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WANG Haiyan，WU Ziran，QIAN Qi，XIA Chuyang，XU Haibo，LIN Zhenquan
Abstract: In order to improve the short-circuit breaking capacity of solid-state circuit breaker（SSCB）in DCsystem，a multi-objective optimization method that explores component parameters to achieve optimal breakingcharacteristics was proposed. A detailed analysis of the breaking process of the SSCB during a short-ci...
更多Number of views：595 Amount of downloads：515
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YANG Xiaochu，WANG Guanwen，LUO Guogan，XU Shipeng，ZHANG Dingwang
Abstract: The composition of the double-fed induction generator（DFIG）is complex，and its operation andmaintenance are difficult. Due to the relatively complex electromagnetic transient characteristics of the fault，theextraction quality directly affects the reliability of the fault detection results of the DFIG. Aimin...
更多Number of views：601 Amount of downloads：509
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ZHOU Jinwei，DING Dawei，JIANG Xuexiang，REN Zhaoting，LI Xizhi
Abstract：Maximum torque per ampere（MTPA）control can effectively improve system efficiency throughreducing copper loss，which is suitable for air conditioning permanent magnet compressor system. However，due to the inverter non-ideal characteristics，the tracking accuracy of the optimal current vector angle decreases. T...
更多Number of views：823 Amount of downloads：507
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HAO Liangshou，XIA Kepeng，CHEN Xiaoping，JIANG Hai，ZHU Qi，WANG Di
Abstract: The conventional grid voltage observation methods of flexible DC power converters need to designmultiple observers，and use multiple filters，which are also affected by DC-offset. So，a grid voltage observationmethod of flexible DC power converters based on single sliding mode observer and single third-order ...
更多Number of views：614 Amount of downloads：506
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GUO Jiahao，YANG Xiong，FANG Xin，LI Guanfei
Abstract: With the rapid development of primary and secondary fusion equipment，the detection efficiency ofthe traditional primary and secondary equipment testing method is very low，and it is no longer suitable for the new fusion switch equipment testing. In view of this，an integrated testing scheme for primary and s...
更多Number of views：490 Amount of downloads：506
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WU Zhiheng，LIU Aimin
Abstract: The motor actuator used in circuit breaker has the advantages of simple structure，small dispersal ofaction and strong controllability，which provides the possibility for the switch contact of circuit breaker to followthe preset reference curve. The traditional control method can not adjust the parameters ac...
更多Number of views：686 Amount of downloads：503
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JIN Dan，ZHI Jing，XIN Shijin，YANG Jian，HUANG Yafei，XU Qing
Abstract：Voltage source converter（VSC）connected to weak AC power grid has the risk of small disturbanceinstability. Under the traditional control strategy，VSC has to reduce output power to maintain stable operation. Inorder to improve the stability of the weak grid connected VSC system，first established a universal ...
更多Number of views：459 Amount of downloads：500
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ZHANG Guoqiang，LI Rundong，HUANG Yuanming，DING Dawei，WANG Gaolin，XU Dianguo
Abstract: Supply interruption may occur during the operation of permanent magnet synchronous motor（PMSM）in some special applications and it needs to be restarted in the rotating state which is called flying start，the accurate initial position/speed observation is the foundation of flying start. Aiming at the problem...
更多Number of views：941 Amount of downloads：500
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DONG Min，LIU Kezhen，ZHAO Qingli，CHEN Leidan，YAO Yue，ZHAO Xiong
Abstract: Under the "dual carbon" goal，the electric energy systems need to gradually develop towards theway of energy saving and low carbon. The integrated energy system（IES）is an important measure to solve energyand environmental protection problems. At present，the research on IES mainly focuses on distributed ener...
更多Number of views：621 Amount of downloads：499
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WANG Xuming，LUO Cheng，XIONG Zhi，YANG Kai，XU Zhijie，LI Yinbin
Abstract：In response to the complex working environment of pumped storage energy units，wheredisturbances such as temperature variations are prominent，and considering the insufficient control precision oftraditional vector control for brushless doubly-fed machine（BDFM），a study was conducted on a control strategybased...
更多Number of views：686 Amount of downloads：496
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SUN Tao，WANG Tao
Abstract: The semi-bridgeless dual Boost power factor correction（PFC）circuit can obtain higher conversionefficiency without increasing common mode noise，but the return current of the input AC terminal producesadditional losses on the introduced diodes，which reduces the conversion efficiency. The replacement of diode...
更多Number of views：628 Amount of downloads：493
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KE Ting，TIAN Songlin，ZHOU Hai
Abstract：In order to solve the problem of low accuracy of small substation fault diagnosis，a small substationfault diagnosis model based on cooperative game and cloud model was proposed. By analyzing the characteristicsand causes of faults，the diagnosis index system was established. Entropy method and expert weighti...
更多Number of views：433 Amount of downloads：493
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ZHENG Junfeng，HUANG Jiyuan，CHEN Yuanyang，HU Xiangwei
Abstract: Aiming at the frequent voltage sag problem in power quality problems，a multifunctional voltage sagtreatment equipment was developed for user-side voltage sag treatment. Based on the modeling analysis of thesystem，the control algorithm of the system under grid-connected and off-grid compensation states and ...
更多Number of views：510 Amount of downloads：493
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ZHANG Di，HUANG Lu，CUI Jing，SONG Zhiwei
Abstract: The AC voltage sensors are used to measure the grid voltage，which brings high hardware cost，difficult installation and low reliability. In order to realize that grid voltage sensors are not necessary，virtual fluxwas introducted to model prediction power control algorithm for cascaded H-bridge rectifier. Th...
更多Number of views：656 Amount of downloads：492
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CHEN Kun，SUN Kaiyuan，LIN Lin，WANG Meng，ZHENG Jiehui，LI Zhigang
Abstract: With the massive access of renewable energy sources and pluralistic load，it is bi-directionalbeneficial to update the distribution network topology. It can not only promote the consumption of renewableenergy and the satisfaction of new load demands，but also improve the rationality of urban distribution net...
更多Number of views：564 Amount of downloads：492
