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LIU Ronghui,MA Tiantian ,SUN Gaiping
Abstract:The potential dispatchable resources of electric power,heat,cool and gas in the integrated energysystem(IES)are important contributors to reduce the operating cost of IES. In order to guarantee the customersatisfaction while reducing operating cost of IES,a IES day-ahead optimal dispatch model considering a...
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Number of views:3104 Amount of downloads:5052
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CHEN Biao,HAN Zhongxiu,MA Liqiang,ZHANG Renhe
Abstract:The back-to-back active neutral-point-clamped(ANPC)converter,as the core component of theunified power flow controller of the distribution network,is widely used for the flexible closed-loop operation.However,the ANPC converter has more switching devices and commutation paths,which significantly increasesth...
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Number of views:1479 Amount of downloads:5051
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LIU Xinglong,XIE Yihan,YANG Ziyang,ZHANG Zhilong,YI Hao,ZHUO Fang
Abstract:Active power filters(APF)are widely used for dynamic compensation of power system harmonic.However,under weak grid conditions,the interaction between APF,nonlinear loads and grid impedance can easily lead to the stability issue of harmonic oscillation around the compensation frequency,resulting in the fault...
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Number of views:2394 Amount of downloads:5045
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GAI Zhiqiang,XUE Bin,LIYajie
Abstract: The traditional fault location method lack effective fault location process,which leads to the increaseof ranging error,fault location time and complexity. In order to effectively solve the above problems,a new faultlocation method for multi-power distribution network based on traveling wave theory was des...
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Number of views:4453 Amount of downloads:5040
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PAN Ling,FENG Qian,ZHANG Peng,SHEN Bing,ZHOU Jian,CHEN Ran,ZHAO Jinshuai
Abstract: Due to the high cable ratio of city grid,the harmonic pollution is aggravated. For the buses with high harmonic voltage content,it is necessary to evaluate the harmonic emission level of the utility side and customer side. Most of the existing evaluation methods are based on two assumptions:1)the harmonic ...
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Number of views:4983 Amount of downloads:5032
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GAO Shanxue,YANG Xin,SHEN Wenbing,ZHONG Wei,ZHANG Shuai,WANG Min
Abstract: DC microgrid usually consists of a plurality of power electronic converters with feedback controlconnected to a common DC bus. Although the control loop design of each individual converter has a good stabilitymargin,the interconnection of multiple power and load converters can cause stability and performan...
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Number of views:3181 Amount of downloads:5024
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DU Jifei,WANG Yang,WANG Li,LIU Haoruo,MU Yunfei,SUN Qiang
Abstract:The primary side feedback can stabilize the output voltage,and improve the service life of theequipment without using the secondary winding detection error signal. The topology of active filter and theimproved method of primary side feedback were adopted. The performance of active EMI filter topologies wasa...
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Number of views:1626 Amount of downloads:5018
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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:2386 Amount of downloads:5013
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WANG Wenguang,QIU Shuming,BAI Yang,GAO Pengcheng,YU Shipeng
Abstract: Taking the steel rolling system improvement as an example,the design of 12-pulse parallel electriccontrol system of SIEMENS SINAMICS DCM 6RA80 in the steel rolling system was described in detail,as well asthe calculation and selection of main components,such as rectifier transformer,rectifier device and sm...
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Number of views:2812 Amount of downloads:5006
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TIAN Kai,YUAN Yuan,YU Zhibin,JIANG Yida,LI Nan,SONG Peng
Abstract: Three-level neutral-point balance method based on PWM pulse width dynamic regulation wasproposed to realize optimized PWM high-performance closed-loop control and three-level neutral-point balancecontrol of the inverter at low switching frequency. The fundamental current component was extracted from thecur...
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Number of views:3453 Amount of downloads:5005
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FANG Qiang,CHENG Zhijiang,YANG Handi
Abstract: For the problem of uneven power output and unbalanced state of charge(SOC)of energy storageunits caused by large-scale integration of distributed generation systems(DGS),such as photovoltaic and windturbine,into the grid,an improved consistency algorithm based on gradient compensation was proposed based on...
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Number of views:1897 Amount of downloads:4996
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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:1483 Amount of downloads:4994
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LIANG Zhen,WANG Yong,BAI Haibin,ZHANG Zhiyu,SUN Qianhao,CUI Bin
Abstract: Based on full-bridge(FB)and half-bridge(HB)sub-modules(SMs),the conventional hybridmodular multievel converter(MMC)is a typical topology of MMC with DC fault clearing ability. However,theproportion of FB SMs in conventional hybrid MMC is usually greater than 50%,so as to increase the cost andlosses. To sol...
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Number of views:1709 Amount of downloads:4992
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HUANG Jialing,LIN Shunfu,ZHAN Yinfeng,LIU Chitao,LI Dongdong
Abstract: Aiming to the non-intrusive load monitoring(NILM)of residential households,a method of loadprofile decomposition based on the appliance switching events and the long short-term memory networks(LSTM)was proposed. The difference-summation algorithm was performed on the total active power data of a residentia...
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Number of views:3391 Amount of downloads:4992
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WANG Yuhao,LIU Haitao,ZHU Kangkai,ZHONG Cong,MA Jiayi
Abstract:With the increased penetration rate of new energy year by year,it is difficult to accurately predictthe randomness and fluctuation characteristics of its output,causing a severe challenge to the operation,planningand scheduling of electrical power system. Therefore,modeling for the uncertainty of new energy...
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Number of views:1934 Amount of downloads:4987