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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：3208 Amount of downloads：7099
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LIU Juan，HU Xiaolei，TENG Yiyina，ZHANG Shiqi，ZHANG Zhe
Abstract: Hydrogen fuel cells air compressor is an important accessory of hydrogen fuel cell，but the high costcaused by its high energy consumption hinders the further development of hydrogen fuel cell. In recent years，theindustry has gradually adopted variable frequency drives to control the operation of hydrogen f...
更多Number of views：3184 Amount of downloads：10062
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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...
更多Number of views：3177 Amount of downloads：8504
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QIAN Xiao，MA Xiang，LÜ Leiyan，ZHANG Wenjie，WANG Ning，ZHI Yuemei
Abstract: Traditional power grid dispatching alarm algorithm has low alarm instruction operation efficiency，low power grid dispatching failure burst rate and high alarm error alarm rate，so the power grid dispatching alarmassociation rules and decision tree algorithm based on knowledge graph were proposed. The associ...
更多Number of views：3174 Amount of downloads：5673
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ZHANG Guoqiang，NIU Ben，YANG Hua，WANG Gaolin，XU Dianguo
Abstract: Maximum torque per ampere（MTPA）control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor（PMSM）. In the sensorless drivesystem，the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
更多Number of views：3171 Amount of downloads：11271
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LIU Huichen，LI Zhen，SU Weifeng，YUWEN Bo，LI Haitao，ZHANG Zhenbin
Abstract: In the long cable driven induction motor drive systems，speed sensorless control is usually adopteddue to the long distance between the controller and the motor. In addition，long cable increases the stator sideimpedance of the induction motor，especially the equivalent stator resistance by an order of magnit...
更多Number of views：3160 Amount of downloads：9550
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GU Jiming，SONG Yunting，LIU Xinyu，ZHU Shaoxuan，LEI Yu，ZHANG Tongzun
Abstract：Under the dual carbon background of AC and DC hybrid power grids have the new feature of"strong HVDC and weak AC system" and power electronization，in order to effectively reduce the risk of largescalepower outages in power grid，it is necessary to build a secure and reliable comprehensive defense system toen...
更多Number of views：3152 Amount of downloads：9047
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YUAN Minxin，YIN Zhonggang，LUO Peien，ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor（IGBT）of the permanent magnet synchronousmotor（PMSM）drive system，an error current polarity method based on model predictive current control（M...
更多Number of views：3148 Amount of downloads：11243
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XU Changbao，DING Jian，SONG Hongjian，PAN Chengda， SUN Pengbo，WANG Qihua，CHEN Hui
Abstract: An optimization method was proposed to layout electric vehicle charging facilities consideringpower quality constraints. A comprehensive power quality index model considering the average value of nodalthree-phase unbalance degree and the maximum value of nodal voltage deviation was established. Meanwhile，t...
更多Number of views：3142 Amount of downloads：5999
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王德明，李英量，贾俊辉，解晨，王语园
Abstract: The conventional overcurrent protection is ineffective in isolating faults in microgrids due to the lowfault current level contributed by distributed generations（DGs）. Because of its high agility and adaptability，themeasured impedance-based protection schemes are considered as common alternatives to detect...
更多Number of views：3121 Amount of downloads：6534
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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：3098 Amount of downloads：6556
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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：3089 Amount of downloads：5778
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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：3079 Amount of downloads：6628
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LIU Tong，YIN Zhonggang，BAI Cong，YUAN Dongsheng
Abstract: In order to improve the position sensorless control performance of permanent magnet synchronouslinear motor（PMSLM），a position sensorless control method based on disturbance compensated flux observer（DCFO）was studied. This method treats the notch filter as a disturbance observer and combines it with a feedb...
更多Number of views：3077 Amount of downloads：11001
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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...
更多Number of views：3066 Amount of downloads：7681
