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ZOU Jia，ZHANG Jianqiao，JI Chengchun
Abstract: Aiming at the problem that the accuracy of the speed estimation of the traditional model referenceadaptive system（MRAS）method without speed sensor decreases after the speed load mutation in the low speedrange，a speed identification method based on the combination of back propagation（BP）double-layer artific...
更多Number of views：1990 Amount of downloads：6749
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CAI Weiliang，CHENG Haifeng，PAN Zhixuan，CHENG Jin，DAI Mingli
Abstract: The grid connection of doubly-fed induction generator（DFIG）leads to the reduction of systemequivalent inertia and primary frequency regulation capacity. With the increase of DFIG grid connection scale，theproblem of system frequency regulation becomes more and more serious. In view of this problem，frequency...
更多Number of views：2317 Amount of downloads：6719
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ZHOU Ning
Abstract：Focusing on the central position of AC power frequency converter in the development of the nationaleconomy，emphasizingd their critical impact on the safety and efficiency of industrial production. In view of the rapid development of power electronics technology，the field of AC power frequency converter has ...
更多Number of views：3072 Amount of downloads：6689
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CHENG Liang，DUAN Pengyang，SU Hongbang，TIAN Shengjuan，QI Xiaoxuan，YAN Shengping
Abstract：In the background of a high proportion of new energy source connected to grid，the phenomenon ofnew energy interface inverters being connected to the grid through long-distance AC lines is becoming increasinglysignificant. The traditional vector controlled weak grid connected voltage source converter（VSC）bas...
更多Number of views：2391 Amount of downloads：6664
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JIA Pengfei，MENG Zhaohe，ZHANG Zhonglei，FANG Chenghui，LIU Xiaodong
Abstract：With the rapid development of technology，the increase in chip frequency has become a significanttrend that cannot be ignored in the industry. The increase in chip frequency directly drives the gradual increase indata throughput of chip communication interfaces. In the field of transmission equipment，the com...
更多Number of views：851 Amount of downloads：6657
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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：4529 Amount of downloads：6655
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YU Hui，ZHOU Shigui ，MA Feihong，ZHANG Kecheng
Abstract：Permanent magnet synchronous machines（PMSM）has serious chattering problem when traditionalsliding mode observer（SMO）is applied to low-speed operation with fixed sliding mode gain. To solve thisproblem，a full-order sliding mode observer（FSMO）with fuzzy adaptive adjustment of sliding mode gain wasproposed，whi...
更多Number of views：2965 Amount of downloads：6650
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WANG Qi，DONG Xinsheng，HE Shan
Abstract：To address the issue of transient overvoltage at the sending end of the wind farm caused by faults inconventional high-voltage direct current systems system，the impact mechanism of DC faults on transient voltagechanges at the sending end was analyzed. It was discovered that the reactive power surplus of the...
更多Number of views：1986 Amount of downloads：6641
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DENG Jiahao，LIN Lingxue，ZHU Lin，WU Zilong
Abstract：Up to now，the distribution network planning project optimization method rarely considered theimpact of the speed of load growth on the power supply efficiency of the project and the year when the project isselected，and rarely considered the urgency，technical benefit and economic benefit of the project at th...
更多Number of views：2443 Amount of downloads：6630
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GENG Likai，HOU Juan，ZHANG Chunxiang，HU Wenying，LI Wenhua，LI Cuijuan
Abstract：Thermal and magnetic protection circuit breakers provided short circuit protection by instantaneoustripping devices. In the magnetic field formed by the coil with current，the moving armature and stationary coreovercomed the spring force and engage under the influence of electromagnetic force，thereby pushing...
更多Number of views：2107 Amount of downloads：6626
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LÜ Yi，LIANG Wenbo，WANG Qing，LIU Entao
Abstract: The traditional active distribution network location and capacity determination ignores the multienergycomplementary coordination characteristics of the energy system，which led to high cost. Therefore，anactive distribution network location and capacity determination method based on energy interconnection w...
更多Number of views：2446 Amount of downloads：6621
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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：2397 Amount of downloads：6618
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WANG Jin，GE Qiongxuan，ZHAO Lu，ZENG Dihui
Abstract：The combined propulsion，levitation，and guidance superconducting electrodynamic suspensionmaglev train is capable of achieving electromagnetic forces generated by ground coils，which is of significantimportance for reducing construction costs and shortening development cycles. A mathematical model of themagle...
更多Number of views：611 Amount of downloads：6610
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LI Yunwang，CHEN Junde，ZHANG Daping，SANG Yun，HAN Xiaolei
Abstract：An adaptive active arc suppression method based on S-transform correlation degree for distributionnetwork unidirectional grounding was proposed to effectively eliminate single-phase grounding fault arc indistribution network and improve power system stability. The time series data of zero-sequence current o...
更多Number of views：2278 Amount of downloads：6602
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YANG Yanfang，LIANG Zhonghao，ZHANG Meiling，LIU Jiayi
Abstract: Aiming at the problem of low accuracy and comprehensiveness of current identification methods，amethod of reverse power anomaly identification in digital electric energy meter information sampling was proposed.Through the data acquisition system，the digital electric energy meter information sampling work was...
更多Number of views：2610 Amount of downloads：6601
