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MA Tao，XIAO Zhiyun，ZHANG Yonghong，DAI Zehui，WANG Zhiqiang
Abstract: In order to improve the reliability of LCL-filtered grid-connected three-phase inverter when using asliding mode controller，a novel sliding mode control strategy with less sensors in the abc natural frame was designed.Firstly，the sliding surface functions of phase a and phase b in the abc natural frame wer...
更多Number of views：4459 Amount of downloads：4080
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LIU Tao，CAI Xu，SUN Guoqi，WEI Xiaobin，CAO Yunfeng，ZHANG Lingyan
Abstract: As traditional condenser is replaced by static var generator（SVG），the dynamic reactive powercompensation can be provided by SVG. However，compared with traditional condenser，SVG lacks rotational inertia.Traditional research of SVG mainly focused on reactive power compensation and fault ride-through，and ther...
更多Number of views：4450 Amount of downloads：5438
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FU Yu，LI Tie
Abstract: The microgrid is essentially an active distribution network，which is a combination of the distributed generation（DG）system and different loads at the distribution network voltage level. By analyzing factors such as safety and reliability，energy conservation and environmental protection in the microgrid，and...
更多Number of views：4447 Amount of downloads：3988
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DONG Yongle，ZHANG Jiang，ZHANG Lifang，ZHANG Qi
Abstract: In view of the increasing factors of power demand in our country，and the low efficiency of traditionalstatic model and adjustment mode of distribution network based on artificial experience，which can not meet thepractical needs of high-level applications such as refined line loss of distribution network. I...
更多Number of views：4443 Amount of downloads：4026
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LIU Chunhui，ZHANG Zheng，FAN Hongzhen，MOU Huilong，HUANG Cunkuan，YUAN Fang
Abstract: Multi-energy complementary generation operation had become a new direction to improve theefficiency of new energy utilization，and it is particularly important to analyze the characteristics of multi-energycomplementary generation. According to the operation characteristics of multi-energy complementary gen...
更多Number of views：4430 Amount of downloads：3617
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LU Hai，ZHANG Xudong，DANG Junpeng，GUO Li，LIU Rui
Abstract: A 2-stage three-level power conversion system（PCS）was studied，in which the 3-level T-type 3-leg3-phase 4-wire（3LT23L3P4W）topology was adopted as AC/DC part while the 3-level Buck/Boost topology wasutilized as DC/DC interface. To address the neutral point potential（NPP）unbalance of the PCS，firstly，with thea...
更多Number of views：4430 Amount of downloads：4118
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ZHAO Kuanxiang，YOU Jiawei，LIU Hongxun，LING Yuesheng，TIAN Rui
Abstract: The electrolytic capacitor is used as the energy storage element in the traditional LED power supply.The life of electrolytic capacitor is short which limits the life of LED power supply. In order to improve the servicelife of the power supply，a single-stage low switch stress structure was proposed on the ...
更多Number of views：4426 Amount of downloads：3609
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ZHANG Tingting，ZHAO Jinbin，DENG Ping，QU Keqing，ZHANG Junwei
Abstract: Aiming at the problems of low input voltage and high demand on driving voltage frequency andamplitude of the traffic sign power supply using smart electroluminescent（S.E.L）technology，a high rise ratio highfrequency inverter drive circuit based on the cascade connection of the Boost circuit with soft switch...
更多Number of views：4406 Amount of downloads：4474
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SHEN Gaobo，LIU Xu
Abstract: A variable flux reluctance machine（VFRM）control system based on the excitation current controlof a single leg was proposed. Compared with the VFRM control system based on the H-bridge which controlling theexcitation current，fewer switch devices were used，in which the cost of the inverter was reduced while ...
更多Number of views：4392 Amount of downloads：3945
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REN Hao，QIU Xiaoyan，ZHANG Zhirong，SUN Xu，ZHANG Mingke
Abstract: With the development of electric vehicle（EV），there are a large number of EV charging load in thepower grid. Because of its unique advantages，AC/DC microgrid is more convenient for the access of AC slowcharging pile and DC fast charging pile. However，large-scale EVs integration will bring impact to the powe...
更多Number of views：4385 Amount of downloads：3604
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WANG Baihuai，WUTong，ZHANGWeizheng，FANG Xuezhen，LIYingzhi
Abstract: In order to enhance the stability of power grid operation and improve power supply capacity of powergrid，a power supply capacity simulation method based on harmonic reactive compensation was proposed. Theharmonic data in the power network equipment was calculated through DIgSILENT/PowerFactory software，inc...
更多Number of views：4372 Amount of downloads：3849
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YAN Hao，BA Sang，GU Yi
Abstract: Insulation failure can cause motor turn-to-turn，phase-to-ground and ground-to-ground faults，ranging from equipment downtime，or endangering personal safety，resulting in catastrophic consequences. In order to be able to carry out online sensitive monitoring of the deterioration state in the early stage of tu...
更多Number of views：4363 Amount of downloads：3771
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FU Lulu，ZHAO Hong
Abstract: The classical model prediction algorithm of three-level grid-connected converter has manydisadvantages，such as large computation，unfixed switching frequency and difficulty in selecting weight factors，which limit its development in grid-connected converter field. To solve above problems，a modified control a...
更多Number of views：4359 Amount of downloads：4314
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TAN Xiaomeng，LIU Jichun
Abstract: New energy with intermittent and uncertainty would seriously impact the operation reliability，especially in isolated multi-energy complementary generation system，and make the system face certain risks. Thus，reasonable system reserve is the key to avoid large risk loss in isolated island power system under ...
更多Number of views：4350 Amount of downloads：3717
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WANG Haijun，WANG Lei
Abstract: Aiming at the problem of active power dispatch and control in the grid-connected power system oflarge-scale wind power clusters（WPC）of distributed wind farms，a hierarchical model predictive control（HMPC）strategy based on dynamic power dispatch was proposed. Firstly，the dispatch framework was divided into f...
更多Number of views：4341 Amount of downloads：4030
