-
DENG Guimei,ZHANG Yue,HE Yongpeng,ZHAO Haixu,YU Hongze
Abstract:In order to study the operating characteristics of onboard power net of high-speed maglev train,anautomated networking test system based on LabVIEW was developed on the basis of several independent onboardpower net test systems. Through the comprehensive simulation of the external power supply of the train,...
更多
Number of views:200 Amount of downloads:187
-
SI Dajun,WANG Jie,SHU Banggui,ZHANG Guangbin,SHU Hongchun
Abstract:The load of a submerged arc furnace has many advantages,such as large single-unit regulationcapacity,good communication conditions,easy control,and low economic retrofitting,making it an importantflexible regulation resource for the power grid. However,there is currently a lack of effective digital simulati...
更多
Number of views:136 Amount of downloads:184
-
YAN Kun,GAN Jingfu,LIU Hongshun,SUI Yizhen,HE Pengkang
Abstract:A fusion prediction method was proposed to predict and correct the calculation deviation of the toptransformer oil temperature model in IEEE guideline,so as to realize the more precise prediction of the transformertop oil temperature(TOT). Firstly,the characteristics of the transformer TOT model and the ext...
更多
Number of views:177 Amount of downloads:184
-
QIU Shuming,ZHAO Bin,CHEN Kuilin,CHEN Zhibin,LI Chao
Abstract:An anti-interference domestic variable frequency multi-drive system solution for the five-standcontinuous cold rolling line in the steel strip cold rolling field was presented. Firstly,the mechanical equipmentand rolling process of the 900 mm five-stand continuous rolling line was introduced,and matched the...
更多
Number of views:172 Amount of downloads:177
-
XIONG Wei,CHEN Long,LÜ Shunli,GUO Zhenyu,LU Xin
Abstract:To address the complexities of transformer condition assessment indicators and the overreliance onexpert judgment in the evaluation process,a novel method for fuzzy comprehensive assessment of transformercondition was introduced,which is based on gaming theory and an improved version of the D-S evidence the...
更多
Number of views:159 Amount of downloads:176
-
FAN Peilin,HU Pengtao,XUE Jianli,LIU Zheng,HUANG Jinming
Abstract:Voltage source converter (VSC) is prone to low-frequency oscillations of 100~101Hz whenconnected to weak AC power grids. The mechanism of improving the control strategy of VSC on the traditionalinverter side to suppress low-frequency oscillations(LFO)in the AC power grid is to transfer the oscillations from...
更多
Number of views:145 Amount of downloads:172
-
YANG Zhaohui,WEI Huadong,HE Liuqing,ZHANG Hao,PENG Guoping,SHI Ben
Abstract:Aiming at the problem of large switching loss of modular multilevel converter(MMC),startingfrom the switching frequency optimization strategy,the existing switching frequency optimization strategy wasimproved,and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
更多
Number of views:143 Amount of downloads:170
-
MA Zun,CHEN Haoying,DENG Can,CHEN Yong,GUAN Lin
Abstract:The development of modern power systems with wide span,low inertia,and complex structuremakes the frequency stability problem increasingly prominent,and the spatial-temporal distribution characteristicsof frequency are distinct. Taking the actual power grid as the object,the impacts of large-scale new energ...
更多
Number of views:188 Amount of downloads:166
-
GENG Likai,HOU Juan,ZHANG Chunxiang,HU Wenying,LI Wenhua,LI Cuijuan
Abstract:Thermal and magnetic protection circuit breakers provided short circuit protection by instantaneoustripping devices. In the magnetic field formed by the coil with current,the moving armature and stationary coreovercomed the spring force and engage under the influence of electromagnetic force,thereby pushing...
更多
Number of views:222 Amount of downloads:166
-
GE Yaming,ZHOU Chenbin,MENG Yihua,SHEN Jiaoxiao,CAO Haiou,REN Xuchao
Abstract:With the accelerated construction of new power systems,the scale and complexity of transmissionsystems are constantly increasing. Therefore,it is urgent to study transmission line fault diagnosis algorithms thatutilize multi-source data as driving sources and meet requirements for accuracy and low time cons...
更多
Number of views:204 Amount of downloads:164
-
SUN Mengen,GONG Haiming,ZHAO Jie,SUN Rongrong,LU Huiwen,WANG Hui
Abstract:Accurate topology and line parameter information is the basis of state estimation and securitycontrol of distribution network. Affected by the performance of collection terminals and environmental factors,themeasurement error of metering equipment often deviates from Gaussian distribution. Higher requiremen...
更多
Number of views:137 Amount of downloads:163
-
ZHAO Yifu,ZHANG Guangbin
Abstract:In response to the existing problems of traditional diode based clamp type wind turbine inverters,ahybrid clamp type structure was introduced. Based on the analysis of its working principle,a method for switchingthe switch state and a vector optimization selection method that can avoid modulation waveform b...
更多
Number of views:163 Amount of downloads:162
-
LI Hongqiang,WEI Yawei,MA Jing,ZHOU Lei,ZHANG Hanhua ,LU Guangming
Abstract:Under the large-scale renewable energy integrated with uncertain output characteristics,balancingthe supply and demand within a local area becomes a new challenge. The long-distance transmission andconsumption scheme is utilized for the sending-end grid to meet the requirements of renewable energy consumpti...
更多
Number of views:147 Amount of downloads:161
-
WANG Yi,JIA Hongbo,WANG Cong,ZHANG Lihui,YANG Minghao,LI Baohui
Abstract:It is an important means to improve the anti-G ability of pilots to simulate the flight G-loadcharacteristics of aircraft in full envelop flight on the ground through centrifuge. With the great improvement ofmaneuvering performance of manned aircraft,it is extremely difficult to accurately analyze its fligh...
更多
Number of views:166 Amount of downloads:159
-
LUO Meiling,HAN Zhongxiu,YU Xiaojun,WU Jianyun,HUANG Weibing
Abstract:The islanding detection method is a necessary method for grid-connected PV systems,but,thecurrent islanding detection method is prone to misjudgement when encountering grid operation states such as highresistance short-circuit ground faults and large-capacity load casting. For this reason,an islanding detec...
更多
Number of views:138 Amount of downloads:153