machines(PMSM)has serious chattering problem when traditionalsliding mode observer(SMO)is applied to low-speed operation with fixed sliding mode gain. To solve thisproblem,a full-order sliding mode observer(FSMO)with fuzzy adaptive adjustment of sliding mode gain wasproposed,whi...
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Number of views:2662 Amount of downloads:5223