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XIE Jijin,HUANG Wendong,SHEN Kang,LIU Bin,MENG Ningjia,ZHANG Yuanyuan
Abstract:In order to improve the compensation effect of LCL-type shunt active power filter,a frequencyadaptive decimal delay repetitive control based on IIR filter was proposed. The resonance suppression loop of LCLwas designed through root locus and the design result was used as a new control object for repetitive ...
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Number of views:325 Amount of downloads:347
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LI Wei,LI Yingqi,HOU Leihao,LI Junpeng,LIU Dejian
Abstract:The main circuit faults of the four-quadrant rectifier and the corresponding influences were analyzedand summarized,focusing on the analysis of the voltage and current parameter equations in the pre-chargingprocess of the intermediate DC link,and the estimation method of the converter input current and the ...
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Number of views:287 Amount of downloads:341
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SUN Heyu,JI Baowei,WEI Yushan,FANG Weihan,WANG Yangyang
Abstract:In response to the problem of slow response speed of main steam pressure in the coordinated controlsystem of thermal power units,the control effect of the coordinated control system was improved by blowing outsome of the stored powder in the pulverizing system. Based on the traditional milling system model,...
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Number of views:382 Amount of downloads:334
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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:395 Amount of downloads:332
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QIN Gang,ZHANG Changqing,JIANG Xuejiao,ZHONG Lei,ZHOU Chaojun,WU Min
Abstract:During the operation of high-voltage DC power grid,due to factors such as load characteristics andvoltage fluctuations,the instantaneous power characteristics such as capacitor current and harmonics are morecomplex,which increases the difficulty of identifying faults in the power grid system. Therefore,a bi...
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Number of views:392 Amount of downloads:332
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SUN Lunan,ZHOU Yong,LIU Xiaodong,LIU Yawei,WANG Haoyu
Abstract:Combined with the current software features and the requirements for function expansion of thecurrent test equipment engineering project,a set of test data analysis system was designed. The system includes the functions of remote test data monitoring,historical data playback,test data analysis,data predicti...
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Number of views:566 Amount of downloads:331
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ZHAO Enlai,HU Yu,GUO Jun,SU Xinlei,LIU Pengyuan,YANG Jun
Abstract:In view of the fact that the original high-dimensional nonlinear power flow model cannot be appliedto the linear planning of distribution network,and the existing linear power flow model has the problem of weakuniversality,a calculation method of distribution network linear power flow was proposed consideri...
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Number of views:389 Amount of downloads:331
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WU Bing,WANG Jianliang
Abstract:The common-mode equivalent circuit model of the motor is the basis for analyzing the electricerosion of bearings,especially for analyzing the technical problems and experimental phenomena of shaft voltageand shaft current,among which the centralized equivalent model is an important calculation basis for the...
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Number of views:338 Amount of downloads:325
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WAN Shaoqi,WANG Bo,GUAN Wenqing,CHEN Jingbo,LÜ Congxin,DONG Haiying
Abstract:The traditional control of electromechanical actuator in aviation electromechanical servo systemmostly adopts two-level inverter and PID control,which can not achieve higher precision control of permanentmagnet synchronous motor. In view of the above problems and the difficulty of space vector modulation al...
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Number of views:478 Amount of downloads:324
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ZHANG Chunxiang,LI Xin,SUN Ning
Abstract:DC high current comprehensive characteristic test device is used to detect the released characteristicsof DC low-voltage electrical overcurrent protection electrical device,which is used in low-voltage electricalindustry for DC products for long time delay,short time delay,instantaneous tripping test and sh...
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Number of views:497 Amount of downloads:324
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XING Gang,LIU Huihong,WANG Bozhao,SONG Wenyang,LIU Longfei,XU Xiandong
Abstract:To address the need of carbon emission peak and carbon neutrality target on local energy systems,an optimal expansion planning method of heat pump was proposed for regional energy stations considering thebenefits from ancillary services. The method was used to support the integration of new technologies suc...
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Number of views:473 Amount of downloads:322
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JIANG Xuejiao,ZHANG Changqing,QIN Gang,ZHONG Lei,ZHOU Chaojun,CHEN Yupei
Abstract:In order to balance the output difference between renewable energy and load in the activedistribution network and reduce the budget cost and user purchase cost,an optimal dispatching method ofdistributed generation units in the active distribution network based on power demand side response was proposed.On ...
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Number of views:361 Amount of downloads:320
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CUI Peng,YU Haisheng,MENG Xiangxiang,WANG Jiankun,SUN Yifei
Abstract:A backstepping error port-controlled Hamiltonian(EPH)controller based on a novel extended stateobserver(ESO)was designed to address the issues of insufficient rotor flux observation accuracy and slow systemdynamic response in induction motor speed control. Firstly,an extended state observer was used to obse...
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Number of views:256 Amount of downloads:318
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HUANG Zhaobin,ZHANG Zhijian,LONG Tan,HU Bin,LIU Wenlong,WANG Gaolin
Abstract:When the Vienna rectifier is connected to unbalanced loads operating under light load conditions,the slight power difference causes unbalanced voltage of bipolar DC bus,which increases the voltage stress on theswitching device and DC-link capacitance. To solve the above problems,a DC offset reduction of neu...
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Number of views:378 Amount of downloads:318
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WANG Yuning,YANG Chengshun,HUANG Xiaoning
Abstract:In response to the poor disturbance rejection performance and issues of parameter perturbation andcontrol precision in traditional control strategies for interior permanent magnet synchronous motors (IPMSM),afuzzy sliding mode control strategy based on the super-twisting disturbance observer was proposed. T...
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Number of views:382 Amount of downloads:317