-
CAO Xinping, YIN Zhonggang, ZHANG Yanping, ZHANG Yanqing
Abstract: Aiming at the problems of chattering and poor observation accuracy of traditional full order slidingmode observer (FSMO), a sensorless control strategy of interior permanent magnet synchronous motor (IPMSM)based on improved full order sliding mode observer was proposed. In this strategy, the quasi-sign func...
更多Number of views：3975 Amount of downloads：1819
-
ZHANG Yang，GAO Tian，LIN Weixing
Abstract: Photovoltaic inverter，charging pile，energy storage converter，wind power converter and othercommon power electronic equipment are three-phase high frequency AC/DC/DC converter，which is widely used inindustrial and civil fields. Due to the fast switching capability of three-phase high frequency converter，its...
更多Number of views：3902 Amount of downloads：1511
-
MA Tianhui，MAWeiwei，GU Huaiguang，LIU Dong
Abstract: The modular multilevel converter（MMC）based high voltage direct current（HVDC）system（MMCHVDC）is an ideal solution for large-scale grid-connected and clustered offshore wind farms. But the interaction between the doubly fed induction generator（DFIG）and the MMC-HVDC system has a risk of subsynchronous oscillat...
更多Number of views：3896 Amount of downloads：1642
-
LING Chunyang，LIU Fang，LI Hao，ZHAO Yang
Abstract: SiC MOSFET devices have the characteristics of high switching frequency，low loss，and hightemperature resistance，which can significantly improve the power density and efficiency when used in wirelesscharging. However，in the control of the wireless charging converter，hard turn-on and hard turn-off are easy t...
更多Number of views：3868 Amount of downloads：1776
-
PANG Lin，LU Xin，WU Zhanxia，WANG Xueliang，FU Meiming，ZHANG Hongming
Abstract: Traditional virtual synchronous generator（VSG）is a primary frequency regulation technique. Afterload power changes，the frequency of microgrid cannot return to the rated level，influencing the safety of the microgrid in a severe condition. In order to avoid steady-state errors under large load fluctuations，a...
更多Number of views：3868 Amount of downloads：1935
-
ZHAO Chaokun，YAN Tao，ZHOU Jiachao，YUAN Zhanwei，MENG Pu
Abstract: The AMK servo control system is widely used in cigarette machine equipment like German Protos-M5 and local product ZJ116. But its failure parts repaired could not be guaranteed to operate safely and reliably. Ifthose parts are replaced frequently，the efficiency of the equipment will be seriously impact. To...
更多Number of views：3837 Amount of downloads：14805
-
ZHANG Lantao，XIONG Jun，NIU Xiaonan，HUANG Xiaoyu
Abstract: Aiming at the reliability problem of high-power IGBT modules under short circuit extreme operatingconditions，the power terminals imbalanced current of IGBT modules and the resulting dynamic junctiontemperature change were comprehensively analyzed. Firstly，the current sharing characteristics of parallel ter...
更多Number of views：3822 Amount of downloads：1430
-
LIU Weizhi
Abstract: In high-power traction converter，SiC devices with many advantages such as fast switching speed，high temperature resistance and low switching loss are used to replace Si devices. The three-level active neutral-pointclamped（3L-ANPC）converter based on SiC devices can reduce the burden of heat dissipation syst...
更多Number of views：3818 Amount of downloads：1879
-
NIU Qian，ZHANG Dong，WANG Junlong
Abstract: Aiming at the problems of uneven power distribution and poor stability of grid AC/DC microgrid，anew adaptive coordinated control strategy was proposed to improve the stability and power distribution accuracy ofAC/DC microgrid（MGs）system.First，for converters connectingAC microgrids and DC microgrids，a contr...
更多Number of views：3818 Amount of downloads：1553
-
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：3813 Amount of downloads：1449
-
LIU Mengmeng，LI Ruifang，MIAO Weili
Abstract: In order to optimize the controller structure of the permanent magnet synchronous motor（PMSM），a simplified speed control strategy for the PMSM based on genetic algorithm（GA）was proposed.The new controller mainly includes a direct voltage controller，which uses the motor model to achieve accurate speed track...
更多Number of views：3790 Amount of downloads：1569
-
ZHAO Jianyong，LI Han，WU Min，MA Runsheng，ZHAO Wenqiang，YU Ziwei
Abstract: Firstly，the significance of impedance modeling for new energy power generation equipment wasanalyzed，and the existing impedance modeling methods were explained. Aiming at the problems of low flexiblematching degree，single disturbance signal，fixed disturbance frequency and the inability of real-time measure...
更多Number of views：3754 Amount of downloads：1742
-
GONG Ruibang，JIANG Qi，WANG Yuchen，ZHANG Baoqing
Abstract: A novel voltage regulation and maximum power point tracking（MPPT）control for DC microgridcomposed of PV panel，battery，constant resistance and constant power loads was proposed. A dynamic model of the DC microgrid system described by a multi-input and multi-output nonlinear system with non-affine inputs was...
更多Number of views：3739 Amount of downloads：1594
-
GUO Yufei，LI Yiliang，WANG Yijie，XU Dianguo
Abstract: In order to speed up the process of "carbon neutrality" and "peak carbon dioxide emissions"，fossilenergy has been gradually replaced by renewable energy，and renewable energy will become the main powergeneration mode in the future. The combination of energy storage system and bidirectional converter become ...
更多Number of views：3733 Amount of downloads：2213
-
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：3725 Amount of downloads：1478
