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ZHANG Jinbo，YAN Lei，SHI Jian，HUANG Xiaoyu，YANG Dishan，YAN Tongyu
Abstract: A large number of voltage fluctuations will occur in the grounding process of optical storage DCmicrogrid，which has a bad impact on the stability of microgrid power signal. Due to the poor voltage disturbancesignal capture ability of the present optical storage DC microgrid grounding anti-interference tech...
更多Number of views：1723 Amount of downloads：933
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ZHENG Xiaoyong，DENG Jinxiang，HU Ren，WANG Hong
Abstract: Brushless DC motor has been widely used in the market because of its long life，high reliability andhigh torque. The sensorless control method can avoid a series of problems caused by the position sensor and furtherexpand the application of the brushless DC motor. Compared with the traditional sensorless co...
更多Number of views：2289 Amount of downloads：1353
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GUO Peijian，JI Shiqing，LIU Juan，HE Jinwei，BAI Yang，GUO Yan
Abstract: Due to the special characteristics of the structure and load of the traction power supply system，serious imbalances can occur in the three-phase power supply system，which restricts the development of highspeed，heavy-haul railways. The structure of a single-three-phase combined co-phase power supply system ...
更多Number of views：1940 Amount of downloads：1421
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YE Jianmin，WANG Ruoyu，LUO Hongmei，XIE Yan
Abstract: The receiving end hybrid line commutated concerter based voltage source converter（LCC-VSC）notonly has the advantages of LCC and VSC，but also adopts the structure of high-voltage valve group LCC and lowvoltage valve group three-end parallel VSC in series at the receiving end. Therefore，the receiving end hyb...
更多Number of views：1941 Amount of downloads：1426
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ZHOU Wen，YANG Shaobo
Abstract: In the DC microgrid，bus voltage stability is the key to maintain the normal operation of the system.Load switching and distributed micro-source power fluctuations will affect the stability of the DC bus voltage. Tosolve the above problem，a compensation control strategy based on the residual generator was p...
更多Number of views：1945 Amount of downloads：1187
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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：1988 Amount of downloads：1073
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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：1810 Amount of downloads：1174
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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：1868 Amount of downloads：1117
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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：1733 Amount of downloads：1062
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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：1797 Amount of downloads：1081
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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：1828 Amount of downloads：1126
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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：2199 Amount of downloads：1269
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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：2175 Amount of downloads：1246
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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：2230 Amount of downloads：1371
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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：2192 Amount of downloads：1162
