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WANG Yihan，FENG Chuanxin，JIN Tao
Abstract：To solve the problem of neutral point voltage imbalance when the three-level neutral point clamped（NPC）inverter works，an improved neutral balance model predictive control（INB-MPC）algorithm was proposed.The proposed method used a two-stage voltage vector selection method with no weighting factors，deleted the...
更多Number of views：3056 Amount of downloads：11351
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QU Chenming，GUO Kunli，BAI Yang，LI Hang，ZHU Tinghua，MA Peng
Abstract：Considering the influence of grid voltage background harmonics in weak current networks，reverseharmonic peaks appear in the grid-connected current under weighted average current control（WACC），making itimpossible for the system to achieve zero pole cancellation and thus affecting the stability of the grid-co...
更多Number of views：2799 Amount of downloads：10896
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CAO Dayou，LÜ Junmu，BAI Yansong，LI Guorong，ZHOU Yan
Abstract：In order to reduce the carbon emissions of large ships，photovoltaic（PV）power generationtechnology began to be applied to ship power systems. However，due to the limited capacity，low inertia and largeload difference of the ship power system，the traditional virtual synchronous generator（VSG）control strategy ca...
更多Number of views：2607 Amount of downloads：13094
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CHEN Yong，LI Jianbiao，CHEN Jianfu，PEI Xingyu，WU Hongyuan，HUANG Chunyu
Abstract：The characteristics of the DC side of the DC distribution network are multi bus cascades，multipleconverters，and strong coupling of the buses，which can easily cause harmonic resonance and threaten the safeoperation of system equipment.Aims at the problem of unclear resonance interaction and harmonic transmis...
更多Number of views：2632 Amount of downloads：8405
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DONG Yue，LI Linwei，LI Feng，ZHAO Xianghua
Abstract：Low frequency transmission was adopted in the sending end of wind power farm，in order to reduceline impedance and charging current of distributed capacitance，improve the static stability limit and transmissioncapacity. Compared with using flexible DC converter valves to send power and connect to grid，modula...
更多Number of views：2218 Amount of downloads：9831
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WEI Jian，CHEN Jingxin，ZHANG Xinyue，QIU Guangjuan，ZHANG Jiawei
Abstract：High-precision power converters are core components of ultra-precision motor motion controlsystems.Their output current harmonic distortion can cause unnecessary positioning fluctuations in ultra-precisionmotors，severely impacting the precision control system.Total harmonic distortion is an important index ...
更多Number of views：3942 Amount of downloads：14303
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ZHENG Bining，YAN Dong，SONG Peng，ZHANG Zhen，YAN Yan
Abstract：The structure parameters of dual-stator permanent magnet synchronous motors（DSPMSM）wereoptimized with finite element methodTaguchi method at the rated point，maximum torque point，and maximum speed point，respectively，aiming at the problem of large torque ripple of DSPMSM. The influence onelectromagnetic torqu...
更多Number of views：3475 Amount of downloads：12103
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QIN Changfeng，YIN Jiang，SONG Shijie
Abstract：In order to solve the problem of parameter estimation in the high-performance control of squirrelcage asynchronous motor，a method for joint parameter identification of asynchronous motors with dual modelsbased on improved whale algorithm was proposed. This method can effectively identify the stator resistan...
更多Number of views：3149 Amount of downloads：11649
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ZOU Yingdong，WANG Fengjun，ZHOU Yu
Abstract：This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators（SDDPMWG）. Firstly，analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
更多Number of views：2829 Amount of downloads：10468
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SUN Chuanjie，TIAN Kai，XU Wenyuan，LU Beibei，LI Nan
Abstract：A brake unit based on IGCT was designed for different applications of frequency converter inindustrial scenes，especially the medium voltage frequency conversion system without feedback function. IGCTwas used as the main power device，and the parameters and characteristics of IGCT was analyzed. According to t...
更多Number of views：2610 Amount of downloads：11172
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GU Laiqiang
Abstract：The traditional three-phase pulse width modulation（PWM）rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm，the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
更多Number of views：2686 Amount of downloads：10723
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SHENG Jie，GUO Tiantian，JIA Kaili，ZHU Jianfeng，YUAN Yuan，WANG Qi
Abstract：The grid frequently exhibits weak grid characteristics because the impedance fluctuation range ofthe collector network is broad in high permeability distributed generation system. The coupling relationshipbetween the phase-locked loop and the grid impedance leads to desynchronizing between the grid-followin...
更多Number of views：2352 Amount of downloads：11001
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ZHAO Fajin，SHU Zhengyu，WANG Can，LIU Wencan ，HUANG Qiyun
Abstract：Accurate and efficient multi-load forecasting is of great significance for the operation control andscheduling of integrated energy system（IES），in order to improve the load forecasting effect，a integrated energysystem load prediction model based on least absolute shrinkage and selection operator（LASSO）and L...
更多Number of views：2504 Amount of downloads：8457
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TANG Lan，HUANG Liwen，WANG Chenglei
Abstract：A K-means clustering algorithm was proposed and a conditional Wasserstein generative adversarialnetwork with gradient penalty（CWGAN-GP）to address the problem of imbalanced photovoltaic generation datacaused by the low occurrence probability of extreme weather. A prediction approach combining bidirectional l...
更多Number of views：2144 Amount of downloads：10726
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LUO Xiang，LIN Dong，ZHANG Zhenyu，WANG Jueying，CAI Zhiping，LIN Ruoyin
Abstract：To tackle the issues of low execution efficiency and poor fault tolerance in traditional faultlocalization methods for active distribution networks using swarm intelligence optimization algorithms，a two-stagefault location method was introduced based on the SSA-RF algorithm and cosine similarity. Firstly，th...
更多Number of views：2259 Amount of downloads：8229
