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LIANG Biao，ZHANG Yiming，ZHANG Dong，LI Gen，WANG Xuhong
Abstract: With the increasing demand for geological exploration in complicated terrain in China，thedevelopment of helicopter transient electromagnetic system（HTEM）has been paid more and more attention. A pulse current transmitting circuit with multi-excitation sources was proposed to meet the demand of transmitting ...
更多Number of views：2169 Amount of downloads：1309
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NIU Shengsuo，CHENG Bo，LI Jinbo，LÜ Linfei，FU Xiulai
Abstract: Avoltage disturbance detection method based on mathematical morphological filtering and derivationdq transformation was proposed. Firstly，in order to reduce the interference of pulses，harmonics and other noises in the signals to be detected，a composite morphological filter was constructed based on adaptive...
更多Number of views：1970 Amount of downloads：1466
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GAO Shanxue，YANG Xin，SHEN Wenbing，ZHONG Wei，ZHANG Shuai，WANG Min
Abstract: DC microgrid usually consists of a plurality of power electronic converters with feedback controlconnected to a common DC bus. Although the control loop design of each individual converter has a good stabilitymargin，the interconnection of multiple power and load converters can cause stability and performan...
更多Number of views：2068 Amount of downloads：1392
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DING Qiang，ZHU Jie，JIANG Yingxu
Abstract: Direct-drive electrically excited synchronous motor（EESM）is obtained widespread utilization inwind power generation system due to its advantages of simple construction and low cost. Firstly，a mathematicalmodel of EESM was derived and the direct torque control（DTC）algorithm for EESM was introduced based on ...
更多Number of views：1905 Amount of downloads：1235
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王德明，李英量，贾俊辉，解晨，王语园
Abstract: The conventional overcurrent protection is ineffective in isolating faults in microgrids due to the lowfault current level contributed by distributed generations（DGs）. Because of its high agility and adaptability，themeasured impedance-based protection schemes are considered as common alternatives to detect...
更多Number of views：1966 Amount of downloads：1249
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SHI Shaoqing，ZHANG Leping，ZHANG Bensong，WU Haowen，LIAN Xinkai，DU Shushuai
Abstract: In order to apply the smart meters with load identification technology into real application，a nonintrusive load identification method using Mean-shift clustering algorithm with siamese network framework wasproposed. In this method，the load event was carried out for extracting the features，including active...
更多Number of views：1995 Amount of downloads：1801
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GUO Leilei，ZHU Linqiang，CAO Lingzhi，LI Yanyan，WANG Pengshuai
Abstract: The accurate estimation of rotor angle is an important prerequisite for realizing speed sensorless highperformance vector control of permanent magnet synchronous wind generator. In the speed sensorless control ofpermanent magnet synchronous wind generator based on disturbance observer，the traditional angle...
更多Number of views：2391 Amount of downloads：1495
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ZHANG Ao，DAI Linwang，MA Zhengyang，LI Shaolin，ZHANG Xueguang
Abstract: Doubly-fed wind turbine is easy to produce sub-synchronous oscillation in series compensation grid.Using virtual synchronous control structure to improve inertia and damping for grid may also lead to subsynchronous oscillation risk. In view of the causes of sub-synchronous oscillation，firstly，the double-fe...
更多Number of views：2411 Amount of downloads：1459
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CHENG Jin，PAN Zhixuan，CHENG Haifeng，DAI Mingli，HUANG Minli
Abstract: With the continuous improvement of the penetration rate of wind turbines，in order to suppress thevoltage/frequency fluctuations of the doubly-fed induction generators（DFIGs）after grid-connected due to their own active power output fluctuations，aDFIGinertia support and primary frequencymodulation control ba...
更多Number of views：2450 Amount of downloads：1582
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ZHOU Xuesong，GUO Kairui，MAYoujie，ZHONG Weibao
Abstract: Although the parallel connection of inverters in a microgrid system increases the system capacity，itcreates a circulation path which provides the conditions for the generation of zero-sequence circulating current（ZSCC）. In order to solve the problem of system loss caused by ZSCC，a ZSCC controller was desig...
更多Number of views：2386 Amount of downloads：1420
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LÜ Jiangping，LI Yaguang
Abstract: Recent years，omni-directional wireless power transmission（WPT）technology has attracted moreand more attention as a solution to the limitations of free location and mobility of traditional WPT technology.However，omni-directional WPT is less efficient due to low mutual inductance relative to the transmitter ...
更多Number of views：2223 Amount of downloads：1402
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HE Kun，WANG Can，ZHANG Kan，CHEN Kaiping，ZHU Hanqin，FU Zhiyu，XU Lei
Abstract: In the case of asymmetric faults in high voltage direct current（HVDC） transmission system，modular multilevel converter-battery energy storage system（MMC-BESS）has a longer state of charge（SOC）balancing process，uneven allocation of resources，easy to occur over modulation and other security problems，anew SOC ...
更多Number of views：2329 Amount of downloads：1621
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DING Zancheng，WANG Dajun，LI Wanxiang
Abstract: In view of the problem that the dangerous points in transmission lines affect the stability of powersystem，the technology of identifying and controlling the transmission line dangerous points based on multidimensional perception was studied，which can control the transmission line risk in time，reduce noise ...
更多Number of views：2167 Amount of downloads：1347
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CAOWei，GUI Shicheng，HUANG Ruanming，HE Bilun，QIN Huancheng
Abstract: With the expansion of the interconnection scale of the power system，the impedance ratio of thepower grid increased gradually，thereby the breaking capacity of the circuit breaker was affected by the increasingattenuation time constant of the DC component of the short-circuit current .At present，the periodic...
更多Number of views：2165 Amount of downloads：1396
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ZHANG Feifei，ZHANG Jun，WU Long，WU Xiaohui，XUE Zhanbo
Abstract: In order to solve the problems of false alarm rate and missing alarm rate in the traditional faultdetection method of substation primary equipment，a fault detection method of substation primary equipment based on deep convolution neural network was proposed. The substation primary equipment image and scene...
更多Number of views：2039 Amount of downloads：1243
