-
LU Hai，ZHANG Xudong，DANG Junpeng，GUO Li，LIU Rui
Abstract: A 2-stage three-level power conversion system（PCS）was studied，in which the 3-level T-type 3-leg3-phase 4-wire（3LT23L3P4W）topology was adopted as AC/DC part while the 3-level Buck/Boost topology wasutilized as DC/DC interface. To address the neutral point potential（NPP）unbalance of the PCS，firstly，with thea...
更多Number of views：3732 Amount of downloads：1801
-
LI Xuan，DONG Yongle，HAI Hongye，JIN Zhao
Abstract: Under the background of smart grid，higher requirements are put forward for the management level of distribution network，and the traditional static model can not meet the application requirements of refined line loss and real-time scheduling. Based on low-voltage power grid topology identification and broad...
更多Number of views：3849 Amount of downloads：1682
-
YANG Chongwei，LIANG Xu，MAO Lan
Abstract: After a large-scale and high proportion of photovoltaic power generation is connected to the lowvoltage distribution network system，it will most likely cause the system power flow reversal，resulting in the out of limit voltage of each node of the system and the increase of system loss. First，using the line...
更多Number of views：3925 Amount of downloads：1683
-
LIU Jinchao，DUAN Hongmin，WU Letao，LIU Ligang，XU Chao
Abstract: Aiming at the phenomenon of pressure relief and deflagration caused by the faults of oil-immersedtransformer，a logic was proposed that the transformer can keep self-maintained running when faults occurred，and according to the logic，a scheme of oil circuit equipment was designed. The above logic and the sch...
更多Number of views：3960 Amount of downloads：1638
-
GUO Dengke，MI Wentao，ZHUANG Feihu，XU Yiduan，FAN Ruini
Abstract: According to the requirements of quickly and reasonably formulating load transfer measures afterdistribution network failure at this stage，a reliability evaluation scheme for fault transfer based on K-fold verification was introduced. Square up various power supply modes，according to the energy balance equ...
更多Number of views：3803 Amount of downloads：1663
-
GU Ming，XING Meng，GE Xianjun
Abstract: Aiming at the complex problem of weight factors tuning when the induction motor driving systemadopts the finite set model predictive control，an optimal finite set model predictive controller without weightdistribution for induction motor driving system was designed. In the new scheme，the form of sequential...
更多Number of views：3968 Amount of downloads：1792
-
LI Dexiang，LU Jiayu，GE Wenqing，LI Bo，TAN Cao
Abstract: Aiming at the problems of high control performance and long design cycle of electromagnetic linearactuator control parameters，a multi-objective optimization design method of control parameters was proposed.Based on electromagnetic linear actuator system，a robust controller was designed. The controller para...
更多Number of views：3951 Amount of downloads：1754
-
XU Rui，PAN Sanbo
Abstract: Aiming at the problem that the application of multi-step model predictive control（MPC）to invertercontrol results in a doubling of the number of solutions to lead to computational difficulties，an MPC strategy basedon the improved spherical decoding algorithm was introduced. In the control strategy，the optim...
更多Number of views：4219 Amount of downloads：1694
-
FU Xuhui，FANG Chun'en，XUE Tao，HUANG Leichao，CHEN Junping
Abstract: In order to ensure that the thyristor valve body can be accurately conducted during the solid state switch switching，a solid state switch trigger control unit was designed. Firstly，the structure and working principle of the solid state switch and the structure and function of the trigger control unit were ...
更多Number of views：4152 Amount of downloads：1798
-
YIN Aihui，REN Ang，WU Xiaowen，HOU Jianfeng，FAN Yulin
Abstract: When fast voltage control is used in a power factor corrector（PFC），ripples on the DC side can cause grid current harmonics. To solve this problem，a novel DC voltage nonlinear PI control strategy was proposed，which could reduce the harmonic content of fast voltage closed-loop in power factor corrector. Base...
更多Number of views：4058 Amount of downloads：1690
-
PAN Ling，FENG Qian，ZHANG Peng，SHEN Bing，ZHOU Jian，CHEN Ran，ZHAO Jinshuai
Abstract: Due to the high cable ratio of city grid，the harmonic pollution is aggravated. For the buses with high harmonic voltage content，it is necessary to evaluate the harmonic emission level of the utility side and customer side. Most of the existing evaluation methods are based on two assumptions：1）the harmonic ...
更多Number of views：4181 Amount of downloads：1792
-
YANG Zhaowen，YANG Guochao，LIU Jianjun，WANG Hongwei，BAI Xinyu
Abstract: A second order filtering power dividing frequency control strategy based on virtual impedance wasproposed. The different frequency power compensation among different storage units by building invisible passfilters was achieved. The invisible pass filters including high pass filter and low pass filters were...
更多Number of views：4040 Amount of downloads：2087
-
ZHAO Jianyong，ZHANG Zhenxiao，DING Yuanjie，YU Ziwei，HAN Junyao， WANG Shenghong，NIAN Heng，LI Xuerong
Abstract: Aiming at the problems of small regulation range and slow speed of traditional voltage regulators such as compensation capacitors in distribution network line voltage compensation，a voltage compensation scheme of distribution network in sparse area was proposed，the voltage hierarchical coordinated control ...
更多Number of views：3961 Amount of downloads：1818
-
FU Yu，LI Tie
Abstract: The microgrid is essentially an active distribution network，which is a combination of the distributed generation（DG）system and different loads at the distribution network voltage level. By analyzing factors such as safety and reliability，energy conservation and environmental protection in the microgrid，and...
更多Number of views：3848 Amount of downloads：1641
-
LI Xuhui，XIE Baihuang，HUANG Xiaoyong，XUYan
Abstract: The collector line short-circuit fault is one of the most common faults for the grid-connected doublyfed wind farms. Because the introduction of the crowbar discharge resistor，after the unsymmetrical faults of the collector line，the positive and negative sequence impedances of DFIG will produce the differe...
更多Number of views：3897 Amount of downloads：1797
