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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：1356 Amount of downloads：2355
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QU Chenming，GUO Kunli，BAI Yang，LI Hang，ZHU Tinghua，MA Peng
Abstract：Considering the influence of grid voltage background harmonics in weak current networks，reverseharmonic peaks appear in the grid-connected current under weighted average current control（WACC），making itimpossible for the system to achieve zero pole cancellation and thus affecting the stability of the grid-co...
更多Number of views：1354 Amount of downloads：3269
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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：1354 Amount of downloads：2224
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JIAO Jinghai，LI Jie
Abstract: To solve the problem of low identification accuracy of partial discharge（PD）for electric multipleunits ethylene propylene rubber（EPR）cable terminal defects，an on-board cable terminal defect identificationmethod based on improved residual network was proposed. Firstly，cable terminals with four typical insul...
更多Number of views：1353 Amount of downloads：2417
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ZOU Yingdong，WANG Fengjun，ZHOU Yu
Abstract：This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators（SDDPMWG）. Firstly，analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
更多Number of views：1348 Amount of downloads：3451
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ZHANG Junkun，LEI Ertao，JIN Li，MA Kai，XIA Chenyang，WANG Xirui
Abstract：The rapid development of modern power electronics technology promotes the insulated gate bipolartransistor（IGBT）wide range of applications in the AC motor drive，inverter，switching power supply and newenergy industry. In the application process of IGBT，due to the complex and varied circuit topology and syste...
更多Number of views：1347 Amount of downloads：2402
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TONG Xin，SONG Guobing，ZHANG Zhihua，WANG Junfeng，LEI Zhirong
Abstract: Due to the change of the ground parameters of the distribution network after the single-phasegrounding fault，the traditional active arc suppression method based on the ground parameters in the normaloperation state has a deviation between the compensation current reference value and the actual value. Incons...
更多Number of views：1345 Amount of downloads：2490
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WANG Hao，LIU Naisuo，MENG Chao，FAN Ronggui，GONG Junlin，GAO Lianyan
Abstract：In order to solve the problem that the electrical cabinet of the original production and injectionsystem in the same well has a low intelligence level and cannot realize remote monitoring，diagnosis，restart andmaintenance through the network，an intelligent control software for production and injection in the...
更多Number of views：1343 Amount of downloads：4617
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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：1343 Amount of downloads：2107
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LOU Bin，HAI Ying
Abstract：Harmonic loss is one of the main causes of safety accidents in excitation transformers. If the lossvalue is too large，it can easily affect normal substation and transmission. Therefore，a method based on waveletpacket decomposition and reconstruction was proposed to calculate the additional loss of rectifica...
更多Number of views：1341 Amount of downloads：2346
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HE Kuiyuan，YU Jiangtao，ZHU Qi，CAI Hui，GUO Qian，WEI Dong
Abstract：Aiming at the adverse effects of large-scale electric vehicle charging load on the distributionnetwork，based on vehicle to grid（V2G）technology，a V2G reactive dispatching strategy combining the nondominated sorting genetic algorithm and the local optimization of global objectives algorithm was proposed. The ...
更多Number of views：1340 Amount of downloads：3380
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PAN Lingling，ZHUANG Weijin，ZHAO Qi，TIAN Jiang
Abstract: In the background of the new power system，the importance of demand-side dispatchable resourcesof the grid for system stability is increasing. As an important dispatchable load resource，an accurate assessment ofelectric vehicle（EV）dispatchable potential can effectively improve the safety and stability of th...
更多Number of views：1339 Amount of downloads：2550
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YUAN Shaowei，LI Yuxiang，JIANG Jie，ZHANG Bei，ZHU Qing
Abstract：In order to solve the problems of intermittent and fluctuating distributed energy，took three majorphysical entities in the demand response project，namely system operator，load aggregator and load end user，as the research object，the transactions between supply and demand within the power system composed by the...
更多Number of views：1336 Amount of downloads：2325
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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：1336 Amount of downloads：2192
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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：1336 Amount of downloads：2158
