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ZHANG Xudong，WANG Yangyang，LI Xiaolong，LÜ Jin
Abstract：Aiming at the problem that the ripple content of current and voltage in cycloconverter speed controlsystem is large and the ripple period is time-varying，the real-time sampling value is not suited for feeding back tothe speed control system directly，a variable period mean sampling algorithm was proposed. Fi...
更多Number of views：546 Amount of downloads：495
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LEI Aoyu ，LI Jun ，MEI Yong ，TONG Ning ，WANG Yu ，WU Wei
Abstract：The stability analysis of power system transient voltage，power angle，and frequency is often basedon short-time-scale electromechanical transient simulation，which requires a relatively accurate large-scalesimulation model，which not only has low simulation efficiency but also takes a long time，thus giving ris...
更多Number of views：365 Amount of downloads：494
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WANG Yubo，AN Yang，QIU Shuming，GAO Zhuoxuan，SUN Furun
Abstract：Inverter products have been developing towards higher power density and more compact structure.To enhance the power density of inverter systems within a limited structural space，several prototypes need to bemade and a large number of experiments conducted during the research and development process. To shor...
更多Number of views：786 Amount of downloads：494
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SUN Jia，HAN Shuntian，NI Lianghua，LÜ Ganyun
Abstract：While a large number of distributed generator（DG）keep penetrating into distribution networks，the problems such as voltage violation and network power congestion become more and more serious. Soft open point （SOP）can quickly achieve flexible interconnection and accurate power flow control，effectively address...
更多Number of views：440 Amount of downloads：493
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LIU Hui，SU Jianhui，ZHANG Jian，LIU Shuo，SHI Yong，ZHANG Jie
Abstract：Wireless power transfer（WPT）load voltage，current and other state information need to be sent tothe original side for closed-loop control and monitoring processing，the secondary side to the original side of thecommunication is very important. Firstly，the topology and working principle of capacitive modulated...
更多Number of views：667 Amount of downloads：493
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WU Bing，WANG Jianliang
Abstract：The common-mode equivalent circuit model of the motor is the basis for analyzing the electricerosion of bearings，especially for analyzing the technical problems and experimental phenomena of shaft voltageand shaft current，among which the centralized equivalent model is an important calculation basis for the...
更多Number of views：393 Amount of downloads：492
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FENG Xiang，YU Yue，LI Cheng，ZHENG Wei，LIU Jianhua
Abstract：The traditional ultra high speed permanent magnet synchronous motor（PMSM）driver uses PWMequivalent sine voltage output，which leads to severe motor heating due to large harmonics，and it cannot be used in situations where the input voltage changes over a large range，such as fuel cells. To reduce the heat gene...
更多Number of views：583 Amount of downloads：488
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XU Shizhou，CHANG Jinhai，FAN Jingsheng，JIA Xinxin
Abstract：A method for establishing edge triggered pulse control switch state time was proposed to address thedivergence of floating capacitor voltage and DC capacitor midpoint voltage in a 5-level active neutral point clamped（ANPC-5L）inverter using the space vector pulse width（SVPWM）algorithm in the g-h coordinate s...
更多Number of views：529 Amount of downloads：485
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LI Hongqiang，LU Guangming，ZHOU Lei，WEI Yawei，ZHANG Hanhua，MA Jing
Abstract: In order to improve the inertia support ability of grid-connected converter of new energy based onDC capacitor energy virtual inertia control to the power system，an adaptive virtual inertia control method based onlinear quadratic regulator（LQR）was proposed. On the basis of analyzing the dynamic characteris...
更多Number of views：714 Amount of downloads：484
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SHI Xuelei
Abstract：Under the power grid dispatch mode of "source follows load"，different AC power supply modes arerequired in the market. To meet market demand，an uninterruptible power supply（UPS）system compatible withvarious AC power supply modes was designed. The modes of the system were selected by switching devices.Accord...
更多Number of views：661 Amount of downloads：479
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WU Yihao，ZHAO Shiwei，ZHOU Jie，XIAO Chaoren
Abstract：In order to solve the problem of large peak-to-peak inductor currents in dual active bridge converterswith mismatched input and output voltages，a four-degree-of-freedom modulation（FDFM）strategy was proposedby combining symmetric duty cycle modulation and asymmetric duty cycle modulation. By analyzing the op...
更多Number of views：372 Amount of downloads：478
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WANG Xuli，XU Jiayin，SHEN Yuming，LI Kun，FENG Peiru，JIANG Guifen
Abstract：In order to make full use of the frequency modulation capability of the wind turbines，consideringthat a conventional wind-power coordinated frequency control strategy not only results in some fluctuations in thefrequency of the system，but also requires high energy storage capacity and poor economic efficien...
更多Number of views：290 Amount of downloads：476
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JIANG Yehai，JIAO Hao，CHEN Zhi，MA Jiayang ，LI Bin
Abstract：To improve the quality of power distribution network parameters，an abnormal parameteridentification and localization method for distribution networks based on smart meter measurements was proposed.The method transformed the nonlinear identification equation solving problem in traditional identificationalgor...
更多Number of views：622 Amount of downloads：476
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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：566 Amount of downloads：476
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CHEN Xiaoru，HUANG Longyi，YANG Mingjia，LAI Shengjie，CHI Zibin，XIA Chengjun
Abstract：In view of the lack of flexibility in the input and exit of the current metal sheath loop suppressiondevice for high voltage cables，the problems such as excessive induced voltage of the sheath and excessive powerloss were not considered when determining the suppression impedance value，a loop suppression dev...
更多Number of views：556 Amount of downloads：474
