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XIONG Wei,CHEN Long,LÜ Shunli,GUO Zhenyu,LU Xin
Abstract:To address the complexities of transformer condition assessment indicators and the overreliance onexpert judgment in the evaluation process,a novel method for fuzzy comprehensive assessment of transformercondition was introduced,which is based on gaming theory and an improved version of the D-S evidence the...
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Number of views:2180 Amount of downloads:6563
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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:2177 Amount of downloads:5236
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WU Xiangyu,XUN Chao,XIAO Fen,LIN Keyao,LIN Chaoqun,CHEN Bojian
Abstract: Existing long-term electricity consumption prediction methods are difficult to solve the problem ofvariable selection,which leads to inaccurate prediction results of power consumption. Therefore,combining theradio frequency variable selection in random forest(RF)algorithm with long short-term memory(LSTM)r...
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Number of views:2164 Amount of downloads:4679
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ZHANG Zihua,LI Yan,XU Tianqi,WANG Yangguang,DENG Xiaoliang
Abstract: In order to improve the prediction accuracy of wind power in new wind farms effectively,theinfluencing factors between relevant wind farms were considered. A variational mode decomposition(VMD)technique was proposed to decompose the wind power preprocessing of a single wind farm into intrinsic modefunction...
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Number of views:2164 Amount of downloads:4867
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GU Jipeng,SHAO Liang,LU Chuiji,ZHANG Youbing,ZHANG Weijie,YANG Jifeng
Abstract: As an important basis of power system operation planning,short-term power load forecasting isgreat significant to the safe and economic operation of power system. A long-term and short-term time seriesnetwork(LSTNet)model was proposed to predict the short-term load variation of distribution area. The model...
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Number of views:2160 Amount of downloads:4464
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WANG Ru,WANG Haiyun,FAN Tianyuan,ZHANG Shengnan
Abstract: University buildings are major energy users,and there are two main forms of energy use:electricityand heat. Making full use of the roof resources of university buildings to develop solar energy projects andrationally allocate energy storage can effectively improve the energy economy. In order to improve th...
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Number of views:2151 Amount of downloads:4400
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LIU Kai,LI Gang,WANG Xin
Abstract: According to the 90 s regular breaking and 15 s emergency breaking requirement for 60 MW axialcompressor used in some large scientific facility,a control strategy of electric hybrid breaking in the convertor wasdesigned. The hybrid braking control strategy was analyzed and calculated,and the optimal brakin...
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Number of views:2145 Amount of downloads:7505
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YANG Xuan,LI Rui,CAO Xiaoqing,LI Lin,GUO Ran
Abstract:During the transition of a microgrid inverter from grid-connected mode to islanded mode and viceversa,pre-synchronization measures are necessary under the virtual synchronous generator (VSG) controlarchitecture to prevent voltage waveform distortion and current surges. A VSG-based parameter-optimized presyn...
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Number of views:2141 Amount of downloads:8341
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QIAO Chunlin,JIN Chuxiong,CHEN Dong,LIU Jianming
Abstract:In response to the potential local electric field distortion and insulation weaknesses that may occurunder high-voltage operating conditions in 35 kV European cable connectors,a 35 kV European cable connectorsstructural design method based on adaptive geometric optimization was proposed. The method integrat...
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Number of views:2141 Amount of downloads:8593
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HU Changbin,MA Tengfei,MA Jianli,XU Zheng
Abstract: Distributed power generation technology is an important part of modern smart microgrid,in whichthree-port isolated DC converter plays an important role. Because the storage battery system can realize the flowand storage of energy,so the combination of three-port isolated DC converter and photovoltaic power...
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Number of views:2133 Amount of downloads:4293
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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:2132 Amount of downloads:5688
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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...
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Number of views:2130 Amount of downloads:6108
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DU Yiming,CHENG Zhijiang,LI Zhiwen
Abstract: In order to realize the high-precision trajectory tracking control of four-wheel skid-steering mobilerobot(SSMR),under slip and external disturbance,an auto-disturbance tracking controller based on double closedloop rail structure was designed,and its stability was proved. First of all,in order to solve the...
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Number of views:2128 Amount of downloads:5783
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WANG Yubo,AN Yang,QIU Shuming,GAO Zhuoxuan,SUN Furun
Abstract:Inverter products have been developing towards higher power density and more compact structure.To enhance the power density of inverter systems within a limited structural space,several prototypes need to bemade and a large number of experiments conducted during the research and development process. To shor...
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Number of views:2118 Amount of downloads:5525
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ZHU Changlin,TU Qunzhang,JIANG Chengming,WANG Shijiao
Abstract:The synchronization accuracy of a multi-motor speed synchronization system is influenced by themotor control algorithm and synchronization control strategy. In response to the shortcomings of existing controlstrategies,a mid-range deviation coupling control strategy for multi-motor speed synchronization sys...
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Number of views:2116 Amount of downloads:7117