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ZHANG Kuangyi，LIU Haitao，MA Bingtai，ZHANG Chengyu
Abstract: There are many fault distributions along the actual distribution network lines，but the existingvoltage sag stochastic assessment methods only consider the uniform fault distribution. According to the differentfault distribution characteristics along the line，a stochastic assessment method of voltage sag wa...
更多Number of views：2643 Amount of downloads：8274
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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：2263 Amount of downloads：8273
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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：5523 Amount of downloads：8271
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HAN Shaohua，MAO Wangqing，GE Xuan，XU Lei，CHEN Ken，LIANG Rui
Abstract：Compared with large photovoltaic systems with isolation transformers，distributed photovoltaicsystems have small power and volume. In order to improve efficiency，non-insulated inverters are often used indesign，but photovoltaic leakage current endangering system safety is also generated. Taking the single-pha...
更多Number of views：1796 Amount of downloads：8258
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MA Zun，CHEN Haoying，DENG Can，CHEN Yong，GUAN Lin
Abstract：The development of modern power systems with wide span，low inertia，and complex structuremakes the frequency stability problem increasingly prominent，and the spatial-temporal distribution characteristicsof frequency are distinct. Taking the actual power grid as the object，the impacts of large-scale new energ...
更多Number of views：2160 Amount of downloads：8247
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GUO Jinzhi，PAN Zijun，YUAN Shaojun，SUN Rongfu，DING Ran， XU Haixiang，WANG Jingran，WANG Longyang
Abstract: The maximum power point tracking（MPPT）technology of the photovoltaic power generationsystem is the great significance to ensure the output efficiency of the photovoltaic power generation system and thestability of the system. An MPPT control algorithm was proposed based on an improved conductance increment...
更多Number of views：4187 Amount of downloads：8246
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XU Junyue，LIU Yi，GUI Jiae
Abstract: Aiming at the problems of three-phase load imbalance，power quality degradation and harmonicdispersion in current electronic power distribution system，a comprehensive power quality control scheme with fastdynamic response and small output harmonic was proposed，which includes comprehensive control mode andco...
更多Number of views：2355 Amount of downloads：8245
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LIU Xiaodong，SUN Lunan，LIU Yawei，GUAN Peng，RONG Xifeng
Abstract: In order to meet the needs of the testing laboratory's task scheduling and process design functions，the new applications were developed based on the existing laboratory information management system，such asscheduling system and process designer. According to the type and priority of the test task，the t...
更多Number of views：5440 Amount of downloads：8241
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FAN Zhenning，SU Qiang，ZHANG Xinmin，ZHAO Changwei，XU Ke
Abstract: The control strategy of flexible multi-state switch（FMS）is a key technical challenge to ensure its highefficiency，reliability and flexibility. In order to solve the problems that the parameter design of proportional resonant （PR）controller is complicated and is greatly affected by grid frequency disturbanc...
更多Number of views：5256 Amount of downloads：8236
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FAN Peilin，HU Pengtao，XUE Jianli，LIU Zheng，HUANG Jinming
Abstract：Voltage source converter （VSC） is prone to low-frequency oscillations of 100~101Hz whenconnected to weak AC power grids. The mechanism of improving the control strategy of VSC on the traditionalinverter side to suppress low-frequency oscillations（LFO）in the AC power grid is to transfer the oscillations from...
更多Number of views：1755 Amount of downloads：8234
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ZHANG Chunxiang，LI Xin，SUN Ning
Abstract：DC high current comprehensive characteristic test device is used to detect the released characteristicsof DC low-voltage electrical overcurrent protection electrical device，which is used in low-voltage electricalindustry for DC products for long time delay，short time delay，instantaneous tripping test and sh...
更多Number of views：2311 Amount of downloads：8231
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DAI Feng，CHEN Xuan，WANG Lixian，MA Hongzhong
Abstract: Partial discharge fault diagnosis and location of gas insulated metal enclosed transmission line（GIL）is of great significance for its internal insulation protection. Because GIL is fully enclosed structure，theexisting external detection method is not sensitive to the internal defect detection，so it is unab...
更多Number of views：3858 Amount of downloads：8231
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MAO Shufan
Abstract: An automatic compensation method was presented based on adaptive capacitance regulationtechnology and the principle of controlling capacitor charging and discharging voltage. Based on the turn off ability of the self-turn off device，a switch circuit composed of two self-turning off devices connected in rev...
更多Number of views：5738 Amount of downloads：8228
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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：2191 Amount of downloads：8224
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JIANG Jian，XU Fengliang，WANG Fayi
Abstract：Reasonable planning of the active distribution network is an important part to improve the windenergy accommodation capability，however，the overuse of the wind power output and load timing characteristicsincrease the difficulty of model solving and have adverse effects on the optimal results. The Latin hyper...
更多Number of views：2231 Amount of downloads：8217
