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RAO Yao,CHENG Yuan,BAI Xinlei,DING Sheng,XIAO Shen,LIU Ziyi
Abstract:For cross-regional asynchronous-tied grid of voltage source converter based high voltage directcurrent(VSC-HVDC)transmission system,a frequency support control strategy for energy storage devices basedon 5G communication was proposed. Firstly,the frequency-voltage droop control and frequency restoration co...
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Number of views:423 Amount of downloads:1763
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XIONG Xianzhi,ZHU Jinyu,LI Jiafeng,CHENG Xiaoxuan,LI Tianze
Abstract:To achieve effective integration of renewable energy and reduce the instantaneous powerfluctuations of wind power,a hybrid energy storage system(HESS)operation strategy and integrated capacityallocation considering the smoothing of power fluctuation of wind farms was proposed by leveraging thecomplementary...
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Number of views:455 Amount of downloads:1695
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LI Ming,WEI Chengzhi,GUO Xiaoyi,ZHAO Ruifeng,LU Jiangang,CHEN Yizhe,GAO Yifan,GAN Kai
Abstract:In the new power system,the generation method and operating characteristics of new energy aresignificantly different from traditional synchronous machines,and the safe and stable operation of frequency facesnew challenges and opportunities. When there is a large frequency fluctuation caused by high-power d...
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Number of views:476 Amount of downloads:1703
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LI Juan,JIANG Yunlong,ZHU Rui,YANG Xiong
Abstract:Recent advancements in high-precision measurement devices,such as mirco-phase measurementunit(μPMU),offer technical support for regional protection schemes. However,deploying μPMU across allnetwork nodes remains impractical due to economic and practical constraints. Therefore,under low-resistancegrounded d...
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Number of views:445 Amount of downloads:1664
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WANG Songcen,NAN Kai,BAI Xinlei,LIU Kaicheng,GUO Wei,DONG Shufeng
Abstract:In integrated energy systems,centralized control has traditionally been used for state of charge(SOC)balancing of storage units. Recently,decentralized distributed control relying on communication has gained research attention. A multi-agent system and a dynamic consensus algorithm was introduced,enabling ...
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Number of views:458 Amount of downloads:1601
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WANG Fei,LI Yuantao,KONG Jianbin,MA Xinsheng
Abstract:In the "source-grid-load-storage" system with new energy integration,electric vehicles(EVs)clusters face challenges such as differences in users' charging behaviors and dynamic changes in system demandswhen participating in peak-shaving auxiliary services. An optimized charging strategy model was propo...
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Number of views:304 Amount of downloads:1247
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WANG Yuwei,WANG Jing,WANG Yong,CHU Yunfei,LI Boqiang,LI Shuguang
Abstract:Aiming at the voltage fluctuation problem in the integrated electricity-gas system(IEGS)andconsidering the reactive power support capability of new energy units and coupling elements,a reactive power andvoltage optimization control method for the IEGS was proposed. First,based on the analysis of the compos...
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Number of views:1105 Amount of downloads:4042
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YANG Xiaoxia,ZENG Fei,MIAO Huiyu,YUAN Xiaodong,CAO Yuchen,QIN Jiasheng
Abstract:With the high proportion of distributed photovoltaic power generation connected to the power grid,the single-phase grid connection of distributed power generation has exacerbated the imbalance of the power grid.In addition,the number of DC electrical equipment is increasing in the industrial and constructi...
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Number of views:1101 Amount of downloads:3982
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ZHOU Jianhua,ZHANG Ruining,TAO Kai,XU Junjun
Abstract:The risk of voltage violations and fluctuations has surged due to the high penetration of distributedrenewable energy and the large-scale application of new power electronic devices. Therefore,it is essential tooptimize the control system of reactive voltage through intelligent methods for the reliability ...
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Number of views:1064 Amount of downloads:4175
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LÜ Zhenhua,LI Qiang,ZHANG Sen
Abstract:Grid-forming converter(GFC)can provide voltage and frequency support for the power grid,effectively improving the stability of power electronic power systems,but there is a risk of transient instabilityunder large disturbances. By studying the key factors affecting the transient stability of GFC and conduc...
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Number of views:826 Amount of downloads:3702
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GAO Qiangwei,ZHUO Chengcheng,LIU Yichao,YUE Yang
Abstract:To accurately assess the power quality status of a system,a comprehensive power quality evaluationmethod based on a combined weighting approach and the normal cloud model was proposed. Initially,acomprehensive evaluation framework for power quality was established,encompassing three key dimensions:amplitud...
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Number of views:820 Amount of downloads:3281
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ZHOU Weiyi,LOU Chengyu,WEI Dong,XU Yudong
Abstract:To optimize the performance of proton exchange membrane fuel cell(PEMFC)systems and enhancefuel utilization,a calculation model for fuel utilization based on internal resistance characteristics was established.The effects of operating conditions—specifically,operating temperature and humidity—on internal r...
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Number of views:738 Amount of downloads:3480
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LI Li,PANG Shengyang,ZHONG Ronghao,HUANG Qingdan,ZHANG Liping,ZHANG Yachao
Abstract:With the increase in electricity demand,the rising maintenance costs of substation projects have putpower grid companies under huge market pressure. Traditional cost methods cannot meet the needs of modernmarkets,so the construction of intelligent cost calculation models is the key to realize the modernizat...
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Number of views:1487 Amount of downloads:6619
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SUN Xiangfei,LI Ping,DA Guangjun,DOU Xiaochang
Abstract:Due to the large rotational inertia of synchronous machines,frequency changes caused by faults areminimal. In contrast,new energy systems have smaller rotational inertia,which can result in more significantfrequency variations during faults. These larger frequency fluctuations inevitably lead to changes in ...
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Number of views:1449 Amount of downloads:7535
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ZHANG Hengrong,ZHENG Youzhuo,DUAN Liwei,LONG Zhi,WENG Di
Abstract:Aiming at the problem of peak-valley difference increase and voltage violation caused by large-scalefluctuation of network power in multi-time sections under high-proportion photovoltaic distribution network,apeak-shaving optimization strategy based on feeder load power control and multi-type resources was ...
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Number of views:1160 Amount of downloads:6541