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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...
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Number of views:2914 Amount of downloads:9739
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LIU Zhen,ZHU Zimin,WANG Xiaoyun,NAN Dongliang,DUAN Yu,WU Xiaofang
Abstract:As the penetration of renewable energy in power systems increases,converter-based devices aregradually becoming dominant in the grid. In terms of system frequency stability support,grid-forming converters,which can provide both active inertia support and fast frequency response services,hold great potential...
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Number of views:2904 Amount of downloads:15008
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WEI Jian,CHEN Jingxin,ZHANG Xinyue,QIU Guangjuan,ZHANG Jiawei
Abstract:High-precision power converters are core components of ultra-precision motor motion controlsystems.Their output current harmonic distortion can cause unnecessary positioning fluctuations in ultra-precisionmotors,severely impacting the precision control system.Total harmonic distortion is an important index ...
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Number of views:2903 Amount of downloads:9872
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ZHANG Jinbo,YAN Lei,SHI Jian,HUANG Xiaoyu,YANG Dishan,YAN Tongyu
Abstract: A large number of voltage fluctuations will occur in the grounding process of optical storage DCmicrogrid,which has a bad impact on the stability of microgrid power signal. Due to the poor voltage disturbancesignal capture ability of the present optical storage DC microgrid grounding anti-interference tech...
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Number of views:2898 Amount of downloads:4910
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ZHONG Jie ,YAN Xiaoxia,HU Hua,WANG Zhao,ZHU Bingxu
Abstract:The electrified railways system is a complex system of traction power supply system and traincoupling. In order to ensure the safe operation of trains under complex working conditions,it is necessary toidentify the disturbance of the vehicle-network coupling system in a timely and accurate manner. To solve ...
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Number of views:2897 Amount of downloads:12916
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ZHAO Jingjing,CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high,and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
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Number of views:2889 Amount of downloads:7158
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WU Bing,WANG Jianliang
Abstract:The common-mode equivalent circuit model of the motor is the basis for analyzing the electricerosion of bearings,especially for analyzing the technical problems and experimental phenomena of shaft voltageand shaft current,among which the centralized equivalent model is an important calculation basis for the...
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Number of views:2876 Amount of downloads:9914
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YAN Chengshan,QIU Mingquan,ZHANG Lijun,GUO Qi,WANG Chunlei,JIN Wenxing
Abstract: A voltage stability control strategy for DC microgrid based on muti-group energy storage unitdynamatic regulation was proposed. Due to the volatility of the new energy,and in order to improve the powersupply reliability of the energy storage system,the multi-group energy storage equipped with a certain con...
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Number of views:2868 Amount of downloads:6364
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LONG Zhengyu,WANG Xuhong,FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning,painting,maintenance and other operations,therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency,a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
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Number of views:2865 Amount of downloads:8928
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SUN Lunan,ZHOU Yong,LIU Xiaodong,LIU Yawei,WANG Haoyu
Abstract:Combined with the current software features and the requirements for function expansion of thecurrent test equipment engineering project,a set of test data analysis system was designed. The system includes the functions of remote test data monitoring,historical data playback,test data analysis,data predicti...
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Number of views:2860 Amount of downloads:10692
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PANG Bo,MENG Jing,ZHANG Yang,TA Na,WANG Haibo,DU Jing
Abstract:The accurate identification of hidden danger for power utilization in low-voltage substations plays animportant role in improving the quality of power supply and reducing the risk of accidents.To improve the accuracyof identifying hidden danger in low-voltage substations,a low-voltage user hidden danger for...
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Number of views:2855 Amount of downloads:8906
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WU Zuoping,WANG Hongyan,ZHANG Qianfu,XIE Qing
Abstract:Electricity theft by users is the main cause of non-technical loss of electric energy in power grids,which causes huge economic losses and resource wastage to the power system. Compared with a large number ofusers' normal electricity samples,electricity theft users belong to a minority class of samples,...
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Number of views:2849 Amount of downloads:11132
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WANG Shixin,YU Bo,YUAN Yong,SI Guolei,DAI Jin,CAO Taiqiang
Abstract: Electric valve regulation requires fast response speed,high precision control,no overshoot andstrong anti-interference performance. An active disturbance rejection algorithm based on feedforward compensation was used to control the brushless DC motor(BLDC),and the position error was taken as the input of t...
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Number of views:2826 Amount of downloads:5588
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XU Dacheng ,YIN Chunya ,ZHOU Jiayang ,LI Fengting ,LIU Jiangshan
Abstract:To mitigate the fatigue load generated by wind turbine participation in primary frequency regulation,a primary frequency regulation strategy considering the fatigue load of wind turbine was proposed based on themechanical dynamic response characteristics and control device operation characteristics of wind ...
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Number of views:2797 Amount of downloads:7909
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ZHANG Rui,XIAYan,HUANG Guiping,CHEN Renzhao,YANG Yili
Abstract:Aiming at the poor robustness and system vibration problem of asynchronous motors under thetraditional sliding mode control,a variability coefficient power exponent reaching law(VCPERL)was proposed todynamically change the control coefficients according to the position of the sliding mode surface,and the sl...
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Number of views:2794 Amount of downloads:7786