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GUO Wen,HUANG Zhu,ZHOU Mingzhong,WANG Danxiang
Abstract:The excitation inrush generated when the no-load transformer is closed may appear to causeequipment failure,affect the power quality and lead to line overload and other problems,at this stage,phasecontrolled opening and closing is an effective means of suppressing the inrush,the circuit breaker closingchara...
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Number of views:2029 Amount of downloads:9659
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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...
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Number of views:2896 Amount of downloads:9659
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ZHU Jin,JIANG Ye,ZHONG Chonglei,XU Weihe,MAO Feng,DAI Yongzheng
Abstract:The resilience capacity of farm distribution networks primarily stems from distributed generators,such as photovoltaic and biogas systems,to withstand disturbances and facilitate load recovery as microgrids during system failures. However,the dynamic characteristics of distributed generators and the cascadi...
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Number of views:1572 Amount of downloads:9649
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OU Zhixin,LI Jixia,DENG Chunlan
Abstract: The reliability and stability of electric energy transmission in the power grid are the guarantee ofdriving safety,due to the impact of external interference fluctuations and current arcs on the power grid structure,its parameter acquisition and dynamic modeling become difficult. Firstly,the characteristic...
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Number of views:2631 Amount of downloads:9632
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LIN Xin,GAO Xiang,XIE Zhen,XU Kebao,ZHANG Xing
Abstract: With the increasing proportion of wind turbines,the characteristics of low inertia and weak dampingpower grid become more obvious,which brings new challenges to the smooth operation of power grid. Traditionalcurrent-controlled strategy is difficult to obtain accurate grid synchronization information in wea...
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Number of views:4803 Amount of downloads:9619
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LI Xinhai,FAN Dehe,MENG Chenxu,ZENG Lingcheng,YUANTuolai
Abstract: Due to various environmental factors,the relay platen status recognition needs manual inspection fora long time,and the current popular platen image recognition program requires a huge background computingarchitecture,which can not immediately obtain the verification information in the operation site,and s...
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Number of views:2387 Amount of downloads:9549
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LAI Yongbo,LU Jun,LI Huarong
Abstract: To deal with the mould quantitative casting over-pouring and spillage,based on the analysis of thetechnological process and the control characteristics for a kind of auto molten bucket casting mechanism,under the condition without depending on system concrete models,a three stages casting was proposed to r...
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Number of views:3077 Amount of downloads:9489
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LI Zhenbo,DAI Linwang,LI Shaolin,ZHANG Xueguang
Abstract: At present the mainstream of doubly-fed induction generators(DFIG)control mode is the currentsource type vector control mode,which is lack of independent of frequency and voltage support ability,but the voltage source type virtual synchronous machine control method can solve the shortcomings. In order to m...
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Number of views:4094 Amount of downloads:9440
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YIN Li,SHENG Junjie,YUAN Jie,FENG Yanjun
Abstract:In the context of carbon neutrality,an optimal pricing strategy for electric vehicle charging stationsconsidering carbon emissions was proposed. Firstly,a price response characteristic model of electric vehicle userswas constructed. Secondly,an optimal pricing model with the lowest carbon emission,the minim...
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Number of views:2539 Amount of downloads:9381
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HUANG Xinbing,DENG Xinglong,LIU Xiaojuan
Abstract: Aiming at the problems of low production efficiency,poor consistency of appearance and high laborintensity in the manual way of packaging tin box sleeve film for bagging drinks and tea,a kind of automaticequipment for multi-tin box supporting sleeve film was proposed,which integrated application of program...
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Number of views:2274 Amount of downloads:9378
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HE Yongpeng,WANG Mingyue,WANG Yubo,WANG Chunhui,ZHAO Zesheng
Abstract:Based on the parallel structure of high-power converter system,a high real-time and highsynchronization optical-fiber communication scheme was proposed. The on-fly transmission ensures that thecommunication between the controllers has a low delay,and the clock synchronization algorithm compensates thetime-d...
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Number of views:2326 Amount of downloads:9377
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WAN Jiangkun,SUN Yanchao,SONG Pengyu,NIU Zenong,HUANG Wenxin
Abstract:The traditional three-loop position control applied in the servo system with elasticity causesresidual vibration around the objected position and has long trailing time. To address this issue,a mathematicalmodel of the two-inertia system was established,and the causes of low-damping of the traditional posit...
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Number of views:2281 Amount of downloads:9314
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HUO Huijuan,LI Peidong,XIN Cheng,LI Weiwei,LU Yanchao,CHEN Tianqiong
Abstract:Under the context of the new power system,the high share of renewable energy brings significantchallenges to the security,stability,and economic operation of the system and the grid. An uncertain optimizationscheduling model for hydrogen storage/electricity-gas integrated energy systems supported by large p...
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Number of views:2877 Amount of downloads:9240
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WANG Yingjie,ZHOU Hailan,CHEN Yongfa,BAI Feiying
Abstract:When the switching frequency of the four-quadrant rectifiers in different multiple units deviates,thecurrent will experience low-frequency oscillation,which is not conducive to the operation of the traction powergrid. Therefore,a matrix small-signal modeling method for SPWM comparators was proposed to analy...
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Number of views:2241 Amount of downloads:9212
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YAN Yingshi,QIU Dongyuan
Abstract:Aiming at the interconnections requirements of power frequency(PF),low frequency(LF)anddirect current(DC)brought by the offshore wind power,a hybrid multi-frequency converter was designed basedon the nine-bridge-arm modular multilevel converter(9A-MMC),in which the diode-clamp sub-module wasselected for upp...
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Number of views:1884 Amount of downloads:9192