-
YAN Yulin，XIAYankun，LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
更多Number of views：1086 Amount of downloads：936
-
ZHANG Guoqiang，NIU Ben，YANG Hua，WANG Gaolin，XU Dianguo
Abstract: Maximum torque per ampere（MTPA）control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor（PMSM）. In the sensorless drivesystem，the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
更多Number of views：1076 Amount of downloads：1098
-
JIA Pengfei，HE Yongpeng，YANG Jianxin，ZHANG Qing，WU Wenda
Abstract：Industrial communication technology is an effective way to achieve network control of industrialequipment. With the development of Ethernet technology in recent years，a top layer application technology basedon Ethernet，PROFINET has rapidly developed. However，due to the lack of high-speed network interfaces ...
更多Number of views：1068 Amount of downloads：1002
-
LUO Ranjie，LI Qian，GAO Jing，FENG Chongwen，MAMengyuan，GUO Peijian
Abstract：The development status of electric drive systems in the industrial sector and their significance inpromoting green and low-carbon transformation were studied. As a crucial control and energy-saving equipment inthe industrial sector，electric drive systems face numerous challenges posed by unchecked developme...
更多Number of views：1067 Amount of downloads：958
-
HU Dong，HU Jingtao，ZHANG Wentao，LÜ Feichun，WU Xu
Abstract: Photovoltaic（PV）power generation is an important power generation method to achieve the goal ofcarbon neutrality. During the grid connection of PV power generation system，due to the characteristics of inverterand the influence of nonlinear load，high-order harmonics are generated，the power quality of the po...
更多Number of views：1062 Amount of downloads：930
-
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...
更多Number of views：1061 Amount of downloads：754
-
CUI Qian，ZHOU Jiemin，DING Zhengdao，QIN Jina，GAO Yiqing，JIANG Pengchuan
Abstract：In order to solve the problem of overvoltage and overcurrent in the process of load sudden changefor ion thruster screen grid power supply，the phase shift pulse frequency modulation（PS-PFM）was used tostabilize the output voltage of the LLC resonant converter. When the sampling voltage is lower than the lowe...
更多Number of views：1059 Amount of downloads：1879
-
YANG Tianxiang，CHENG Zhijiang，YANG Handi，TIAN Feng
Abstract: Aiming at the demand of intelligent coal mine and exit problem of underground coal mine powernetwork，an energy storage hybrid distribution transformer based on modular multilevel converter（MMC-HDT）was proposed. Firstly，the proposed energy storage MMC-HDT was modeled and four operation modes were givenconsi...
更多Number of views：1059 Amount of downloads：1153
-
SUN Zhenqin，QU Jianhua，ZHANG Zhenzhen，QUAN Xiao，LI Hongbin，TAN Peng
Abstract: In order to improve the measurement accuracy of the position and speed closed-loop of the brushlessDC motor，which is currently used in the attitude control actuator，a new cumulative pulse M/T method wasproposed，based on incremental off-axis magnetic encoder（AS5304A）and TMS570 chip internal integratedenhance...
更多Number of views：1057 Amount of downloads：972
-
TIAN Bin，SUN Quanhui
Abstract: AC/DC switching power supply is the main source of electrical system，its development trend islarge capacity，high power density，high efficiency，low power factor and low harmonic content. However，there are still some common problems with existing digital power supplies，including poor anti-interference abilit...
更多Number of views：1054 Amount of downloads：971
-
FU Chen，FEI Fei，WANG Jianjun，GUO Mingxing，LIN Shunfu，ZHANG Qi
Abstract：Making full use of the regulation of flexible resources can effectively suppress the fluctuation ofrenewable energy generation and ensure the economic and safe operation of power system. An optimal dispatchingmethod for power system considering the flexibility of battery energy storage systems（BESS）and pump...
更多Number of views：1049 Amount of downloads：721
-
GU Jiming，SONG Yunting，LIU Xinyu，ZHU Shaoxuan，LEI Yu，ZHANG Tongzun
Abstract：Under the dual carbon background of AC and DC hybrid power grids have the new feature of"strong HVDC and weak AC system" and power electronization，in order to effectively reduce the risk of largescalepower outages in power grid，it is necessary to build a secure and reliable comprehensive defense system toen...
更多Number of views：1045 Amount of downloads：735
-
TANG Junyi，DING Biwei，YANG Qi
Abstract: The integration of high proportion of wind power intensifies the uncertainty of power systemoperation. The sufficient flexibility is vital for the safe and reliable operation of the power system. An evaluationmethod of power system flexibility considering wind power prediction interval was proposed. First，...
更多Number of views：1045 Amount of downloads：802
-
LÜ Zhengyu，ZHOU Liang
Abstract: In the process of controlling the voltage of active distribution network，there are problems of poorvoltage control effect and low efficiency. A two-stage automatic voltage control method of active distributionnetwork considering load measurement was proposed. Using the probability density function （PDF） cu...
更多Number of views：1043 Amount of downloads：709
-
CHEN Weikang，WANG Haixin，ZHANG Zhiyong，CHEN Zhenyu，SHEN Jie
Abstract：Flux-weakening control technology can effectively broaden the speed range of the permanentmagnet synchronous machine（PMSM），therefore，it is of great significance to the research on the flux-weakening control of permanent magnet synchronous machine. Most of flux-weakening modified the flux-weakening current c...
更多Number of views：1039 Amount of downloads：902
