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KONG Fanting，CHEN Jian，DI Meixian，FU Baoxin，WANG Jianquan
Abstract: Electric power system is becoming more and more power electronization with each passing day，additional losses of the power grid caused by the power quality problem is becoming more and more serious witheach passing day. Solving the power quality problem has become the new way to help the power grid to save...
更多Number of views：1343 Amount of downloads：905
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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...
更多Number of views：1299 Amount of downloads：1156
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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：1283 Amount of downloads：782
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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：1280 Amount of downloads：1070
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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 ...
更多Number of views：1248 Amount of downloads：819
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LI Peiying，XIA Jiakuan，WAN Chengchao
Abstract: In view of the mechanical vibration of the manipulator joint servo system due to the existence offlexible links such as harmonic reducer and toothed belt，a mathematical model considering the change of stiffnesscoefficient and large reduction ratio was established，the mechanism of mechanical resonance was a...
更多Number of views：1242 Amount of downloads：1035
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LI Bingran，FU Hongquan，CHEN Xi
Abstract: Aiming at robust control of six-phase copper rotor induction motors（SpCRIM）under uncertaindisturbances，a new backstepping control strategy based on advanced ant colony optimized（AACO）recursiveRomanovski polynomial neural network（RRoPNN）was proposed. Based on the theory of backstepping controltheory，the con...
更多Number of views：1228 Amount of downloads：1131
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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...
更多Number of views：1207 Amount of downloads：1039
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ZHANG He，CAO Tianbi，LI Xianyun
Abstract: In view of the complex transient characteristics of short-circuit faults in DC power network and thedifficulty of fault identification，the short-circuit faults in DC power network can be identified by detecting the change of capacitance voltage through the analysis of the VSC topology and switch characteri...
更多Number of views：1184 Amount of downloads：890
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FANG Lei，CHU Chengbo，ZHU Xiaojing，HE Yinghong，YANG Huimin
Abstract：In order to address the issue of large output voltage variation from self-powered current transformerin smart measurement switch，ultra wide input voltage range post-stage DC-DC module is required to generatestable system voltage rails. A ultra wide input DC-DC module based on constant on-time control and as...
更多Number of views：1181 Amount of downloads：674
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YU Hui，ZHOU Shigui ，MA Feihong，ZHANG Kecheng
Abstract：Permanent magnet synchronous machines（PMSM）has serious chattering problem when traditionalsliding mode observer（SMO）is applied to low-speed operation with fixed sliding mode gain. To solve thisproblem，a full-order sliding mode observer（FSMO）with fuzzy adaptive adjustment of sliding mode gain wasproposed，whi...
更多Number of views：1159 Amount of downloads：596
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ZHOU Qi，WANG Chenqing，KONG Xiangping
Abstract：Considering that the problem of voltage fluctuations on the DC side caused by the three-phaseimbalance of the AC grid of the flexible interconnection device，a DC voltage fluctuation suppression strategy forflexible interconnection device based on the Torricelli point was proposed. Firstly，by defining the To...
更多Number of views：1117 Amount of downloads：671
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GONG Xuanlin，WANG Junyan
Abstract: In view of the problem that the commutation error of brushless DC motor is difficult to accuratelymeasure during variable speed operation，the relationship between the integral of line voltage difference and themotor rotation angle was analyzed，and it was proved that the integral value of the line voltage d...
更多Number of views：1088 Amount of downloads：885
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WANG Junlong，QIAN Xujun，LI Yongxiang，WANG Shouchang
Abstract: It is well known that the power system operation process will appear to require explicit justprediction difficulties and other problems，the power system operation reliability prediction model based oncontinuous collaborative machine learning algorithm was constructed.First，the continuous collaborative mach...
更多Number of views：1074 Amount of downloads：863
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ZHANG Kuangyi，LIU Haitao，MA Bingtai，ZHANG Chengyu
Abstract: There are many fault distributions along the actual distribution network lines，but the existingvoltage sag stochastic assessment methods only consider the uniform fault distribution. According to the differentfault distribution characteristics along the line，a stochastic assessment method of voltage sag wa...
更多Number of views：1072 Amount of downloads：934
