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LI Xuhui，XIE Baihuang，HUANG Xiaoyong，XUYan
Abstract: The collector line short-circuit fault is one of the most common faults for the grid-connected doublyfed wind farms. Because the introduction of the crowbar discharge resistor，after the unsymmetrical faults of the collector line，the positive and negative sequence impedances of DFIG will produce the differe...
更多Number of views：3681 Amount of downloads：1540
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ZHAO Chaokun，YAN Tao，ZHOU Jiachao，YUAN Zhanwei，MENG Pu
Abstract: The AMK servo control system is widely used in cigarette machine equipment like German Protos-M5 and local product ZJ116. But its failure parts repaired could not be guaranteed to operate safely and reliably. Ifthose parts are replaced frequently，the efficiency of the equipment will be seriously impact. To...
更多Number of views：3982 Amount of downloads：14981
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LIU Xiaodong，SUN Lunan，LIU Yawei，GUAN Peng，RONG Xifeng
Abstract: In order to meet the needs of the testing laboratory's task scheduling and process design functions，the new applications were developed based on the existing laboratory information management system，such asscheduling system and process designer. According to the type and priority of the test task，the t...
更多Number of views：3782 Amount of downloads：1554
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HU Bo，LI Tong，WANG Yihe，CUI Jia，YANG Junyou，XU Junjin
Abstract: Combined with the feature extraction ability of self-coding and the time series analysis ability oflong short-term memory（LSTM），a short-term load forecasting model based on LSTM self-coding was proposed.First of all，based on the basic principle and flow of the depth model，the functional characteristics of t...
更多Number of views：5042 Amount of downloads：2710
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CAO Wei，DONG Haoyang，LI Yun，WEI Huangli，GAO Shengkai
Abstract: The proportion of distributed photovoltaic connected to the grid is gradually increasing，which bringsa series of problems，it can draw lessons from foreign experience to provide practical reference for solving relevantproblems. As one of the leading countries of energy transformation in Europe，Germany's ex...
更多Number of views：4614 Amount of downloads：2497
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MA Xiaoliang
Abstract: Pump-turbine units are kind of hydropower facilities with both pump and power generation abilities，they are used mainly in pumped-storage plants and also in water-managing projects. Conventional units operate withfixed-speed. To make power control quick and flexible and to extend operation ranges of turbine...
更多Number of views：4772 Amount of downloads：2558
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WANG Zhifu，SUN Qingle，LI Haolong，WANG Xu，GUO Yifeng，LIANG Changchun，WANG Rui
Abstract: With the development of motor drive system of new energy vehicle and the increase in complexity and integration，testing of motor drive system has become an important part of vehicle development. But high-power motor drive testing is more difficult and has higher risks，especially for motor control system，tr...
更多Number of views：4772 Amount of downloads：2618
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CHEN Ya’ai，LIN Yankang，ZHOU Jinghua
Abstract: The power conversion system in microgrid adopts flexible control strategy to supply the demand loadafter transforming various energy sources. The power conversion system enables the microgrid to be connected tothe grid as a controllable whole unit or to operate independently. Its control strategy is particu...
更多Number of views：4804 Amount of downloads：2993
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CHEN Ya′ai，LI Zixuan，ZHOU Jinghua，WU Jiewei
Abstract: As a three-level Boost AC/DC converter with unidirectional energy flow，the VIENNA rectifier iswidely used in electric vehicle charging systems and other occasions. The key to improve the power quality and thesystem reliability is the quality of control strategy. Therefore，the control strategy of the VIENNA ...
更多Number of views：4802 Amount of downloads：2354
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CHEN Ya′ai，HONG Yinan，ZHOU Jinghua，ZHAO Junwei
Abstract: Cascaded energy storage power conversion system is widely used in high voltage and large capacityoccasions，it plays a role of peak shaving and valley filling for power system，its control strategy directly affects theperformance and reliability of energy storage system. Therefore，in recent years，the research...
更多Number of views：4380 Amount of downloads：2431
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SONG Wenxiang，REN Hang
Abstract: Six phase inverter provides abundant voltage vector resources for dual three-phase permanentmagnet synchronous motor，which can make predictive current control more accurate. However，more voltagevectors cause the problem of too much calculation. At the same time，the harmonic current of dual three-phase motor...
更多Number of views：4366 Amount of downloads：2110
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ZHANG Hannian，ZHANG Tao
Abstract: The key of stable suspension of bearingless permanent magnet synchronous motor is the closed-loopcontrol of rotor radial position displacement. Usually，the high performance suspension operation of the motor relies on displacement sensor，which destroys the robustness of the motor structure and hinders the lo...
更多Number of views：4183 Amount of downloads：2138
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YIN Jianqiang，WU Xianming，WU Fengzhi，YANG Peihao
Abstract: The sensorless control of PMSM based on control algorithm is a research hotspot in the field ofmotor control. A PMSM sensorless control system based on low-speed pulse and high-frequency stator flux injectionwas proposed，and the traditional stator flux estimator was improved and the high-frequency signal wa...
更多Number of views：4218 Amount of downloads：2241
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ZHENG Weijie, SUN Tianfu, LAI Yueshen, SHANG Yaceng
Abstract: Aiming at the problem that the low-speed sensorless control system of interior permanent magnetsynchronous motor (IPMSM) based on high-frequency voltage signal injection method cannot identify the initialposition of the rotor, which causes the motor to start up difficultly, a starting strategy of IPMSM was ...
更多Number of views：4081 Amount of downloads：1770
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CAO Xinping, YIN Zhonggang, ZHANG Yanping, ZHANG Yanqing
Abstract: Aiming at the problems of chattering and poor observation accuracy of traditional full order slidingmode observer (FSMO), a sensorless control strategy of interior permanent magnet synchronous motor (IPMSM)based on improved full order sliding mode observer was proposed. In this strategy, the quasi-sign func...
更多Number of views：4078 Amount of downloads：1916
