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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:421 Amount of downloads:435
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MIAO Haidong,ZHANG Qing,YAN Yong,ZHANG Lina,HUO Tingting,HAN Linjie
Abstract:In order to eliminate the problem of low inertia and large frequency fluctuation in wind power gridconnected system when power disturbance occurs,an improved virtual inertia control strategy was proposed. Acooperative control strategy of adaptive moment of inertia and damping coefficient was introduced in t...
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Number of views:482 Amount of downloads:596
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XU Can,MIAO Shuwei
Abstract:Wind turbine condition monitoring and wind power prediction both rely heavily on power curves.Firstly,to increase the modeling accuracy of wind turbine power curves,the random forest technique was used toscreen the important variables that influence wind energy capture ability. Then,the screened variables w...
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Number of views:635 Amount of downloads:658
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CHENG Liang,DUAN Pengyang,SU Hongbang,TIAN Shengjuan,QI Xiaoxuan,YAN Shengping
Abstract:In the background of a high proportion of new energy source connected to grid,the phenomenon ofnew energy interface inverters being connected to the grid through long-distance AC lines is becoming increasinglysignificant. The traditional vector controlled weak grid connected voltage source converter(VSC)bas...
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Number of views:597 Amount of downloads:689
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ZHU Yuanzhe,WANG Ling,WU Zhengrong,LÜ Hong,XIAO Fan
Abstract:In order to further improve the output performance and efficiency of the converter,a grid-connectedconverter based on heterogeneous device mixing was proposed,referred to as heterogeneous grid-connectedconverter(HGCC). The HGCC consists of two half-bridge modules based on SiC MOSFET devices,which arecross-c...
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Number of views:651 Amount of downloads:785
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MIAO Yuntao,WANG Chengxian,LI Junda,GU Jiateng,ZHANG Zhenbin
Abstract:Model predictive control(MPC)is an effective control strategy for permanent magnet synchronousgenerators(PMSG)due to its fast dynamic response and multi-objective optimization capabilities. However,MPCrelies on accurate system models and sensor measurements. In practical conditions,parameter mismatch caused...
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Number of views:752 Amount of downloads:773
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HOU Yongquan,MA Lifang,MEI Shuang,WU Bo,WANG Tan,LU Tao
Abstract:In recent years,the use of microinverters has received a lot of attention as one of the viable methodsfor residential and commercial PV power conversion systems. Flyback inverters operating in current continuousconduction mode(CCM)have been widely studied for their low output ripple current,high efficiency,...
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Number of views:639 Amount of downloads:845
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FANG Lei,XU Jun,ZHAO Yi,XING Xiaofan,MAO Huan
Abstract:The traditional technical line loss prediction method of low voltage station area has some problems,such as relatively extensive calculation,requiring underlying physical topology,and relying on influencecharacteristic data. In recent years,a technical line loss and meter error joint estimation technical ro...
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Number of views:546 Amount of downloads:662
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LI Hongqiang,WEI Yawei,MA Jing,ZHOU Lei,ZHANG Hanhua ,LU Guangming
Abstract:Under the large-scale renewable energy integrated with uncertain output characteristics,balancingthe supply and demand within a local area becomes a new challenge. The long-distance transmission andconsumption scheme is utilized for the sending-end grid to meet the requirements of renewable energy consumpti...
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Number of views:712 Amount of downloads:703
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SUN Mengen,GONG Haiming,ZHAO Jie,SUN Rongrong,LU Huiwen,WANG Hui
Abstract:Accurate topology and line parameter information is the basis of state estimation and securitycontrol of distribution network. Affected by the performance of collection terminals and environmental factors,themeasurement error of metering equipment often deviates from Gaussian distribution. Higher requiremen...
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Number of views:574 Amount of downloads:736
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JIANG Yang,CHEN Zhong,WU Yongkang
Abstract:The permanent magnet synchronous generator(PMSG)is prone to current overstep in unbalancedgrid,which affects the reliability of grid-connected system. To solve this problem,low-voltage ride-throgh controlstrategy based on direct power control was proposed. In this strategy,the direct power inner loop was us...
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Number of views:550 Amount of downloads:533
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RUAN Bo,YI Bonian,YE Xuecheng,LE Jian,LANG Hongke,REN Yi
Abstract:The electricity power price setting mechanism will be fundamentally reformed with the continuousadvancement of a new round of electricity market-oriented reform. Presently,some provincial and regional powergrid enterprises are facing the problem of large fluctuations in electricity prices,which is not condu...
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Number of views:569 Amount of downloads:599
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LIU Yanlong,HAN Pingping,CHEN Xiaoguang,GUO Jialin
Abstract:With the increasing penetration of new energy equipment,while alleviating the environmentalproblems caused by fossil energy,it also increases the frequency instability of the system. Photovoltaic(PV)andother new energy equipment to participate in the grid frequency regulation is an effective way to improve ...
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Number of views:534 Amount of downloads:528
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YANG Yan,LIU Tong,JIN Panlong,QI Caijuan
Abstract:In order to solve the problem that the time-of-use price is not taken into account in the calculation ofthe peaking cost in the case of a large number of renewable energy sources,a method of calculating the peakingcost of power system with time-of-use price was proposed. First,the key scenarios of power gri...
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Number of views:622 Amount of downloads:574
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YANG Lei,WANG Xianjun,WANG Zijian,ZHAO Weihua,LI Peng,LI Mengxi
Abstract:As the penetration rate of household distributed PV in China's low-voltage distribution networkcontinues to increase,the power flow of the distribution network has changed,leading to more serious problemssuch as node voltage overruns and three-phase imbalance,which poses a serious threat to the safe and...
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Number of views:822 Amount of downloads:575