-
DU Yiming,CHENG Zhijiang,LI Zhiwen
Abstract: In order to realize the high-precision trajectory tracking control of four-wheel skid-steering mobilerobot(SSMR),under slip and external disturbance,an auto-disturbance tracking controller based on double closedloop rail structure was designed,and its stability was proved. First of all,in order to solve the...
更多
Number of views:1134 Amount of downloads:993
-
YAO Yan,GAO Feilin,ZHOU Ziwang
Abstract: Aiming at the problems of increased network loss and node voltage deviation of the traditionaldistribution network after the distributed generations(DGs)is connected to the network,an optimization strategythat takes into account the reactive power output of DGs grid-connected inverter was proposed. Firstly...
更多
Number of views:1128 Amount of downloads:871
-
PENGTao
Abstract: The local leakage signal of high-voltage insulation equipment is weak and its characteristics are notobvious,which can only explain whether there is discharge. There is a phenomenon of missing judgment andmisjudgment in the actual positioning process,which is difficult to accurately locate the high-voltage...
更多
Number of views:1126 Amount of downloads:741
-
WANG Jiarong,DAI Guanghua,HU Liang,GAO Jingxiang
Abstract: In order to realize the application requirements of SiC power devices,a novel dual edge-triggeredisolated drive circuit was proposed. The circuit have the advantages of full isolation of driving signals,strongdriving ability,wide switching frequency range with 0 Hz~500 kHz signal transmission and strong of...
更多
Number of views:1122 Amount of downloads:1072
-
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:1115 Amount of downloads:1155
-
FAN Enze,LI Yaohua,GE Qiongxuan,ZHAO Lu
Abstract:Under digital control,the inner current loop of the LC-type inverter is affected by the control delay,which leads to the weakening of its active damping effect. Increasing the sampling control frequency can effectivelyreduce the negative influence of digital control delay. Furthermore,in order to suppress t...
更多
Number of views:1113 Amount of downloads:813
-
LIU Lingshun,LI Yongheng,YAN Hongguang
Abstract: A nine-switch converter space vector pulse width modulation(SVPWM)algorithm was proposedbased on the dual Y shift 30° permanent magnet synchronous motor(PMSM)voltage vector. Compared with thebiggest four vectors of the twelve-switch converter SVPWM algorithm,the proposed algorithm not only reducesthree swi...
更多
Number of views:1111 Amount of downloads:898
-
JIANG Jingwen,ZHOU Jiemin,HONG Feng,ZHENG Gang
Abstract: On the basis of LLC,considering from the perspectives of soft-switching technology,DC/DCcascade converter technology and three-level technology,a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification,whichpro...
更多
Number of views:1108 Amount of downloads:841
-
LIU Fang,XU Yunyu,HE Guoqing,LI Guanghui,LIU Shiquan,LIU Wei
Abstract: With the increasing permeability of distributed generation,the grid becomes weaker and weaker. Itis very important to help the system achieve low voltage ride through(LVRT)when the grid voltage drops underweak grid. Aiming at a series of problems such as over-current,voltage collapse and system oscillation...
更多
Number of views:1104 Amount of downloads:940
-
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...
更多
Number of views:1103 Amount of downloads:1059
-
PENG Daogang,GAO Yimin,QI Erjiang,ZHOU Yang,WANG Yongkun
Abstract: Oil spills from thermal power plants can pollute the drainage outlet,if not dealt with in time,it willalso pollute the river environment. Drainage outlet monitoring is from the angle of depression,therefore it is hard to identify accurately with the rectangular detection frame. Based on the image from the ...
更多
Number of views:1102 Amount of downloads:1239
-
TAO Li,YANG Xiaxi,GU Jinhui,WEI Bingbing,ZHANG Lin,WANG Jianing
Abstract: Virtual power plant(VPP)can integrate distributed energy resource(DER)to participate in theoperation of power market and auxiliary service market,and provide management and auxiliary services fordistribution network and transmission network. Its operation and control have been widely concerned. Aiming at t...
更多
Number of views:1092 Amount of downloads:928
-
WANG Yajing,ZHANG Shuai,JIANG Han,SONG Hongliang
Abstract: In order to improve the carrying capacity and resilience margin of the distribution network systemcontaining microgrid,a topological resilience optimization model of the distribution network system containingmicrogrid was established to achieve the resilience optimization objective of the distribution netw...
更多
Number of views:1092 Amount of downloads:896
-
WU Zhiheng,LIU Aimin
Abstract: The motor actuator used in circuit breaker has the advantages of simple structure,small dispersal ofaction and strong controllability,which provides the possibility for the switch contact of circuit breaker to followthe preset reference curve. The traditional control method can not adjust the parameters ac...
更多
Number of views:1089 Amount of downloads:782
-
NIU Zongxian,FAN Bo,FU Yulin,WANG Chunguang,WU Xiaodan,YANG Chenhui
Abstract: Under traditional PI parallel control strategies,synchronous control systems of multi-motor rigidconnection structure have the problem of unbalanced motor torque output,and there is even a serious risk of shaftbreakage. Taking the rigid connection structure of multi-motor gear transmission as the research ...
更多
Number of views:1089 Amount of downloads:859