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ZHAO Jingjing,CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high,and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
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Number of views:1587 Amount of downloads:1691
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ZHANG Guoqiang,LI Rundong,HUANG Yuanming,DING Dawei,WANG Gaolin,XU Dianguo
Abstract: Supply interruption may occur during the operation of permanent magnet synchronous motor(PMSM)in some special applications and it needs to be restarted in the rotating state which is called flying start,the accurate initial position/speed observation is the foundation of flying start. Aiming at the problem...
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Number of views:1580 Amount of downloads:1574
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LIU Juan,HU Xiaolei,TENG Yiyina,ZHANG Shiqi,ZHANG Zhe
Abstract: Hydrogen fuel cells air compressor is an important accessory of hydrogen fuel cell,but the high costcaused by its high energy consumption hinders the further development of hydrogen fuel cell. In recent years,theindustry has gradually adopted variable frequency drives to control the operation of hydrogen f...
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Number of views:1576 Amount of downloads:2092
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LIU Zhongmin,ZHAO Danyang
Abstract: Non-invasive load monitoring monitors the working status of each electric equipment by installingan intelligent meter at the main power interface,aiming to collect and analyze users' power consumptioninformation in real time. According to different characteristics of household user load change in power...
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Number of views:1570 Amount of downloads:1273
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ZHOU Jie,ZHAO Shiwei,WU Yihao,YANG Xiangyu
Abstract:In order to optimize the current stress of dual active bridge(DAB)converter,an improved dualphase shift(IDPS)modulation was proposed based on the traditional dual phase shift(DPS)modulation. Firstly,the working principle of IDPS modulation was introduced,its steady-state working characteristics were analyze...
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Number of views:1537 Amount of downloads:1659
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WAN Xiaojian,WAN Zibo
Abstract:A rotor position detection strategy based on virtual neutral point was proposed to realize positionsensorless control of BLDC motor. Through the three-phase terminal voltage with the same value of three resistancesstar connection to construct a virtual neutral point,the relationship between the virtual neut...
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Number of views:1531 Amount of downloads:1504
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ZHANG Kuangyi,LIU Haitao,MA Bingtai,ZHANG Chengyu
Abstract: There are many fault distributions along the actual distribution network lines,but the existingvoltage sag stochastic assessment methods only consider the uniform fault distribution. According to the differentfault distribution characteristics along the line,a stochastic assessment method of voltage sag wa...
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Number of views:1518 Amount of downloads:1515
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CHEN Shaoxia,JIN Xinru,YAO Gang,ZHANG Jiajie,FAN Jia
Abstract:In recent years,with the increasing shortage of energy,the ship power system is transitioningtowards new energy upgrading. However,the uncertainty of new energy output has also brought new challenges tothe economic and safe operation of the system. Therefore,traditional ship energy management is no longerap...
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Number of views:1516 Amount of downloads:1340
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WANG Junlong,QIAN Xujun,LI Yongxiang,WANG Shouchang
Abstract: It is well known that the power system operation process will appear to require explicit justprediction difficulties and other problems,the power system operation reliability prediction model based oncontinuous collaborative machine learning algorithm was constructed.First,the continuous collaborative mach...
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Number of views:1515 Amount of downloads:1520
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MAYoujie,HE Xiaoyu,ZHOU Xuesong,ZHANG Chao
Abstract :To solve the chaos problem of inverter in new energy generation system,a regulation scheme ofH-bridge inverter based on active disturbance rejection contro(l ADRC)was proposed. Aiming at the phenomenon of poor steady-state and dynamic characteristics of inverters in chaotic state,a discrete model of the in...
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Number of views:1499 Amount of downloads:1225
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KONG Weizheng,WU Xiaoyu,DAI Hongcai,XU Kaiwen
Abstract: Carbon emission pressure on the optimal operation strategy of integrated energy system isintensified by environmental issues and low carbon policies. To address this issue,a multi-objective optimalscheduling model under the operation of the integrated energy system in the park was established,which conside...
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Number of views:1498 Amount of downloads:2129
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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:1495 Amount of downloads:1347
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MENG Chao,WANG Lianzhi,XIE Min,FU Yichao
Abstract: As the existing system fails to evaluate the process of pushing the power grid dispatch controlinstructions,the push delay and energy loss increase. A feature selection-based automatic push system for power grid dispatch control commands was proposed.According to the characteristics of power grid dispatch ...
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Number of views:1494 Amount of downloads:1421
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YIN Xiang,ZHANG Xiaojun,FENG Xinjia,CHENG Shi,TAO Yuxin,XIAYuande
Abstract:As the penetration rate of new energy and power electronic equipment increases,the inertia anddamping of the power system decrease,and the stability decreases.The grid-forming control technology builds avoltage source to support the stable operation of the large power grid through the converter,so as to pla...
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Number of views:1489 Amount of downloads:1517
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YANG Yanfang,LIANG Zhonghao,ZHANG Meiling,LIU Jiayi
Abstract: Aiming at the problem of low accuracy and comprehensiveness of current identification methods,amethod of reverse power anomaly identification in digital electric energy meter information sampling was proposed.Through the data acquisition system,the digital electric energy meter information sampling work was...
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Number of views:1486 Amount of downloads:1507