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TIAN Kai，LI Fengsheng，CHU Zilin，YU Zhibin，LI Teng，WANG Mingyue
Abstract: Aiming at the short circuit fault protection of medium voltage three-level converter with IGCT asthe core and the monitoring of changes in main circuit device parameters during operation，a method was proposed to simultaneously realize fault identification of IGCT three-level converter and monitoring of mai...
更多Number of views：1278 Amount of downloads：1066
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WANG Junlong，QIAN Xujun，LI Yongxiang，WANG Shouchang
Abstract: It is well known that the power system operation process will appear to require explicit justprediction difficulties and other problems，the power system operation reliability prediction model based oncontinuous collaborative machine learning algorithm was constructed.First，the continuous collaborative mach...
更多Number of views：1073 Amount of downloads：862
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LI Lingxin，JIAO Yuping，SUN Jiacheng，DENG Fujin，ZHANG Qi，REN Biying
Abstract: High voltage converter is often used in high voltage direct current（HVDC）transmission system tocontrol power supply nearby at high potential. However，the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem，a hig...
更多Number of views：1774 Amount of downloads：1224
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TANG Weifeng，WANG Changjiang
Abstract: In the motor controller of new energy vehicles，due to insufficient current capacity，high cost，andlimited heat dissipation capacity，parallel power devices are often used to extend current capability of power inverter for EV applications. Current imbalance can be caused by device parameter tolerances，parasit...
更多Number of views：1768 Amount of downloads：1157
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TONG Zhan' anxin，SU Jianhui，ZHANG Jian，DU Yan
Abstract: The requirements for wireless charging of automated guided vehicle（AGV）batteries are low voltageand high current，full-wave-synchronous-rectification（FWSR）can improve efficiency and reduce costs. Firstly，AGV wireless charging topology and working principle were introduced in detail. Secondly，aiming at the p...
更多Number of views：1741 Amount of downloads：1190
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XUE Yufeng，SU Jianhui，WANG Haining，DU Yan
Abstract: When the input DC voltage is high，considering the limited voltage endurance capability of the powerswitch of the inverter，an input-series and output-parallel（ISOP）inverter topology was adopted，which is composed of two single-phase full-bridge inverter modules. The input DC voltage could be divided equally ...
更多Number of views：1770 Amount of downloads：1293
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LIU Hong，XU Shihao，YANG Lingsheng
Abstract: The frequency division phenomenon of the wireless power transfer（WPT）circuit in the electricvehicle wireless charging system under the premise of the optimal load resistance was discussed．In the optimizedWPT circuit，by changing the value of the coupling coefficient（k） between the master and slave coils in ...
更多Number of views：2091 Amount of downloads：1305
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CHEN Qun，ZHOU Jiemin，HONG Feng，ZHENG Gang，XI Zhiyang
Abstract: The solid-state power controller，which integrates the functions of traditional power distributiondevices such as circuit breakers and relays，is the core component of the all-electric aerospace vehicle powerdistribution system.Among them，the inverse time overcurrent protection technology is one of the key t...
更多Number of views：2088 Amount of downloads：1268
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GUO Peijian，JI Shiqing，LIU Juan，HE Jinwei，BAI Yang，GUO Yan
Abstract: Due to the special characteristics of the structure and load of the traction power supply system，serious imbalances can occur in the three-phase power supply system，which restricts the development of highspeed，heavy-haul railways. The structure of a single-three-phase combined co-phase power supply system ...
更多Number of views：1939 Amount of downloads：1418
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YE Jianmin，WANG Ruoyu，LUO Hongmei，XIE Yan
Abstract: The receiving end hybrid line commutated concerter based voltage source converter（LCC-VSC）notonly has the advantages of LCC and VSC，but also adopts the structure of high-voltage valve group LCC and lowvoltage valve group three-end parallel VSC in series at the receiving end. Therefore，the receiving end hyb...
更多Number of views：1939 Amount of downloads：1425
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ZHOU Wen，YANG Shaobo
Abstract: In the DC microgrid，bus voltage stability is the key to maintain the normal operation of the system.Load switching and distributed micro-source power fluctuations will affect the stability of the DC bus voltage. Tosolve the above problem，a compensation control strategy based on the residual generator was p...
更多Number of views：1944 Amount of downloads：1187
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LIANG Biao，ZHANG Yiming，ZHANG Dong，LI Gen，WANG Xuhong
Abstract: With the increasing demand for geological exploration in complicated terrain in China，thedevelopment of helicopter transient electromagnetic system（HTEM）has been paid more and more attention. A pulse current transmitting circuit with multi-excitation sources was proposed to meet the demand of transmitting ...
更多Number of views：1987 Amount of downloads：1073
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NIU Shengsuo，CHENG Bo，LI Jinbo，LÜ Linfei，FU Xiulai
Abstract: Avoltage disturbance detection method based on mathematical morphological filtering and derivationdq transformation was proposed. Firstly，in order to reduce the interference of pulses，harmonics and other noises in the signals to be detected，a composite morphological filter was constructed based on adaptive...
更多Number of views：1808 Amount of downloads：1172
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GAO Shanxue，YANG Xin，SHEN Wenbing，ZHONG Wei，ZHANG Shuai，WANG Min
Abstract: DC microgrid usually consists of a plurality of power electronic converters with feedback controlconnected to a common DC bus. Although the control loop design of each individual converter has a good stabilitymargin，the interconnection of multiple power and load converters can cause stability and performan...
更多Number of views：1866 Amount of downloads：1115
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ZHOU Xuesong，GUO Kairui，MAYoujie，ZHONG Weibao
Abstract: Although the parallel connection of inverters in a microgrid system increases the system capacity，itcreates a circulation path which provides the conditions for the generation of zero-sequence circulating current（ZSCC）. In order to solve the problem of system loss caused by ZSCC，a ZSCC controller was desig...
更多Number of views：2190 Amount of downloads：1161
