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SU Jichen
Abstract: Due to the low efficiency of data processing and high export delay of intelligent measurementequipment in substation engineering,the construction progress of substation engineering is slow. Therefore,the data batch export system of intelligent measurement equipment in substation engineering was designed. T...
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Number of views:3431 Amount of downloads:1484
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XU Qiongguo,ZHANG Weitao,LIU Guangwei,ZHOU Bin
Abstract: Independent DC microgrid with distributed power supply and energy storage system plays animportant role in improving power supply reliability. The energy scheduling optimization of DC microgrid underdifferent operating modes was discussed,including diesel generator,fuel cell,micro gas turbine,photovoltaic,...
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Number of views:2929 Amount of downloads:1477
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PAN Ling,FENG Qian,ZHANG Peng,SHEN Bing,ZHOU Jian,CHEN Ran,ZHAO Jinshuai
Abstract: Due to the high cable ratio of city grid,the harmonic pollution is aggravated. For the buses with high harmonic voltage content,it is necessary to evaluate the harmonic emission level of the utility side and customer side. Most of the existing evaluation methods are based on two assumptions:1)the harmonic ...
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Number of views:3724 Amount of downloads:1477
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LI Xuhui,XIE Baihuang,HUANG Xiaoyong,XUYan
Abstract: The collector line short-circuit fault is one of the most common faults for the grid-connected doublyfed wind farms. Because the introduction of the crowbar discharge resistor,after the unsymmetrical faults of the collector line,the positive and negative sequence impedances of DFIG will produce the differe...
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Number of views:3582 Amount of downloads:1473
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LIU Xiaodong,SUN Lunan,LIU Yawei,GUAN Peng,RONG Xifeng
Abstract: In order to meet the needs of the testing laboratory's task scheduling and process design functions,the new applications were developed based on the existing laboratory information management system,such asscheduling system and process designer. According to the type and priority of the test task,the t...
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Number of views:3663 Amount of downloads:1469
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DENG Dawei,LIU Peilin,ZHUWen,HE Chaolin,XIAWei
Abstract: In order to improve the substation dispatching and the adaptive control ability,an optimizationmethod for consistency test of substation dispatching center single line diagram modulus diagram based on theanalysis of equivalent inertia characteristics was proposed. The power control parameters of the substa...
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Number of views:3439 Amount of downloads:1468
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MA Zhousheng,YAO Yang
Abstract: A novel DC current-voltage droop control method was proposed for a hybrid high-voltage directcurrent(HVDC)system composed of a voltage source converter(VSC)and a line-commutated converter(LCC).The DC voltage droop control was used to reduce AC voltage fluctuation on the inverter side,so as to achieve thego...
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Number of views:3510 Amount of downloads:1463
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ZHOU Xuesong,XIE Bingjie,MAYoujie,LIU Qian
Abstract: To effectively solve the problem of stable control for DC-bus voltage in the independent photovoltaicenergy storage system under multi-source disturbances,a bidirectional DC-DC converter control scheme based onimproved linear active disturbance rejection control(LADRC)was proposed. The linearized small sig...
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Number of views:3222 Amount of downloads:1461
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SUN Chuanjie,TIAN Kai,YANG Jingran,CHU Zilin,MA Jie
Abstract: A high-power high-frequency power supply was designed for test requirements of some specialelectrical equipment. In the power supply,cascaded H-bridge was adopted to form five-level topology structure,the integrated modulation method was adopted,including bipolar PWM modulation,carrier phase-shifted SPWMmo...
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Number of views:2769 Amount of downloads:1460
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HUANG Haihong,HUANG Yuwei,LIU Xin
Abstract: Aiming at the requirements of portable DC insulation detection devices,a dynamic differencealgorithm based on single-arm was proposed,and a portable DC insulation detection and verification integratedmachine was designed based on this algorithm. The principle of the single-arm insulation monitoring system ...
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Number of views:2501 Amount of downloads:1455
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XU Rui,PAN Sanbo
Abstract: Aiming at the problem that the application of multi-step model predictive control(MPC)to invertercontrol results in a doubling of the number of solutions to lead to computational difficulties,an MPC strategy basedon the improved spherical decoding algorithm was introduced. In the control strategy,the optim...
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Number of views:3813 Amount of downloads:1449
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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:1743 Amount of downloads:1444
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YAN Yuhao,ZHOU Buxiang,CHEN Shi,DONG Shen,LIU Zhifan,ZANG Tianlei
Abstract: At present,the focus of research on doubly fed induction generator(DFIG)high voltage ride through is a single high voltage fault.However,after DFIG low voltage ride through,due to the irrationality of the reactive power compensation strategy,a low/high voltage compound fault have be caused,which have a cer...
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Number of views:2848 Amount of downloads:1443
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ZHANG Tingting,ZHAO Jinbin,DENG Ping,QU Keqing,ZHANG Junwei
Abstract: Aiming at the problems of low input voltage and high demand on driving voltage frequency andamplitude of the traffic sign power supply using smart electroluminescent(S.E.L)technology,a high rise ratio highfrequency inverter drive circuit based on the cascade connection of the Boost circuit with soft switch...
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Number of views:3361 Amount of downloads:1437
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HAN Jianfu,XIAO Chun,SONG Xiaobing,LU Jiansheng,WANG Feifei
Abstract: With the continuous advancement of China's energy Internet strategy,how to reduce the occurrenceof electricity theft has become a focus of research. The historical data of electricity consumption was processed andanalyzed,and the data of electricity consumption were processed and converted to realize t...
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Number of views:3074 Amount of downloads:1435