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YOU Hanwen，CHEN Xi
Abstract：A modeling method based on fractional calculus was proposed to analyze the working mode of halfbridge LLC resonant converters and the influence of the "parameter drift" of the resonant capacitor on the workingmode of the converters. Then，based on the Oustaloup's filtering algorithm，a simulation model of...
更多Number of views：1846 Amount of downloads：7826
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ZHAO Weicheng，MA Haoyuan，HUANG Jinming，CAO Xin，KE Xingsi
Abstract：Voltage source converter（VSC）working as the interface of new energy stations connects to urbanmain network with long-distance AC line，which results a weak grid connected condition and has a risk of DCvoltage instability. To analyze the mechanism of DC voltage instability of weak grid connected VSC，a DC volt...
更多Number of views：1439 Amount of downloads：7784
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HUO Zhen，XIE Jingcheng，WANG Chenyu，LIU Hao，MENG Jianhui，GAO Benfeng
Abstract：Grid-forming（GFM）converter is a voltage source and has good adaptability and frequency-voltagesupport in weak grid，but is prone to oscillation instability in strong grid due to impedance characteristics. To solvethis problem，based on the analysis of the impedance characteristics of the GFM converter，an adap...
更多Number of views：1939 Amount of downloads：7783
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LEI Aoyu，SU Tingting，MEI Yong，HUANG Fangneng，WANG Yu，WU Wei
Abstract：In the critical period of the implementation of the strategy of "carbon neutrality，carbon peak"，thefrequency characteristics of the new power system show a series of new characteristics，such as the reduction ofnode inertia level and obvious distribution difference，and the maintenance of frequency stability ...
更多Number of views：2671 Amount of downloads：7780
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CUI Yulu，SHANG Xingming，QIAN Xin，TONG Xiaoqing，ZHANG Zhiguo
Abstract：In response to the susceptibility of wind storage DC building microgrid systems to externalinterference，the DC bus is prone to instability during multi-mode switching and high-power load switching，posing a serious threat to the safe and reliable operation of electrical equipment. A large-signal simplified m...
更多Number of views：2194 Amount of downloads：7774
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DANG Yihan，XU Chuanfang，WANG Shaozu
Abstract：Usually，the DC side of the traction rectifier requires a series LC resonant circuit to filter out thepulsating component of 2 times the grid frequency. When the resonant inductor on the DC side had a short-circuitfault，the pulsating component would be transferred to the motor side，the problems such as torque...
更多Number of views：1962 Amount of downloads：7756
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WEI Xin，LI Yubo，ZHANG Yun
Abstract：Currently，the optimal modulation strategies for SS resonant networks under different operatingconditions have not been fully explored. Therefore，the optimal modulation strategy of SS resonant network wasinvestigated in low-power situations to improve the transmission efficiency and charging stability of the...
更多Number of views：1528 Amount of downloads：7747
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XU Hai，MI Yanqing，WANG Yanyang，XU Zhipeng
Abstract：Permanent magnet synchronous motor（PMSM）has the advantages of fast dynamic response，highpower density，and high torque at low speed，but the temperature variation and complex working conditions willcause the variation of PMSM parameters，thus affect motor performance and reduce the output efficiency. Toaddress...
更多Number of views：2275 Amount of downloads：7720
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CHE Zihang，WU Jiahui，WANG Weiqing，ZHANG Hua，YANG Jian，PEI Yufeng，ZHANG Jingang
Abstract：To further improve the economy of integrated energy system（IES）capacity allocation，an IESoptimization configuration model based on supply-demand collaborative response was proposed，aiming todetermine the optimal comprehensive capacity of various equipment in the system. First of all，based on thecharacterist...
更多Number of views：1848 Amount of downloads：7696
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YUAN Minxin，YIN Zhonggang，LUO Peien，ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor（IGBT）of the permanent magnet synchronousmotor（PMSM）drive system，an error current polarity method based on model predictive current control（M...
更多Number of views：2566 Amount of downloads：7653
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WU Zuoping，WANG Hongyan，ZHANG Qianfu，XIE Qing
Abstract：Electricity theft by users is the main cause of non-technical loss of electric energy in power grids，which causes huge economic losses and resource wastage to the power system. Compared with a large number ofusers' normal electricity samples，electricity theft users belong to a minority class of samples，...
更多Number of views：2056 Amount of downloads：7649
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LIU Tong，YIN Zhonggang，BAI Cong，YUAN Dongsheng
Abstract: In order to improve the position sensorless control performance of permanent magnet synchronouslinear motor（PMSLM），a position sensorless control method based on disturbance compensated flux observer（DCFO）was studied. This method treats the notch filter as a disturbance observer and combines it with a feedb...
更多Number of views：2512 Amount of downloads：7640
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LI Mingbo，SUN Zhiyuan，ZHENG Kun，LIU Mosi，GAO Like
Abstract：With the increasing scale of new energy power generation and the continuous reduction of lithiumbattery cost，energy storage technology has gradually become an important supporting technology to achieve thegoal of "double carbon". However，the state of charge（SOC）of the energy storage system is too high or to...
更多Number of views：1570 Amount of downloads：7636
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LIANG Hong，QIAN Renjun，CHENG Yongjun，HU Jiangyu，ZHANG Man
Abstract：As a kind of winch driven by motor，electric winch has more excellent performance of cable control.However，in the process of retracting and releasing the cable，the drum inertia of the electric winch will change with the change of the cable stock. This unknown inertia change will lead to mismatching of motor ...
更多Number of views：1023 Amount of downloads：7565
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ZHANG Guoqiang，NIU Ben，YANG Hua，WANG Gaolin，XU Dianguo
Abstract: Maximum torque per ampere（MTPA）control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor（PMSM）. In the sensorless drivesystem，the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
更多Number of views：2563 Amount of downloads：7555
