-
WANG Xuming,LUO Cheng,XIONG Zhi,YANG Kai,XU Zhijie,LI Yinbin
Abstract:In response to the complex working environment of pumped storage energy units,wheredisturbances such as temperature variations are prominent,and considering the insufficient control precision oftraditional vector control for brushless doubly-fed machine(BDFM),a study was conducted on a control strategybased...
更多
Number of views:3231 Amount of downloads:8966
-
SHEN Hangyu,FAN Xiaochao,SHI Ruijing,WANG Weiqing, WANG Haiyun,CHENG Zhijiang
Abstract: In order to solve the problem of heat dissipation in the process of producing hydrogen fromelectrolytic water and generating electricity from fuel cells,an independent photohydrogen fuel cell thermoelectriccombined supply system was designed according to the principle of water cooling heat dissipation betw...
更多
Number of views:3869 Amount of downloads:8966
-
ZHOU Qun,XIA Haogang,CAI Xiyu,LIN Dong,YAN Tiesheng
Abstract:The amplitudes of strong pull-in current and hold-on current passing through the high speedsolenoid valve were regulated accurately by using hysteresis control to realize pulse width modulation of thevoltage of fast solenoid valve,the duty cycle of the current pulse passing through the high speed solenoid v...
更多
Number of views:2080 Amount of downloads:8953
-
WANG Haijun,WANG Lei
Abstract: Aiming at the problem of active power dispatch and control in the grid-connected power system oflarge-scale wind power clusters(WPC)of distributed wind farms,a hierarchical model predictive control(HMPC)strategy based on dynamic power dispatch was proposed. Firstly,the dispatch framework was divided into f...
更多
Number of views:5369 Amount of downloads:8927
-
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...
更多
Number of views:2453 Amount of downloads:8920
-
ZHANG Xuyang,ZHANG Maosong,WANG Xiuqin,CHEN Zhong,WANG Qunjing
Abstract:In view of the problem that the transfer branch of the current high-voltage DC circuit breaker mostlyadopts uncontrollable full-bridge transformer coupling energy supply,which is not conducive to controllable andstable power supply,and low energy utilization,a combined DC circuit breaker energy supply metho...
更多
Number of views:2303 Amount of downloads:8918
-
ZHAO Chencong,XIE Zhouhua,ZHOU Feihang
Abstract:Unbalanced grid voltage will affect the normal grid connection operation of the wind energyconversion system(WECS),resulting in fluctuations in system output power and distortion of output current. Inaddition,in the actual permanent magnet synchronous wind power system,there may be uncertainties in thenetwo...
更多
Number of views:2262 Amount of downloads:8918
-
CAO Wei,DONG Haoyang,LI Yun,WEI Huangli,GAO Shengkai
Abstract: The proportion of distributed photovoltaic connected to the grid is gradually increasing,which bringsa series of problems,it can draw lessons from foreign experience to provide practical reference for solving relevantproblems. As one of the leading countries of energy transformation in Europe,Germany's ex...
更多
Number of views:6134 Amount of downloads:8912
-
LIU Yawei,GUAN Peng,SUN Lunan,WANG Chunhui,WANG Hao
Abstract:The micro-grid solves the problem that the intermittent and fluctuating power generation hasadverse effects on the stable operation of the distribution network when the distributed generation is connected tothe distribution network. In order to meet the economic operation of micro-grid under grid connected ...
更多
Number of views:2054 Amount of downloads:8890
-
ZHANG Di,HUANG Lu,CUI Jing,SONG Zhiwei
Abstract: The AC voltage sensors are used to measure the grid voltage,which brings high hardware cost,difficult installation and low reliability. In order to realize that grid voltage sensors are not necessary,virtual fluxwas introducted to model prediction power control algorithm for cascaded H-bridge rectifier. Th...
更多
Number of views:2363 Amount of downloads:8884
-
YU Zhongan,CHEN Miao,DING Wensu,LIN Shangrong
Abstract: The traveling wave fault location of traditional double-circuit transmission lines are mainly studiedon the model with symmetric parameters. In order to solve the problem of traveling wave fault location of doublecircuit lines on the same tower with asymmetric parameters in engineering practice,a fault loc...
更多
Number of views:3976 Amount of downloads:8878
-
MA Bingtai,LIU Haitao,HAO Sipeng,LU heng,ZHANG Chengyu
Abstract: In photovoltaic and hybrid energy storage system,variational mode decomposition(VMD)iscommonly used to realize the distribution of system residual power,but the number of decomposed modes andsecondary penalty factor value affect the error of power reconstruction directly,and the inertia weight error ofcomm...
更多
Number of views:3018 Amount of downloads:8876
-
LI Fei,YU Kongli,XIE Youlin,YIN Xiaoping,LIU Wei
Abstract:Insulated gate bipolar transistor(IGBT)as an important part of wind power converter,through thehigh frequency switch to achieve efficient conversion of electrical energy,its long-term complex operation will leadto IGBT performance decline,increase the risk of failure and affect the stability of the system. ...
更多
Number of views:1080 Amount of downloads:8858
-
FU Yu,LI Tie
Abstract: The microgrid is essentially an active distribution network,which is a combination of the distributed generation(DG)system and different loads at the distribution network voltage level. By analyzing factors such as safety and reliability,energy conservation and environmental protection in the microgrid,and...
更多
Number of views:5505 Amount of downloads:8857
-
XU Binbin,CHEN Chang,ZHANG Aoyu,WANG Yongqiang
Abstract: In order to study the distribution of magnetic field and temperature field of dry-type transformeriron core more accurately,analyze the influence of different excitation on the magnetic field loss and hot spottemperature rise of dry-type transformer core,firstly,Maxwell was used to calculate the transient ...
更多
Number of views:2020 Amount of downloads:8852