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LI Qinzhao，ZHAO Xuemin
Abstract: When the microgrid is operating in island mode，the cascaded H-bridge（CHB）converter as aninterface device may need to be configured with a non-sinusoidal reference wave of pulse width modulation（PWM）when implementing auxiliary functions such as negative sequence compensation. In order to avoid overmodulatio...
更多Number of views：2809 Amount of downloads：1398
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CHEN Guangzhu，YANG Yuxin，ZHANG Yanan，LÜ Peihe，WANG Jianquan
Abstract: The new version of the national standard GB/T 15576—2020《Low-voltage reactive powercompensation assemblies》was released on November 19，2020，and has been implemented on June 1，2021，replacing the old standard. Through comparative analysis of the content of the new and old standards and key tests，the test met...
更多Number of views：2808 Amount of downloads：1423
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TIAN Kai，WANG Ziman，CHU Zilin，YU Zhibin，YUAN Yuan，SONG Peng
Abstract: A method to extract the equivalent thermal resistance parameters of double-sided water-cooledheatsink was proposed. Based on this method，the real-time calculation of junction temperature and overtemperature protection of integrated gate commutation transistor（IGCT）power device were implemented by the water...
更多Number of views：2929 Amount of downloads：1341
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WANG Shijun，HAO Quan，LI Wenlong
Abstract: In view of the problems of unstable operation waveforms，high output current stress andinstantaneous fluctuation difference of load in the current sharing control of two-way DC-DC converter in flexiblesubstation，a method of independent current sharing control of two-way DC-DC converter in flexible substatio...
更多Number of views：2618 Amount of downloads：1209
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CHEN Jinyang，LEI Yong，CAO Xiaoyan，HE Xin，ZHU Xiaobo
Abstract: The operation of 5G communication base stations in remote areas requires a lot of power. The basestation power supply system composed of wind and solar new energy can well solve the problem of difficult accessto the power grid in remote areas. The selection of the component capacity of the new energy base ...
更多Number of views：2550 Amount of downloads：1268
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LI Chasen，WANG Daihua，ZHANG Qiang，TANG Hong
Abstract: The crankshaft is an important component that determines the life of an internal combustion engine.It bears compound alternating stress for a long time，so it is easy to produce fatigue failure. Aiming at the shortageof crankshaft dynamic stress testing methods，a stress testing system with long endurance an...
更多Number of views：2588 Amount of downloads：1167
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ZHANG Dewang，CHEN Zhigeng，ZHANG Zhichao，ZHOU Yu
Abstract: Traditional point prediction is difficult to analyze the randomness and uncertainty of wind powerinadequately. Aiming at the shortcomings of point prediction，an interval prediction model based on improvedwhale optimization algorithm and fast learning network（IWOA-FLN）was proposed. Firstly，the convergencesp...
更多Number of views：2622 Amount of downloads：1392
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WU Weikun，GONG Shiying，ZHENG Yaohua，SHAN Chao，DONG Chuanyou
Abstract: In order to intelligently identify crosslinked polyethylene（XLPE）cable faults in high noiseenvironment，a method of XLPE cable fault identification based on deep residual shrinkage network was proposed.In this method，the soft threshold was embedded into the deep structure of the network as a nonlineartransf...
更多Number of views：2586 Amount of downloads：1148
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LU Yibing，LI Feng，ZHAO Wenbin，LU Wu，HUO Simin
Abstract: A power angle control method for DC system with doubly-fed induction generator based on air gapflux vector regulation was presented，which could reveal the relationship between the air gap EMF vector angle andthe stator output power，and could be used to directly control the stator output power. In the propos...
更多Number of views：3292 Amount of downloads：1636
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ZHOU Xuesong，XIE Bingjie，MAYoujie，LIU Qian
Abstract: To effectively solve the problem of stable control for DC-bus voltage in the independent photovoltaicenergy storage system under multi-source disturbances，a bidirectional DC-DC converter control scheme based onimproved linear active disturbance rejection control（LADRC）was proposed. The linearized small sig...
更多Number of views：3286 Amount of downloads：1513
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WANG Xing，TAN Peixiao，CHENG Zhijiang，MAWanqing，TIAN Bo
Abstract: Retired power batteries have poor parameter consistency，when they are used for energy storageafter series and parallel connections，the barrel effect is obvious and the failure rate is high. So the improved modular multilevel H-bridge converter（MMHC）distributed energy storage based on modular multilevel con...
更多Number of views：3061 Amount of downloads：1643
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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：3322 Amount of downloads：1416
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LI Chengyuan，ZHANG Chao，LI Zhe，LIU Bochang，GAO Jing，JIN Pengfei
Abstract: Due to the small capacity and weak regulation energy of island grid，it is very easy to cause systemcollapse. When the isolated grid collapses，it is necessary to establish the grid through its internal black start powersupply without relying on the external public grid. In recent years，with the rapid develo...
更多Number of views：3184 Amount of downloads：1535
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TANG Jiayuan，ZHAO Wenbin，LU Wu，GAO Yuan
Abstract: Under the electric power market environment，the key to achieve the joint operation of virtual powerplants lies in the profit distribution among the internal multi-subjects. To solve the impact of the final profitdistribution，which is caused by the uncertainty of the clean energy output of each main body in...
更多Number of views：3183 Amount of downloads：1351
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ZHOU Ye，CUI Shuangxi，FAN Xiaochao，WANG Weiqing，WU Binbing
Abstract: When the grid voltage is unbalanced，the negative sequence current will seriously affect the qualityof the output power of the grid-connected inverter. The detection speed of the grid information is one of the mainfactors of negative sequence current compensation. Therefore，a control strategy without phase-...
更多Number of views：3143 Amount of downloads：1410
