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NIU Zongxian，FAN Bo，FU Yulin，WANG Chunguang，WU Xiaodan，YANG Chenhui
Abstract: Under traditional PI parallel control strategies，synchronous control systems of multi-motor rigidconnection structure have the problem of unbalanced motor torque output，and there is even a serious risk of shaftbreakage. Taking the rigid connection structure of multi-motor gear transmission as the research ...
更多Number of views：2074 Amount of downloads：5502
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ZHANG Jun，GONG Min，ZHOU Yi，XIE June，CAO Lei，LIU Yingying
Abstract：In traditional current protection，the effective value of current is compared with the setting value toidentify the fault which is the typical protection scheme for the transmission lines of the power distribution systems.The current is calculated by the fast Fourier transform algorithm. As the calculation o...
更多Number of views：2073 Amount of downloads：4683
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WU Qing，AN Shaoliang，XU Yixuan，DONG Songsong
Abstract: A quasi-resonant Flyback（QR-Flyback）converter with 65 W output was designed. The valleyswitching principle and the switching loss reduction mechanism of QR-Flyback were analyzed，the frequency andloss characteristics of the system under different working conditions were compared，and the advantages anddisadv...
更多Number of views：2073 Amount of downloads：5757
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ZHAO Yifu，ZHANG Guangbin
Abstract：In response to the existing problems of traditional diode based clamp type wind turbine inverters，ahybrid clamp type structure was introduced. Based on the analysis of its working principle，a method for switchingthe switch state and a vector optimization selection method that can avoid modulation waveform b...
更多Number of views：2071 Amount of downloads：6806
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ZOU Yingdong，WANG Fengjun，ZHOU Yu
Abstract：This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators（SDDPMWG）. Firstly，analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
更多Number of views：2069 Amount of downloads：6940
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LÜ Zhengyu，ZHOU Liang
Abstract: In the process of controlling the voltage of active distribution network，there are problems of poorvoltage control effect and low efficiency. A two-stage automatic voltage control method of active distributionnetwork considering load measurement was proposed. Using the probability density function （PDF） cu...
更多Number of views：2069 Amount of downloads：5002
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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：2064 Amount of downloads：6657
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DONG Lizhi，ZHAI Bingcong，WANG Kaifeng，JIA Xuecui
Abstract：When multiple energy storage units are connected to an energy storage station by the powerelectronic converter，the interaction and coupling effect bring challenges to the stable operation of the system. Thesmall-signal model of the parallel storage system was established. The stability analysis was carried ...
更多Number of views：2050 Amount of downloads：7049
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LIU Juan，LEI Hui，LÜ Jin，WANG Yang，Xu Deshu
Abstract：The state of charge（SOC）of batteries is one of the most important parameters in lithium-ionbattery management technology，and high-precision SOC estimation is beneficial for the grid connection andcontrol of energy storage stations. Battery charge and discharge data are not only time-series in nature，but als...
更多Number of views：2049 Amount of downloads：5544
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CHEN Kun，SUN Kaiyuan，LIN Lin，WANG Meng，ZHENG Jiehui，LI Zhigang
Abstract: With the massive access of renewable energy sources and pluralistic load，it is bi-directionalbeneficial to update the distribution network topology. It can not only promote the consumption of renewableenergy and the satisfaction of new load demands，but also improve the rationality of urban distribution net...
更多Number of views：2049 Amount of downloads：5842
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HAO Liangshou，XIA Kepeng，CHEN Xiaoping，JIANG Hai，ZHU Qi，WANG Di
Abstract: The conventional grid voltage observation methods of flexible DC power converters need to designmultiple observers，and use multiple filters，which are also affected by DC-offset. So，a grid voltage observationmethod of flexible DC power converters based on single sliding mode observer and single third-order ...
更多Number of views：2048 Amount of downloads：6313
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ZHOU Hanying，LIANG Junyu，YANG Jiaquan，GAO Jing，YUAN Xingyu，JIN Xiaolong
Abstract：New energy power generation has strong volatility and randomness，and its large-scale gridconnection seriously affects the stable operation of power grid frequency. The new generation of power system alsorelies on communication network for data transmission，which will consume a lot of network resources and i...
更多Number of views：2047 Amount of downloads：8368
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GUO Jiajun，XU Zhi，ZHAI Baoyu，CHEN Yutian，CHEN Junru
Abstract：Aiming at the low voltage ride through（LVRT）problem of the combined grid-connected systemwith new energy-energy storage under the control of the grid-forming converter，an additional voltage limitercontrol scheme based on the traditional LVRT was proposed. Firstly，the shortcomings of the traditional LVRTstra...
更多Number of views：2042 Amount of downloads：6278
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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...
更多Number of views：2031 Amount of downloads：9663
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ZHANG Xing，LIU Pingfei，ZHANG Liuli，ZHANG Yuwei，JIN Yu，XIAO Qian
Abstract：Under the promotion of carbon peak and carbon neutrality，in order to effectively reduce the carbonemissions of distributed generators in islanded AC/DC hybrid microgrid clusters，a distributed low-carbon controlstrategy was proposed. Firstly，the topology of the islanded AC/DC hybrid microgrid cluster was giv...
更多Number of views：2031 Amount of downloads：8957
