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GUO Leilei，ZHU Linqiang，CAO Lingzhi，LI Yanyan，WANG Pengshuai
Abstract: The accurate estimation of rotor angle is an important prerequisite for realizing speed sensorless highperformance vector control of permanent magnet synchronous wind generator. In the speed sensorless control ofpermanent magnet synchronous wind generator based on disturbance observer，the traditional angle...
更多Number of views：3922 Amount of downloads：6249
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DING Qiang，JIANG Yingxu，NI Tuocheng
Abstract: Firstly，the radial force mathematical model of central winding bearingless slice permanent magnetmotors was built. Subsequently，parameters tuning theory of displacement loop PID controller for bearingless motor suspension system was studied，and its inherent drawbacks of PID controller when used for bearing...
更多Number of views：3904 Amount of downloads：4624
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LIU Siyan
Abstract: In order to realize the speed estimation and speed regulation of the permanent magnet synchronousmotor（PMSM）controller，a new type of fractional-order model reference adaptive speed observer was designed.Compared with integer-order observers，this strategy enhanced the adjustable degrees of freedom of the co...
更多Number of views：3850 Amount of downloads：4639
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LI Mingyang，NIU Pingjuan，LI Yuhong，LI Ying，SUI Yu
Abstract: The offset characteristics of transmitting and receiving coils manufactured by different wirelesselectric vehicle manufacturers are a critical issue to ensure the interconnection of domestic and international vehiclecharging. The 3.7 kW wireless energy transmission system was modeled and the SS-type topolo...
更多Number of views：3831 Amount of downloads：4441
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ZHANG Jinbo，YIN Yuan，SHI Jian，LIN Shaoyuan，YAN Lei，HUANG Xiaoyu， LIN Yubin，YANG Dishan，CHENG Nuo
Abstract: In order to reduce the measurement error of transmission line crossing distance and reduce theoccurrence rate of transmission line accidents，a method of transmission line crossing distance measurement basedon grid information model was proposed. The platform of crossing distance measurement including data ...
更多Number of views：3827 Amount of downloads：4503
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YANG Shude1，ZENG Zikang，ZHANG Xinwen，GAO Xiongying，CAI Changhong，ZHOU Xin
Abstract: For the technical requirements of on-load voltage regulation based on power electronic switches，athyristor-based on-load voltage regulation unit topology was given based on the analysis of the possible conduction state of each switch in the steady state and the switching law of different states. Considerin...
更多Number of views：3818 Amount of downloads：4868
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ZHANG Ao，DAI Linwang，MA Zhengyang，LI Shaolin，ZHANG Xueguang
Abstract: Doubly-fed wind turbine is easy to produce sub-synchronous oscillation in series compensation grid.Using virtual synchronous control structure to improve inertia and damping for grid may also lead to subsynchronous oscillation risk. In view of the causes of sub-synchronous oscillation，firstly，the double-fe...
更多Number of views：3816 Amount of downloads：6889
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TIAN Kai，YU Zhibin，YUAN Yuan，CHU Zilin，SUN Chuanjie，YANG Jingran
Abstract: A fine dead-time compensation method based on the medium voltage three-level IGCT outputfiltering topology was proposed to realize the real-time calculation and compensation of the dead-time effect of theinverter output. Based on the topology of the output filter，the transfer function was established，and t...
更多Number of views：3809 Amount of downloads：5054
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SHEN Jiexin，LIU Lei，HE Dandong，LIU Zhenguo，CHU Houguang，MA Hanchao
Abstract: When the current method is used to control the DC transformer of the DC-DC converter，thecontrol efficiency is low，the immunity is poor，and the loss detection error is large. In order to solve the existingproblems，a DC transformer control method based on the SRDAB DC-DC converter was proposed. By analyzingt...
更多Number of views：3807 Amount of downloads：4796
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ZHANG Dewang，CHEN Zhigeng，ZHANG Zhichao，ZHOU Yu
Abstract: Traditional point prediction is difficult to analyze the randomness and uncertainty of wind powerinadequately. Aiming at the shortcomings of point prediction，an interval prediction model based on improvedwhale optimization algorithm and fast learning network（IWOA-FLN）was proposed. Firstly，the convergencesp...
更多Number of views：3767 Amount of downloads：4819
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LI Zhenbo，DAI Linwang，LI Shaolin，ZHANG Xueguang
Abstract: At present the mainstream of doubly-fed induction generators（DFIG）control mode is the currentsource type vector control mode，which is lack of independent of frequency and voltage support ability，but the voltage source type virtual synchronous machine control method can solve the shortcomings. In order to m...
更多Number of views：3766 Amount of downloads：6968
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LI Chasen，WANG Daihua，ZHANG Qiang，TANG Hong
Abstract: The crankshaft is an important component that determines the life of an internal combustion engine.It bears compound alternating stress for a long time，so it is easy to produce fatigue failure. Aiming at the shortageof crankshaft dynamic stress testing methods，a stress testing system with long endurance an...
更多Number of views：3760 Amount of downloads：4028
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WEI Wei，GE Qiongxuan，LI Yaohua，ZHAO Lu，ZHANG Bo
Abstract: The integrated gate commutated thyristor（IGCT）is an important element for efficient and reliableoperation of high power traction converters. The stability of high power converter system is significantly affected bythe voltage and current dynamic characteristics of the IGCT device during the turn-on and tur...
更多Number of views：3729 Amount of downloads：4371
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GAO Xiaozhi，QIAO Yu，CAO Xin，LI Zheng，SUN Huiqin，SUN Hexu
Abstract: DC active power filter（DC-APF）can effectively suppress the bus voltage ripple of DC microgrid. Inorder to solve the problem that DC-APF can not work normally due to the failure of switching devices，a fault-tolerant DC-APF topology based on H-bridge converter was proposed，which could ensure the power qualit...
更多Number of views：3728 Amount of downloads：4643
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WEI Zhengyi，ZHANG Min，ZHOU Mingzhu，DING Xinping
Abstract: In practice，the parasitic parameters have a non-negligible effect on the performance of invertercircuit. The influence of the main parasitic parameters on a new type of switched-coupled-inductor quasi-Z-sourceinverter was studied. By the reasonable analysis of the influence of the parasitic parameters（para...
更多Number of views：3727 Amount of downloads：5869
