-
WANG Yingjie，ZHOU Hailan，CHEN Yongfa，BAI Feiying
Abstract：When the switching frequency of the four-quadrant rectifiers in different multiple units deviates，thecurrent will experience low-frequency oscillation，which is not conducive to the operation of the traction powergrid. Therefore，a matrix small-signal modeling method for SPWM comparators was proposed to analy...
更多Number of views：2354 Amount of downloads：10213
-
HU Yujie，ZHU Shenglong，WU Shaolei，FENG Yu，WANG Ming，LOU Wei
Abstract：The flexible DC interconnection of medium and low voltage can improve the flexibility andreliability of the distribution network，and the dual active bridge converter is a key link in achieving voltageconversion and electrical isolation in flexible interconnection equipment.The current source resonant dual a...
更多Number of views：2346 Amount of downloads：6091
-
HU Qingjun，CAO Xinhui，FENG Yu，ZHU Lipeng，ZHAO Wenjing，WEI Yushan
Abstract: The process automation control system L2 of an aluminum zinc plating production line wasexplored. In response to potential production faults on the production line，a process data control module of theprocess automation control system was provided. Through the analysis of process data，the fault location of ...
更多Number of views：2345 Amount of downloads：10617
-
GONG Yanchao，YANG Haiyun，MIAO Junjie，GAO Zhi
Abstract: Parallel capacitor banks can effectively improve the efficiency and quality of power transmission inthe application process of power distribution network. However，due to some unreasonable factors in the switchingmode of power capacitors，it will also generate overvoltage，thus affecting the power grid. stabi...
更多Number of views：2344 Amount of downloads：6350
-
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...
更多Number of views：2339 Amount of downloads：6173
-
ZENG Jiang，XIONG Taojun，XIE Baoping，ZHAO Benqiang，MA Haijie
Abstract: Aiming at the deficiency that the traditional active power filter（APF）can only control the localharmonic source，a harmonic active defense system（HADS）based on virtual harmonic resistance was proposed.The principle of harnessing harmonics in distribution network by HADS was analyzed，the HADS simulationmodel...
更多Number of views：2339 Amount of downloads：6303
-
CHEN Xiaoru，HUANG Longyi，YANG Mingjia，LAI Shengjie，CHI Zibin，XIA Chengjun
Abstract：In view of the lack of flexibility in the input and exit of the current metal sheath loop suppressiondevice for high voltage cables，the problems such as excessive induced voltage of the sheath and excessive powerloss were not considered when determining the suppression impedance value，a loop suppression dev...
更多Number of views：2337 Amount of downloads：9641
-
JI Liang，XU Jun，GUAN Ya，CUI Jingxia，HE Jie，PAN Yihang
Abstract：The three-core underground cable in the distribution network works in a harsh environment. Due tothe influence of aging，external force，high temperature and humidity，the insulation of long-term live operation iseasily damaged and causes faults. Aiming at the single-phase grounding fault of cable in distribut...
更多Number of views：2336 Amount of downloads：8706
-
YANG Fan，WANG Huanmin
Abstract：With the development of power electronics technology，microgrid type energy storage inverters withvirtual synchronous generator（VSG）function have also been widely used. In VSG technology，due to the presenceof inertial frequency regulation loop and voltage regulation loop，the inverter can realize the grid fre...
更多Number of views：2334 Amount of downloads：6696
-
SHU Jun，YE Fan，YAO Fenglin
Abstract：The power cable plays a very important role in today's social development and urban operation.With the increase of people's electricity consumption，the amount of cable laying is also increasing synchronously.In order to prevent the cable from being damaged，the environmental vibration signals around ...
更多Number of views：2332 Amount of downloads：9944
-
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...
更多Number of views：2328 Amount of downloads：7186
-
LI Shengnan，HE Tingyi，HE Xin，HE Peng，ZHANG Yongchang，ZHANG Shengan
Abstract：During the joint operation of permanent magnet direct drive wind power generation systems，thechanges in motor side parameters may cause problems such as reduce control accuracy and stability on the machineside，which in turn affects the DC bus voltage of the converter，leading to power fluctuations on the gri...
更多Number of views：2318 Amount of downloads：10509
-
WANG Linfeng，XU Nan，NIE Jing，XIE Yantao，SONG Yan
Abstract: Investment estimate prediction model in traditional transmission line（TTL）project has problemssuch as large deviation from the actual cost and low efficiency of estimation management. Thus，a novel investmentestimate prediction model in TTL project was presented with assistance of principal component analys...
更多Number of views：2317 Amount of downloads：6571
-
WU Jiawei
Abstract：Electrically assisted manufacturing（EAM）is a promising and rapidly developing metal processingmethod.The power supply is a key sub-system for EAM，which needs to be designed properly. the model-baseddesign of a low-voltage high-current pulse power supply used for EAM was proposed based on converter-levelelec...
更多Number of views：2311 Amount of downloads：5706
-
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...
更多Number of views：2307 Amount of downloads：5127
