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XIAO Longhai,FU Ming,JIN Hai
Abstract: Aiming at the problem of power deviation caused by uncertain influence of renewable energy andelectric heating and cooling loads in the integrated energy system(IES)to realize integrated energy system optimaldispatch,a double-layer IES optimal dispatch strategy was proposed by combining the stochastic mode...
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Number of views:2912 Amount of downloads:10232
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YANG Zhengdong,SHI Haobo
Abstract: The tracking of the distorted current signal without static error cannot be completed by a single PIcontrol. In order to improve the quality of the grid current,a harmonic compensation method for parallel active filters under extreme loads was proposed. Create the main circuit topology of the parallel acti...
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Number of views:5090 Amount of downloads:10231
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HU Changsheng,LI Yang,SHAN Qiang,LIU Hui
Abstract: The fault-tolerant control of active power filter(APF)has component redundancy,which leads to the increase of fault-tolerant control error,the decrease of execution efficiency and fault-tolerant rate. Aiming at these problems,a fault-tolerant control method ofAPF based on component redundancy was proposed....
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Number of views:5940 Amount of downloads:10223
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ZHANG Rui,XIAYan,HUANG Guiping,CHEN Renzhao,YANG Yili
Abstract:Aiming at the poor robustness and system vibration problem of asynchronous motors under thetraditional sliding mode control,a variability coefficient power exponent reaching law(VCPERL)was proposed todynamically change the control coefficients according to the position of the sliding mode surface,and the sl...
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Number of views:3362 Amount of downloads:10208
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ZHOU Jun,XIAO Yuanbing,YAN Huamin,LU Jingjing,XU Tiefeng,ZUO Fanglin
Abstract:In order to improve the power coordination ability among microgrids in the microgrid group,it isnecessary to consider the correlation between renewable energy generation output and the difference in load timedistribution in different regions in the microgrid group planning. A scenario generation method that...
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Number of views:2235 Amount of downloads:10199
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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...
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Number of views:2683 Amount of downloads:10192
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HOU Yongquan,MA Lifang,MEI Shuang,WU Bo,WANG Tan,LU Tao
Abstract:In recent years,the use of microinverters has received a lot of attention as one of the viable methodsfor residential and commercial PV power conversion systems. Flyback inverters operating in current continuousconduction mode(CCM)have been widely studied for their low output ripple current,high efficiency,...
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Number of views:2536 Amount of downloads:10181
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LI Xuhui,XIE Baihuang,HUANG Xiaoyong,XUYan
Abstract: The collector line short-circuit fault is one of the most common faults for the grid-connected doublyfed wind farms. Because the introduction of the crowbar discharge resistor,after the unsymmetrical faults of the collector line,the positive and negative sequence impedances of DFIG will produce the differe...
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Number of views:5815 Amount of downloads:10178
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PAN Guangxu,GONG Chiyu,LI Xingyu,HU Jun,LI Yingjie,WANG Ruiqi
Abstract: As an essential part of power system design and operation scheduling,electric load forecasting istroubled by strong randomness and low accuracy. Moreover,the application of advanced forecasting algorithms isassociated with data management system,while the traditional data management system is very inconven...
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Number of views:5575 Amount of downloads:10155
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WANG Xuli,XU Jiayin,SHEN Yuming,LI Kun,FENG Peiru,JIANG Guifen
Abstract:In order to make full use of the frequency modulation capability of the wind turbines,consideringthat a conventional wind-power coordinated frequency control strategy not only results in some fluctuations in thefrequency of the system,but also requires high energy storage capacity and poor economic efficien...
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Number of views:2062 Amount of downloads:10133
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ZHANG Yexin,DENG Yunchuan,LIU Zhigang,ZHANG Yuting,CHEN Tao,HUANG Ke
Abstract: When the high-speed electric multiple units(EMUs)pass through the long downslope route,speedlimit is required to meet the safety of train operation,the regenerative braking energy generated in this process isreturned to the traction network and may threaten the safety of power supply. At present,there are ...
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Number of views:4984 Amount of downloads:10126
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ZHANG Yubo,LIU Xu,CAO Yang
Abstract: The hybrid excited segmental rotor flux switching permanent magnet(HESRFSPM)machine basedon eccentric pole was proposed. Under the condition of constant air gap area,the segmental rotor structure based on eccentric pole can reduce 2,4,10 radial air gap flux density space harmonic amplitudes by comparing ai...
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Number of views:5152 Amount of downloads:10114
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CAI Chunchen,MAO Xuefei,ZHAO Lei,CHEN Zhen,LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low,which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor,a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First,the tw...
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Number of views:4700 Amount of downloads:10108
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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 ...
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Number of views:3269 Amount of downloads:10095
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LI Jianjie,GAI Pengyu,WANG Lihua,ZHANG Jian,SUN Hongbo,XIN Chunqing
Abstract: In order to improve the optimal allocation of renewable energy in microgrid and reduce theuncertainty of source load in microgrid,a multi-objective coordinated scheduling optimization method for microgrid based on Pearson correlation coefficient meta-learning(PCC-ML)source load prediction was proposed. Fir...
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Number of views:2742 Amount of downloads:10084