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YANG He，CHEN Zhaoyu，ZHANG Jinhua，XU Jing，WANG Jingpeng，ZHU Shichang
Abstract：In response to the issues of large volume，high cost，and complex control algorithms associated withvoltage regulation equipment in new energy distributed power distribution areas，a two-stage voltage regulationcircuit topology based on a DC-link capacitor-free structure was proposed. Based on this topology，a ...
更多Number of views：1511 Amount of downloads：8328
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CAO Dayou，LÜ Junmu，BAI Yansong，LI Guorong，ZHOU Yan
Abstract：In order to reduce the carbon emissions of large ships，photovoltaic（PV）power generationtechnology began to be applied to ship power systems. However，due to the limited capacity，low inertia and largeload difference of the ship power system，the traditional virtual synchronous generator（VSG）control strategy ca...
更多Number of views：1810 Amount of downloads：8326
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LIU Dong
Abstract: Focus on the stator winding insulation and voltage oscillation of variable frequency motor，thetransition process of the pulse voltage output by the frequency converter in the transmission path of stator windings，frequency conversion cables，reactors，etc was analyzed，the voltage equivalent mathematical model...
更多Number of views：2494 Amount of downloads：8297
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ZHANG Chunli，LIU Hongwen，FANG Pengxing，CHAI Chenchao，ZHANG Wenqiong
Abstract：Incidents such as the burning of electromagnetic voltage transformers（PT），damage to primaryharmonic suppressors，and fuse tripping occur frequently in low and medium voltage distribution systems due toferroresonance，severely affecting the safe and stable operation of the system. Therefore，through theoretical...
更多Number of views：2380 Amount of downloads：8262
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DAI Yemin，LI Yukun，LIN Shunfu，BIAN Xiaoyan，LI Dongdong
Abstract: With the wide application of new energy grid connection technology，a large number of powerelectronic devices are connected to the power grid，and the power quality is affected by harmonic interaction. Aiming at the harmonic interaction problem of multi-inverter grid-connected system，the multi-input and mult...
更多Number of views：4495 Amount of downloads：8251
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GU Jiming，SONG Yunting，LIU Xinyu，ZHU Shaoxuan，LEI Yu，ZHANG Tongzun
Abstract：Under the dual carbon background of AC and DC hybrid power grids have the new feature of"strong HVDC and weak AC system" and power electronization，in order to effectively reduce the risk of largescalepower outages in power grid，it is necessary to build a secure and reliable comprehensive defense system toen...
更多Number of views：2988 Amount of downloads：8225
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WAN Shaoqi，WANG Bo，GUAN Wenqing，CHEN Jingbo，LÜ Congxin，DONG Haiying
Abstract：The traditional control of electromechanical actuator in aviation electromechanical servo systemmostly adopts two-level inverter and PID control，which can not achieve higher precision control of permanentmagnet synchronous motor. In view of the above problems and the difficulty of space vector modulation al...
更多Number of views：2161 Amount of downloads：8206
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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：5894 Amount of downloads：8188
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HE Long，MA Jincai，ZHU Yongming
Abstract：The contact electrical contact fault of gas insulated switchgear（GIS）will affect its electricalperformance. A multi-physics coupling model of GIS contact vibration was first established to address the difficultyin diagnosing contact faults. An experimental platform for high-current detection of GIS was buil...
更多Number of views：1020 Amount of downloads：8186
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LONG Zhengyu，WANG Xuhong，FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning，painting，maintenance and other operations，therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency，a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
更多Number of views：2698 Amount of downloads：8172
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LI Lingxin，JIAO Yuping，SUN Jiacheng，DENG Fujin，ZHANG Qi，REN Biying
Abstract: High voltage converter is often used in high voltage direct current（HVDC）transmission system tocontrol power supply nearby at high potential. However，the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem，a hig...
更多Number of views：3303 Amount of downloads：8159
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WU Haoting，LIN Song，XIAO Feng，KE Lingqiang
Abstract: The research of virtual machine in substation plays an important role in many fields. In view of thelow maintenance efficiency of virtual machine substation，a virtual machine substation maintenance system based on virtual reality（VR）technology was designed. Using VR technology，the three-dimensional operati...
更多Number of views：3351 Amount of downloads：8117
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MAO Fang，MIAO Xinzhao，LIANG Qianyuan，TANG Fangwen
Abstract：Compared to partial life cycle assessment，the full life cycle assessment is more complex anduncertain，with the difficulty of comprehensively considering carbon emissions and their multiple influencingfactors at each stage，resulting in fuzzy assessment boundaries and dynamic repetition of the process. To thi...
更多Number of views：2299 Amount of downloads：8100
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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：4342 Amount of downloads：8088
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WANG Fenglian，WEI Zhengyi，ZHOU Mingzhu，CAO Yichang，HAO Yangyang，DING Xinping
Abstract: Aiming at the deficiency in boost capacity of the traditional booster circuit，a new type of coupledinductance high-gain DC-DC converter（Fibonacci switch capacitor-Y sources DC-DC converter，FSCYS）was proposed. Using sliding mode variable structure control with superior dynamic response performance and robus...
更多Number of views：4641 Amount of downloads：8060
