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CHEN Dongdong，ZHANG Shengqi，XIAO Long
Abstract：Due to the wide control bandwidth of the shunt active power filter（SAPF），the resonance problemof the LCL output filter has become a key problem of the SAPF. To solve the resonance problem of the LCL filter，anovel damping method based on active damping circuit was proposed to achieve the damping effect witho...
更多Number of views：557 Amount of downloads：416
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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：603 Amount of downloads：415
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YANG Yidong
Abstract：In the grid load control and planning of distribution network，in order to optimize the grid structureof distribution network，such as line loss，power supply quality and load，a grid load control and planningtechnology based on differential evolution algorithm was proposed. For all kinds of power generation de...
更多Number of views：439 Amount of downloads：413
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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：507 Amount of downloads：413
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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：472 Amount of downloads：408
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LI Ning，LIU Ming，ZHANG Changjie，ZHANG Chenglin
Abstract：At present，the traditional passive filter in on-board charger（OBC） has poor low-frequencyperformance，an active feedback loop was added to the traditional on-board charger passive filter，a design method of on-board charger electromagnetic interference（EMI）hybrid filter based on current sensing and current in...
更多Number of views：538 Amount of downloads：408
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ZHANG Wei
Abstract：The multi-source monitoring data of switchgear contains rich equipment operating statusinformation，and analyzing it can achieve switchgear fault diagnosis. A fault diagnosis method for switchgear basedon SMOTE-SSA-CNN was proposed. Firstly，based on monitoring data such as switchgear voltage，current，andtempe...
更多Number of views：292 Amount of downloads：407
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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：285 Amount of downloads：404
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DU Jifei，WANG Yang，WANG Li，LIU Haoruo，MU Yunfei，SUN Qiang
Abstract：The primary side feedback can stabilize the output voltage，and improve the service life of theequipment without using the secondary winding detection error signal. The topology of active filter and theimproved method of primary side feedback were adopted. The performance of active EMI filter topologies wasa...
更多Number of views：416 Amount of downloads：404
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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：318 Amount of downloads：403
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LI Mingke，ZHONG Jinxing，XUE Yan，XIONG Xiaosheng，LIU Junwei，DENG Lina
Abstract: In order to effectively manage the grid short-circuit current overrun problem，optimization decisionmaking evaluation method of short-circuit current limitation scheme based on hybrid decision model considering asymmetric closeness was designed. Considering the relevant influence of the short-circuit curren...
更多Number of views：584 Amount of downloads：403
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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：579 Amount of downloads：402
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PENG Fei，TIAN Xu，LIU Fei，XU Decao，FANG Shiwen，TIAN Xu
Abstract：The integration of large-scale wind power，photovoltaic and other renewable energy resources forthe power system will greatly change the power supply characteristics，reducing the inertia of power system andthreatening the stability of transient frequency. The virtual synchronous generator（VSG）technology can ...
更多Number of views：376 Amount of downloads：400
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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：632 Amount of downloads：395
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ZHANG Junlin，NI Lianghua，SUN Jia，LÜ Ganyun，ZHANG Jinhua
Abstract：In order to intervale evaluate saddle node bifurcation points（SNB）in a power system during loadgrowth quickly and accurately，a quadratic approximation method to directly calculate the power system voltagecollapse point of was proposed. Based on the approximate quadratic PV-curve of output PQ nodes in the sy...
更多Number of views：632 Amount of downloads：393
