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CUI Peng,YU Haisheng,MENG Xiangxiang,WANG Jiankun,SUN Yifei
Abstract:A backstepping error port-controlled Hamiltonian(EPH)controller based on a novel extended stateobserver(ESO)was designed to address the issues of insufficient rotor flux observation accuracy and slow systemdynamic response in induction motor speed control. Firstly,an extended state observer was used to obse...
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Number of views:1338 Amount of downloads:3660
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WANG Wenguang,QIU Shuming,BAI Yang,GAO Pengcheng,YU Shipeng
Abstract: Taking the steel rolling system improvement as an example,the design of 12-pulse parallel electriccontrol system of SIEMENS SINAMICS DCM 6RA80 in the steel rolling system was described in detail,as well asthe calculation and selection of main components,such as rectifier transformer,rectifier device and sm...
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Number of views:2543 Amount of downloads:3659
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WANG Shijun,HAO Quan,LI Wenlong
Abstract: In view of the problems of unstable operation waveforms,high output current stress andinstantaneous fluctuation difference of load in the current sharing control of two-way DC-DC converter in flexiblesubstation,a method of independent current sharing control of two-way DC-DC converter in flexible substatio...
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Number of views:3604 Amount of downloads:3658
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HE Kuiyuan,YU Jiangtao,ZHU Qi,CAI Hui,GUO Qian,WEI Dong
Abstract:Aiming at the adverse effects of large-scale electric vehicle charging load on the distributionnetwork,based on vehicle to grid(V2G)technology,a V2G reactive dispatching strategy combining the nondominated sorting genetic algorithm and the local optimization of global objectives algorithm was proposed. The ...
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Number of views:1415 Amount of downloads:3655
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WU Tong,LI Jian,LI Guodong,LIU Lu,ZHU Liguo,FENG Minshan
Abstract: There are many elderly people with limb disorder in China,and exercise rehabilitation technology isan effective means of rehabilitation treatment. However,the serious imbalance of doctor-patient ratio makes itdifficult for everyone to enjoy rehabilitation medical services. Impedance control technology is u...
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Number of views:1534 Amount of downloads:3654
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TIAN Kai,WANG Ziman,CHU Zilin,YU Zhibin,YUAN Yuan,SONG Peng
Abstract: A method to extract the equivalent thermal resistance parameters of double-sided water-cooledheatsink was proposed. Based on this method,the real-time calculation of junction temperature and overtemperature protection of integrated gate commutation transistor(IGCT)power device were implemented by the water...
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Number of views:4080 Amount of downloads:3631
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HUANG Heyao,WANG Luyang,WU Jiaming,BAI Yang,DING Quan,BAI Hongshan
Abstract: Virtual synchronous generator technology can provide virtual inertia for the frequency stability ofmicrogrid,but there are a lot of asymmetric loads in the operation of microgrid. In order to compensate theunbalanced load and output three-phase symmetrical voltage and current,an improved control strategy b...
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Number of views:3949 Amount of downloads:3630
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MA Xiaoliang
Abstract: Several problems and their solutions for industrial speed regulation applications of four kinds ofcommonly used AC- DC-AC voltage source converter were introduced. Aiming at the problems of high dU/dt, shaftcurrent and power device thermal fatigue related quantitative data were given. Three kinds of rectifi...
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Number of views:6431 Amount of downloads:3629
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LIU Dong
Abstract: Focus on the stator winding insulation and voltage oscillation of variable frequency motor,thetransition process of the pulse voltage output by the frequency converter in the transmission path of stator windings,frequency conversion cables,reactors,etc was analyzed,the voltage equivalent mathematical model...
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Number of views:1627 Amount of downloads:3624
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LIU Chunhui,ZHANG Zheng,FAN Hongzhen,MOU Huilong,HUANG Cunkuan,YUAN Fang
Abstract: Multi-energy complementary generation operation had become a new direction to improve theefficiency of new energy utilization,and it is particularly important to analyze the characteristics of multi-energycomplementary generation. According to the operation characteristics of multi-energy complementary gen...
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Number of views:4435 Amount of downloads:3623
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ZHAO Kuanxiang,YOU Jiawei,LIU Hongxun,LING Yuesheng,TIAN Rui
Abstract: The electrolytic capacitor is used as the energy storage element in the traditional LED power supply.The life of electrolytic capacitor is short which limits the life of LED power supply. In order to improve the servicelife of the power supply,a single-stage low switch stress structure was proposed on the ...
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Number of views:4428 Amount of downloads:3618
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REN Hao,QIU Xiaoyan,ZHANG Zhirong,SUN Xu,ZHANG Mingke
Abstract: With the development of electric vehicle(EV),there are a large number of EV charging load in thepower grid. Because of its unique advantages,AC/DC microgrid is more convenient for the access of AC slowcharging pile and DC fast charging pile. However,large-scale EVs integration will bring impact to the powe...
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Number of views:4393 Amount of downloads:3611
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GAO Shanxue,YANG Xin,SHEN Wenbing,ZHONG Wei,ZHANG Shuai,WANG Min
Abstract: DC microgrid usually consists of a plurality of power electronic converters with feedback controlconnected to a common DC bus. Although the control loop design of each individual converter has a good stabilitymargin,the interconnection of multiple power and load converters can cause stability and performan...
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Number of views:2845 Amount of downloads:3598
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YIN Aihui,REN Ang,WU Xiaowen,HOU Jianfeng,FAN Yulin
Abstract: When fast voltage control is used in a power factor corrector(PFC),ripples on the DC side can cause grid current harmonics. To solve this problem,a novel DC voltage nonlinear PI control strategy was proposed,which could reduce the harmonic content of fast voltage closed-loop in power factor corrector. Base...
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Number of views:4652 Amount of downloads:3598
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LU Shanshan,LI Li,LI Lin,SUN Haibo,WU Runze
Abstract:In recent years,the large-scale access of a large number of new power distribution services such asdistributed power generation,electric vehicles,and flexible load control has led to a sharp increase in the operating pressure of the power cloud master station. To this end,an adaptive resource allocation met...
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Number of views:1055 Amount of downloads:3594