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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...
更多Number of views：249 Amount of downloads：242
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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...
更多Number of views：258 Amount of downloads：290
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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...
更多Number of views：215 Amount of downloads：258
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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...
更多Number of views：179 Amount of downloads：308
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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...
更多Number of views：224 Amount of downloads：305
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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...
更多Number of views：195 Amount of downloads：260
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LI Juan，WEI Yalong，ZHANG Shiqian，GONG Peijiao
Abstract：A three-phase four-wire energy storage type low-voltage control device with the function of gridvoltage unbalance compensation was designed. Firstly，a control method based on active voltage droop and constant power factor was introduced in detail to solve the problem of low voltage at the terminal of substa...
更多Number of views：210 Amount of downloads：238
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GONG Weizheng，YAO Yin，CHEN Mengying，LI Dongdong，ZHANG Xianming，ZHU Yedong
Abstract：The rapid increase in the proportion of renewable energy in the East China Power Grid System andthe continuous decline in the rotational inertia and frequency modulation resources in the system will pose a threatto the system's frequency immunity and stability. The existing research focuses on the devel...
更多Number of views：70 Amount of downloads：53
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ZHANG Xuyang，ZHANG Maosong，WANG Xiuqin，CHEN Zhong，WANG Qunjing
Abstract：In view of the problem that the transfer branch of the current high-voltage DC circuit breaker mostlyadopts uncontrollable full-bridge transformer coupling energy supply，which is not conducive to controllable andstable power supply，and low energy utilization，a combined DC circuit breaker energy supply metho...
更多Number of views：62 Amount of downloads：53
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FAN Yuanliang，ZHU Junwei，WU Han，HAN Xiaolan，HUANG Xinghua，CHEN Jinyu
Abstract：Accurately estimating the state of health（SOH）of lithium-ion batteries is crucial for optimizingenergy storage systems' operation，management，and maintenance. Existing methods that extract health featuresfrom single-stage charging data fail to exploit battery aging information fully，leading to a suboptim...
更多Number of views：67 Amount of downloads：51
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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...
更多Number of views：59 Amount of downloads：43
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GENG Likai，HOU Juan，ZHANG Chunxiang，HU Wenying，LI Wenhua，LI Cuijuan
Abstract：Thermal and magnetic protection circuit breakers provided short circuit protection by instantaneoustripping devices. In the magnetic field formed by the coil with current，the moving armature and stationary coreovercomed the spring force and engage under the influence of electromagnetic force，thereby pushing...
更多Number of views：68 Amount of downloads：43
