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CHEN Weikang，WANG Haixin，ZHANG Zhiyong，CHEN Zhenyu，SHEN Jie
Abstract：Flux-weakening control technology can effectively broaden the speed range of the permanentmagnet synchronous machine（PMSM），therefore，it is of great significance to the research on the flux-weakening control of permanent magnet synchronous machine. Most of flux-weakening modified the flux-weakening current c...
更多Number of views：486 Amount of downloads：423
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YIN Xiang，ZHANG Xiaojun，FENG Xinjia，CHENG Shi，TAO Yuxin，XIAYuande
Abstract：As the penetration rate of new energy and power electronic equipment increases，the inertia anddamping of the power system decrease，and the stability decreases.The grid-forming control technology builds avoltage source to support the stable operation of the large power grid through the converter，so as to pla...
更多Number of views：504 Amount of downloads：447
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LI Shengnan，HE Tingyi，HE Xin，HE Peng，ZHANG Yongchang，ZHANG Shengan
Abstract：During the joint operation of permanent magnet direct drive wind power generation systems，thechanges in motor side parameters may cause problems such as reduce control accuracy and stability on the machineside，which in turn affects the DC bus voltage of the converter，leading to power fluctuations on the gri...
更多Number of views：385 Amount of downloads：419
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YIN Zhenhuan
Abstract：Due to the advantages of faster dynamic performance and smaller torque ripple，high frequencypulse voltage injection（PSVI）is widely used in sensorless control of permanent magnet synchronous motor（PMSM）at low-speed range. Under low switching frequency，the dynamic and steady performance of thetraditional high...
更多Number of views：407 Amount of downloads：414
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WAN Xiaojian，WAN Zibo
Abstract：A rotor position detection strategy based on virtual neutral point was proposed to realize positionsensorless control of BLDC motor. Through the three-phase terminal voltage with the same value of three resistancesstar connection to construct a virtual neutral point，the relationship between the virtual neut...
更多Number of views：817 Amount of downloads：470
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LIU Xinglong，XIE Yihan，YANG Ziyang，ZHANG Zhilong，YI Hao，ZHUO Fang
Abstract：Active power filters（APF）are widely used for dynamic compensation of power system harmonic.However，under weak grid conditions，the interaction between APF，nonlinear loads and grid impedance can easily lead to the stability issue of harmonic oscillation around the compensation frequency，resulting in the fault...
更多Number of views：710 Amount of downloads：459
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LI Wei，LUO Cheng，YANG Kai，WANG Xuming，QIU Lingfeng，HUANG Yuhao
Abstract：When the permanent magnet assisted synchronous reluctance motor（PMaSynRM）runs at highspeed with flux-weakening control，the DC bus voltage utilization is not high，and the efficiency and torque output capacity of the motor are low. Therefore，a flux-weakening control strategy of permanent magnet assistedsynchr...
更多Number of views：722 Amount of downloads：431
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WANG Xuming，LUO Cheng，XIONG Zhi，YANG Kai，XU Zhijie，LI Yinbin
Abstract：In response to the complex working environment of pumped storage energy units，wheredisturbances such as temperature variations are prominent，and considering the insufficient control precision oftraditional vector control for brushless doubly-fed machine（BDFM），a study was conducted on a control strategybased...
更多Number of views：686 Amount of downloads：496
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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：781
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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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HU Yujie，ZHU Shenglong，WU Shaolei，FENG Yu，WANG Ming，LOU Wei
Abstract：The flexible DC interconnection of medium and low voltage can improve the flexibility andreliability of the distribution network，and the dual active bridge converter is a key link in achieving voltageconversion and electrical isolation in flexible interconnection equipment.The current source resonant dual a...
更多Number of views：990 Amount of downloads：757
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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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WANG Zhengqi，WEI Wei
Abstract：Flexible multi-state switch（FMSS） is a new type of power electronic device that replacestraditional tie switches and is applied to modern distribution networks. It can optimize the consumption andregulation of distributed power sources in modern distribution networks. The FMSS controlled by VSG is notaffect...
更多Number of views：989 Amount of downloads：674
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TAO Yan，WANG Chenqing，ZHENG Mingzhong，YUAN Yubo，KONG Xiangping，LIN Jinjiao
Abstract：With the rapid development of the society and economy and the accelerated construction of newpower systems，flexible interconnection has gradually become an important technical means for upgrading thestructure and enhancing the flexible regulation ability of distribution network. A power coordinated control ...
更多Number of views：995 Amount of downloads：856
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RONG Zhenshuai，CHI Yingchao，SUN Zhan，WANG Yijie，XU Dianguo
Abstract: The arrival of the 5G era has put forward higher requirements for the power system，that is，theconverter is required to have high efficiency，high power density，and rapid dynamic response. In response to thisproblem，the third generation of wide bandgap semiconductor device gallium nitride（GaN）transistors was...
更多Number of views：4104 Amount of downloads：1964
