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GUO Wen,HUANG Zhu,ZHOU Mingzhong,WANG Danxiang
Abstract:The excitation inrush generated when the no-load transformer is closed may appear to causeequipment failure,affect the power quality and lead to line overload and other problems,at this stage,phasecontrolled opening and closing is an effective means of suppressing the inrush,the circuit breaker closingchara...
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Number of views:1541 Amount of downloads:6840
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LI Yajun,HE Shan,HU Bing,XIE Shaohua
Abstract:Aiming at the problems of high investment cost,low efficiency of electrolyzer operation and highfluctuation of power input in the new energy electrolytic water to hydrogen microgrid system,the scenery hydrogen production capacity configuration scheme with the installation cost of microgrid equipment and the...
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Number of views:1541 Amount of downloads:4656
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CAO Dayou,LÜ Junmu,BAI Yansong,LI Guorong,ZHOU Yan
Abstract:In order to reduce the carbon emissions of large ships,photovoltaic(PV)power generationtechnology began to be applied to ship power systems. However,due to the limited capacity,low inertia and largeload difference of the ship power system,the traditional virtual synchronous generator(VSG)control strategy ca...
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Number of views:1540 Amount of downloads:6436
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HAN Song,YU Zhiqiang,WANG Mingyue,YU Hongze,JIA Pengfei
Abstract: Under the background of carbon emission reduction,fully controlled power device IGBT is widelyused in various of converters with its excellent performance,effective and reliable drive circuit is crucial to the safeoperation of IGBT,especially for high-power applications. Aiming at the requirement of flexib...
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Number of views:1540 Amount of downloads:5108
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HUANG Zhaobin,ZHANG Zhijian,LONG Tan,HU Bin,LIU Wenlong,WANG Gaolin
Abstract:When the Vienna rectifier is connected to unbalanced loads operating under light load conditions,the slight power difference causes unbalanced voltage of bipolar DC bus,which increases the voltage stress on theswitching device and DC-link capacitance. To solve the above problems,a DC offset reduction of neu...
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Number of views:1538 Amount of downloads:5045
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ZHOU Jun,XIAO Yuanbing,YAN Huamin,LU Jingjing,XU Tiefeng,ZUO Fanglin
Abstract:In order to improve the power coordination ability among microgrids in the microgrid group,it isnecessary to consider the correlation between renewable energy generation output and the difference in load timedistribution in different regions in the microgrid group planning. A scenario generation method that...
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Number of views:1534 Amount of downloads:5278
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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:1533 Amount of downloads:3369
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LI Zewen,FAN Yuanliang,CHEN Weiming,WANG Shaopeng,LIN Jianli,LI Lingfei
Abstract:In the distribution network of the new power system,due to the access of a large number of newenergy power generation devices,the power supply side output of the distribution network becomes unstable andloses control ability. In order to deal with a series of problems such as the difficulty of photovoltaic ...
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Number of views:1531 Amount of downloads:7027
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WEI Xin,LI Yubo,ZHANG Yun
Abstract:Currently,the optimal modulation strategies for SS resonant networks under different operatingconditions have not been fully explored. Therefore,the optimal modulation strategy of SS resonant network wasinvestigated in low-power situations to improve the transmission efficiency and charging stability of the...
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Number of views:1529 Amount of downloads:7748
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FENG Xiang,YU Yue,LI Cheng,ZHENG Wei,LIU Jianhua
Abstract:The traditional ultra high speed permanent magnet synchronous motor(PMSM)driver uses PWMequivalent sine voltage output,which leads to severe motor heating due to large harmonics,and it cannot be used in situations where the input voltage changes over a large range,such as fuel cells. To reduce the heat gene...
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Number of views:1529 Amount of downloads:4393
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YANG Yidong
Abstract:In the grid load control and planning of distribution network,in order to optimize the grid structureof distribution network,such as line loss,power supply quality and load,a grid load control and planningtechnology based on differential evolution algorithm was proposed. For all kinds of power generation de...
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Number of views:1524 Amount of downloads:4664
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GUO Jiahao,YANG Xiong,FANG Xin,LI Guanfei
Abstract: With the rapid development of primary and secondary fusion equipment,the detection efficiency ofthe traditional primary and secondary equipment testing method is very low,and it is no longer suitable for the new fusion switch equipment testing. In view of this,an integrated testing scheme for primary and s...
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Number of views:1522 Amount of downloads:3320
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XIA Tao,LIU Liang,ZHANG Yangfei,LIU Haitao,MENG Gaojun
Abstract:Aiming at the problem of large output voltage fluctuation and long recovery time of three-phasepulse-width modulation(PWM)rectifiers when the load changes,an improved single-neuron gradient learningcontrol strategy was proposed. Due to the poor adaptability of the traditional PI controller parameters when t...
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Number of views:1521 Amount of downloads:4309
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SUN Tao,WANG Tao
Abstract: The semi-bridgeless dual Boost power factor correction(PFC)circuit can obtain higher conversionefficiency without increasing common mode noise,but the return current of the input AC terminal producesadditional losses on the introduced diodes,which reduces the conversion efficiency. The replacement of diode...
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Number of views:1521 Amount of downloads:4674
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BAI Yansong,LI Guorong,CAO Dayou,ZHOU Yan
Abstract:Owing to the influence of wave fluctuation,the output power of ship photovoltaic(PV)powergeneration system is in the state of fluctuation,which significantly affects the quality of electricity and thereliability of power supply,and the sun-tracking algorithm of the land-based PV system fails to adapt to theo...
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Number of views:1515 Amount of downloads:4814