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LI Junjun，LI Zhongqi，YI Jiliang
Abstract: Shared inverter can simplify the topology of the dual machines drive system under the traditional axiscontrol mode，reduce the volume and weight of the equipment. In view of the low voltage utilization rate of a single motor in the shared inverter drive system，which leads to the shortening of the constant p...
更多Number of views：1789 Amount of downloads：1119
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WANG Chao，CAO Wei，ZHANG Xuhang，QIU Chunfeng，CHEN Wei，LI Yun
Abstract：Based on the low-speed communication network，a multi-energy storage operation method of DCmicrogrid with improved power droop control was proposed so as to realize the balanced control in three aspects：state of charge（SOC）balance，rational power distribution among energy storage units and stable bus voltage....
更多Number of views：1784 Amount of downloads：1069
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LI Lingxin，JIAO Yuping，SUN Jiacheng，DENG Fujin，ZHANG Qi，REN Biying
Abstract: High voltage converter is often used in high voltage direct current（HVDC）transmission system tocontrol power supply nearby at high potential. However，the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem，a hig...
更多Number of views：1777 Amount of downloads：1226
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TANG Weifeng，WANG Changjiang
Abstract: In the motor controller of new energy vehicles，due to insufficient current capacity，high cost，andlimited heat dissipation capacity，parallel power devices are often used to extend current capability of power inverter for EV applications. Current imbalance can be caused by device parameter tolerances，parasit...
更多Number of views：1771 Amount of downloads：1157
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XUE Yufeng，SU Jianhui，WANG Haining，DU Yan
Abstract: When the input DC voltage is high，considering the limited voltage endurance capability of the powerswitch of the inverter，an input-series and output-parallel（ISOP）inverter topology was adopted，which is composed of two single-phase full-bridge inverter modules. The input DC voltage could be divided equally ...
更多Number of views：1771 Amount of downloads：1294
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FU Yang，SIMA Chao，TIAN Shuxin，CAI Pengcheng，GU Jiping，LIU Shu
Abstract: Expected fault screening of smart distribution network is an important basis for system security situation assessment. In order to comprehensively and accurately perceive the security risk of smart distributionnetwork，a micro-synchronous phasor measurement unit（μPMU）with real-time，synchronicity，accuracy an...
更多Number of views：1752 Amount of downloads：1308
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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...
更多Number of views：1744 Amount of downloads：1445
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TONG Zhan' anxin，SU Jianhui，ZHANG Jian，DU Yan
Abstract: The requirements for wireless charging of automated guided vehicle（AGV）batteries are low voltageand high current，full-wave-synchronous-rectification（FWSR）can improve efficiency and reduce costs. Firstly，AGV wireless charging topology and working principle were introduced in detail. Secondly，aiming at the p...
更多Number of views：1743 Amount of downloads：1192
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DING Qiang，ZHU Jie，JIANG Yingxu
Abstract: Direct-drive electrically excited synchronous motor（EESM）is obtained widespread utilization inwind power generation system due to its advantages of simple construction and low cost. Firstly，a mathematicalmodel of EESM was derived and the direct torque control（DTC）algorithm for EESM was introduced based on ...
更多Number of views：1733 Amount of downloads：1063
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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...
更多Number of views：1723 Amount of downloads：933
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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...
更多Number of views：1717 Amount of downloads：990
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CHEN Guoping，WANG Juan，LIANG Zhen，ZHANG Zhiyu，BAI Haibin，SUN Qianhao
Abstract: The full fault-blocking converter（FFBC）-based DC power distribution network is an importantdirection of the power system with source-load-storage interaction. Since there is no DC breaker in FFBC-DCpower distribution network，the start-up，mode switching and fault handling control strategies of FFBC-DC power...
更多Number of views：1709 Amount of downloads：1249
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ZHANG Wanying，WANG Changjiang，YU Dayang
Abstract: Due to the strong coupling between rotor speed and rotor time constant in the indirect vector controlsystem of induction motor，it is difficult to realize their parallel identification. The parallel identification based onmulti-innovation extended Kalman filter based on forgetting factor（FMI-EKF）was propose...
更多Number of views：1700 Amount of downloads：1106
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LU Heng，LIU Haitao，XIA Tao，ZHANG Chengyu，HUANG Cheng
Abstract:Accurate line parameters are of great significance to the operation and control of the distributionnetwork. However，the line parameters of distribution network are affected by environment，working condition and temperature，etc. At the same time，due to the increasing complexity，randomness and volatility of di...
更多Number of views：1681 Amount of downloads：1159
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LÜ Feichun，HU Jingtao，ZHANG Wentao，HU Dong，WU Xu
Abstract: In recent years，the large-scale grid connected operation of distributed energy has led to the gradualevolution of traditional power users from simple power consumers to prosumers with both power production andconsumption capacity，and can orderly participate in market transactions under the guidance of mark...
更多Number of views：1674 Amount of downloads：1356
