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LEI Aoyu ,LI Jun ,MEI Yong ,TONG Ning ,WANG Yu ,WU Wei
Abstract:The stability analysis of power system transient voltage,power angle,and frequency is often basedon short-time-scale electromechanical transient simulation,which requires a relatively accurate large-scalesimulation model,which not only has low simulation efficiency but also takes a long time,thus giving ris...
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Number of views:199 Amount of downloads:291
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XIANG Zhiping,MAYuhe,GAO Jian
Abstract:In order to reduce the loss of electric energy in the process of energy conversion and improve theenergy efficiency of aluminum air battery,an energy efficiency model based on the internal resistancecharacteristics of aluminum air battery was established,and the variations of operating conditions(operatingt...
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Number of views:225 Amount of downloads:293
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SUN Jia,HAN Shuntian,NI Lianghua,LÜ Ganyun
Abstract:While a large number of distributed generator(DG)keep penetrating into distribution networks,the problems such as voltage violation and network power congestion become more and more serious. Soft open point (SOP)can quickly achieve flexible interconnection and accurate power flow control,effectively address...
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Number of views:215 Amount of downloads:302
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XU Zhance,XU Wei
Abstract:Aiming at the problem that the photovoltaic grid-connected inverter system operates under multipledisturbances,an linear active disturbance rejection control(LADRC)grid-connected strategy combined withphotovoltaic system was proposed. Firstly,the dynamic process of PV grid-connected system was analyzed andm...
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Number of views:245 Amount of downloads:262
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MA Zun,CHEN Haoying,DENG Can,CHEN Yong,GUAN Lin
Abstract:The development of modern power systems with wide span,low inertia,and complex structuremakes the frequency stability problem increasingly prominent,and the spatial-temporal distribution characteristicsof frequency are distinct. Taking the actual power grid as the object,the impacts of large-scale new energ...
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Number of views:109 Amount of downloads:69
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WANG Yi,JIA Hongbo,WANG Cong,ZHANG Lihui,YANG Minghao,LI Baohui
Abstract:It is an important means to improve the anti-G ability of pilots to simulate the flight G-loadcharacteristics of aircraft in full envelop flight on the ground through centrifuge. With the great improvement ofmaneuvering performance of manned aircraft,it is extremely difficult to accurately analyze its fligh...
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Number of views:95 Amount of downloads:67
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GE Yaming,ZHOU Chenbin,MENG Yihua,SHEN Jiaoxiao,CAO Haiou,REN Xuchao
Abstract:With the accelerated construction of new power systems,the scale and complexity of transmissionsystems are constantly increasing. Therefore,it is urgent to study transmission line fault diagnosis algorithms thatutilize multi-source data as driving sources and meet requirements for accuracy and low time cons...
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Number of views:117 Amount of downloads:69
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YAN Kun,GAN Jingfu,LIU Hongshun,SUI Yizhen,HE Pengkang
Abstract:A fusion prediction method was proposed to predict and correct the calculation deviation of the toptransformer oil temperature model in IEEE guideline,so as to realize the more precise prediction of the transformertop oil temperature(TOT). Firstly,the characteristics of the transformer TOT model and the ext...
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Number of views:95 Amount of downloads:71
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QIU Shuming,ZHAO Bin,CHEN Kuilin,CHEN Zhibin,LI Chao
Abstract:An anti-interference domestic variable frequency multi-drive system solution for the five-standcontinuous cold rolling line in the steel strip cold rolling field was presented. Firstly,the mechanical equipmentand rolling process of the 900 mm five-stand continuous rolling line was introduced,and matched the...
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Number of views:90 Amount of downloads:78
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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:351 Amount of downloads:345
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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:358 Amount of downloads:356
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LIU Qiwei,ZENG Jiang
Abstract:In view of the need to test the operation of power electronic equipment under various workingconditions in the current new power system,a control strategy using linear auto-disturbance rejection technologywas proposed to study the power grid simulator with line impedance simulation function. On this basis,i...
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Number of views:291 Amount of downloads:329
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LIU Xue,ZHAO Lu,MA Chengyao,FAN Enze,GE Qiongxuan
Abstract:High-frequency transformers are an essential component in series-resonant DC/DC converters,andtheir stable operation has a decisive impact on the reliability,efficiency,and power density of power supplysystems. Nanocrystalline magnetic cores are widely used due to their advantages of high saturation magneti...
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Number of views:262 Amount of downloads:386
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ZHANG Junkun,LEI Ertao,JIN Li,MA Kai,XIA Chenyang,WANG Xirui
Abstract:The rapid development of modern power electronics technology promotes the insulated gate bipolartransistor(IGBT)wide range of applications in the AC motor drive,inverter,switching power supply and newenergy industry. In the application process of IGBT,due to the complex and varied circuit topology and syste...
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Number of views:352 Amount of downloads:378
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WU Yue
Abstract:The problem of AC train passing neutral section can be solved by ground's flexible passing neutralsection method. However,for multisystem electric locomotives,the switching of power supply system in neutralzone is much more complicated,but there is little research at present. Based on the approach of ve...
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Number of views:276 Amount of downloads:321