Power electronics
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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...
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Number of views:1249 Amount of downloads:958
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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 ...
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Number of views:1304 Amount of downloads:1016
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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 ...
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Number of views:1717 Amount of downloads:1053
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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...
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Number of views:1696 Amount of downloads:965
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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 ...
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Number of views:1555 Amount of downloads:971
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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...
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Number of views:1575 Amount of downloads:1033
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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...
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Number of views:1553 Amount of downloads:979
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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 ...
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Number of views:1565 Amount of downloads:899
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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...
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Number of views:1517 Amount of downloads:922
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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...
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Number of views:1550 Amount of downloads:925
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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...
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Number of views:1770 Amount of downloads:979
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LÜ Jiangping,LI Yaguang
Abstract: Recent years,omni-directional wireless power transmission(WPT)technology has attracted moreand more attention as a solution to the limitations of free location and mobility of traditional WPT technology.However,omni-directional WPT is less efficient due to low mutual inductance relative to the transmitter ...
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Number of views:1670 Amount of downloads:1003
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HE Kun,WANG Can,ZHANG Kan,CHEN Kaiping,ZHU Hanqin,FU Zhiyu,XU Lei
Abstract: In the case of asymmetric faults in high voltage direct current(HVDC) transmission system,modular multilevel converter-battery energy storage system(MMC-BESS)has a longer state of charge(SOC)balancing process,uneven allocation of resources,easy to occur over modulation and other security problems,anew SOC ...
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Number of views:1697 Amount of downloads:949
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TIAN Guangping,XUE Hua
Abstract: In response to the stable operation demand of modular multilevel converter(MMC)with singlephaseshort circuit fault,a passivity-based method based on dual-port controlled Hamiltonian with dissipation(Dual-PCHD)model was proposed. To make the grid-connected positive sequence and negative sequence currentsubs...
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Number of views:1780 Amount of downloads:939
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LI Xin,LI Yundi,JIANG Jie,FU Xueguang
Abstract: In the process of using wireless power transfer(WPT)technology to charge batteries,constant current (CC)-constant voltage(CV)charging mode is adopted to ensure battery life and safety. Therefore,a hybrid topology of series-series(SS)and inductor-inductor-capacitor(LLC)topology was proposed. Based on the SS...
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Number of views:1801 Amount of downloads:954