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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:2485 Amount of downloads:3342
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ZHAN Chengkang,LI Xiaolu,LU Yiming,LIU Riliang,LI Congli
Abstract: With the access of large-scale distributed energy resources in active distribution network,thetraditional centralized control architecture system will not effectively deal with a large number of distributed unit,so it is necessary to study the optimal scheduling of distributed resource cluster in active di...
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Number of views:2433 Amount of downloads:3180
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SUN Kaiwen,GONG Shihua,CAI Junqiong
Abstract: Gantry is an important part of proton radiotherapy equipment. Its main features are its large mass,large size and large moment of inertia. It is necessary to ensure the smooth acceleration and deceleration and precise positioning of the gantry. In response to the positioning control requirements of the gan...
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Number of views:2411 Amount of downloads:3628
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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:2395 Amount of downloads:2259
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SHI Liguo,LI Yanzhen,LI Yuanfu,GUAN Xuelin,XU Zhigen,ZHANG Mingyuan
Abstract:Three-level neutral-point-clamped(3L-NPC)interconnected converters have been widely used inthe AC-DC hybrid distribution grids due to their superiorities of large capacity and high power quality. However,their working conditions are always with high power,varying load,and limited heat dissipation,etc.,with ...
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Number of views:2350 Amount of downloads:3811
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CHEN Wanqing,CHEN Keren,SHI Pengjia,JIN Xiaolong,WANG Huiyuan
Abstract: To reduce the energy cost and carbon emissions due to the large-scale farming,an optimal scheduling method for integrated energy systems(IES)in low-carbon farm considering thermal dynamic characteristics of the livestock houses was proposed. First,the mathematical models of the integrated energy systems in...
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Number of views:2338 Amount of downloads:2670
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LI Jiangcheng,CHEN Xiaohua,LI Haitao,ZHU Zhixu
Abstract: Because the current method does not optimize the control parameters of flexible AC transmissiondevice,resulting in unsatisfactory control results,control delay and loss rise,a flexible AC transmission devicecontrol method based on multi-objective optimization was proposed. The basic working principle of fl...
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Number of views:2330 Amount of downloads:2825
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TIAN Kai,LI Fengsheng,CHU Zilin,YU Zhibin,LI Teng,WANG Mingyue
Abstract: Aiming at the short circuit fault protection of medium voltage three-level converter with IGCT asthe core and the monitoring of changes in main circuit device parameters during operation,a method was proposed to simultaneously realize fault identification of IGCT three-level converter and monitoring of mai...
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Number of views:2297 Amount of downloads:4089
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XU Hongkuan,LIN Shunfu,BIAN Xiaoyan,LI Dongdong
Abstract: With the reform of the electric marketization,it is of great and far-reaching significance for theconstruction of the electricity market to analyze clearly the credit evaluation problems of power users as the mainmarket. Aiming at the problem of power user credit evaluation,a comprehensive evaluation metho...
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Number of views:2284 Amount of downloads:2667
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REN Xuan,CHEN Tong,DONG Lizhi,HUANG Lingtong,ZHANG Mingxia
Abstract:When a large number of energy storage devices are integrated into the power grid through a virtualsynchronous generator(VSG),improper selection of control parameters in traditional fixed inertia and dampingcontrol strategies can lead to long adjustment times or large overshoot,and fail to fully leverage the...
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Number of views:2265 Amount of downloads:3558
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DONG Yi,ZHOU Yufei,LIU Shuai,WANG Yingying
Abstract: The coupling coefficient of the loosely coupled transformer in the inductively coupled wirelesspower transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energytransmission system. To improve the coupling coefficient,an equivalent magnetic circuit model was establ...
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Number of views:2224 Amount of downloads:2714
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:2217 Amount of downloads:2847
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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:2215 Amount of downloads:2472
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JIAO Xiaofeng,WEI Chao,HU Hongbin,FAN Zeguo,ZHANG Lihui
Abstract: With the acceleration of my country' s power spot market construction process,in order to solve theproblem of heat-electricity mismatch in the northern region,two different day-ahead scheduling strategies of aflexible co-generation plant based on the participation of cogeneration units in the day-ahead...
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Number of views:2204 Amount of downloads:2673
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LAI Yongbo,LU Jun,LI Huarong
Abstract: To deal with the mould quantitative casting over-pouring and spillage,based on the analysis of thetechnological process and the control characteristics for a kind of auto molten bucket casting mechanism,under the condition without depending on system concrete models,a three stages casting was proposed to r...
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Number of views:2199 Amount of downloads:4707