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674 results on '"Li Chengxiang"'

1. Continuous commutation failure suppression strategy in hybrid multi-infeed HVDC transmission system

Author

ZHONG Mingming, XIA Chengjun, LI Shoutao, HUANG Chuyin, and LI Chengxiang

Subjects
hybrid multi-feed high voltage direct current system, continuous commutation failure, coordinated control, additional reactive power control, adaptive current limit, dynamic power limiting, Applications of electric power, TK4001-4102
Abstract

For the wide application of high voltage direct current (HVDC) transmission engineering,the continuous commutation failure of line commutated converter HVDC (LCC-HVDC) has a seriously negative impact on the stable operation of the power system. Therefore,in order to mitigate the continuous commutation failure of LCC-HVDC in hybrid multi-feed HVDC system,from the perspective of increasing the LCC-HVDC commutation voltage,a coordinated control strategy for hybrid multi-infeed HVDC systems is proposed in this paper. According to the real-time reactive power shortage of the conventional DC,the reactive power and active power of voltage source converter HVDC (VSC-HVDC) output are dynamically adjusted by this strategy,thereby changing the transient stable operating point of VSC-HVDC. Through the coordinated control of this strategy,the continuous commutation failure of LCC-HVDC is suppressed and the transmission capacity of the active power of the DC transmission system is greatly improved. Finally,a simulation model of the hybrid dual-infeed HVDC system is built in PSCAD/EMTDC,and the effectiveness of the coordinated control strategy is verified.

Published
2022
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4. Motion Planning for the Transfer Robot based on ADAMS Simulation Optimization

Author

Li Chengxiang, Yang Zhijun, and Cai Tiegen

Subjects
Residual vibration, Adams, Simulation optimization, Motion planning, Mechanical engineering and machinery, TJ1-1570
Abstract

The residual vibration caused by flexible end-effector decreases the positioning accuracy,for transfer robots run with high speed and high acceleration,stop and start frequently. The active and passive control methods and the method of only considering motion curve smoothness are used to reduce vibration,but it has the problems such as time lag,control complexity and material cost limit. The motion of robot is simulated in dynamics method with ADAMS software,the influences of different motion curves on the motion positioning precision are compared and the parameters of S-curve are optimized. The optimized asymmetric motion curve is used to be motion curve to get robot move fast and smoothly. A motion planning method for transfer robot based on dynamics is proposed.

Published
2016
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7. Preliminary study of steep pulse irreversible electroporation technology in human large cell lung cancer cell lines L9981

Author

Song Zuoqing, Pan Zhenhua, Xu Xiaohong, Wang Weiqiang, Zu Lingling, Wang Jing, Song Zhitao, Liu Hongyu, Li Zhigang, Li Chengxiang, Chen Jun, Yao Chenguo, and Zhou Qinghua

Subjects
steep pulsed, irreversible electrical breakdown, large cell lung cancer, Biology (General), QH301-705.5
Abstract

Our aim was to validate the effectiveness of steep pulse irreversible electroporation technology in human large cell lung cancer cells and to screen the optimal treatment of parameters for human large cell lung cancer cells. Three different sets of steep pulse therapy parameters were applied on the lung cancer cell line L9981. The cell line L9981 inhibition rate and proliferation capacity were detected by Vi-Cell vitality analysis and MTT. Steep pulsed irreversible electroporation technology for large cell lung cancer L9981 presents killing effects with various therapy parameters. The optimal treatment parameters are at a voltage amplitude of 2000V/cm, pulse width of 100μs, pulse frequency of 1 Hz, pulse number 10. With this group of parameters, steep pulse could have the best tumor cell-killing effects.

Published
2013
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8. Research on Cyclic Ampacity Computational Model of High Voltage AC Submarine Cables Under Typical Load Profiles

Author

Li, Chengxiang, Wu, Zhaoxiao, Zhou, Yan, Chen, Dan, Zhang, Xinyue, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Cai, Chunwei, editor, Qu, Xiaohui, editor, Mai, Ruikun, editor, Zhang, Pengcheng, editor, Chai, Wenping, editor, and Wu, Shuai, editor

Published
2024
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20. Comparative genomic analyses reveal the genetic basis of the yellow-seed trait in Brassica napus

Author

Qu, Cunmin, Zhu, Meichen, Hu, Ran, Niu, Yongchao, Chen, Si, Zhao, Huiyan, Li, Chengxiang, Wang, Zhen, Yin, Nengwen, Sun, Fujun, Chen, Zhiyou, Shen, Shulin, Shang, Guoxia, Zhou, Yan, Yan, Xingying, Wei, Lijuan, Liu, Liezhao, Yi, Bin, Lian, Jinmin, Li, Jiang, Tang, Zhanglin, Liang, Ying, Xu, Xinfu, Wang, Rui, Yin, Jiaming, Wan, Huafang, Du, Hai, Qian, Wei, Chai, Yourong, Zhou, Qingyuan, He, Yajun, Zhong, Silin, Qiu, Xiao, Yu, Hao, Lam, Hon-Ming, Lu, Kun, Fu, Fuyou, and Li, Jiana

Published
2023
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27. A Method for Separating Positive Active Material of Lithium-Ion Battery by Underwater Pulse Discharge

Author

Li, Chengxiang, Dai, Ming, Zhou, Yan, Chen, Dan, Kou, Pengfei, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Xie, Kaigui, editor, Hu, Jianlin, editor, Yang, Qingxin, editor, and Li, Jian, editor

Published
2023
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39. Study on Block Strategy Optimization of Passive Isolated Island Operation of DXB UHVDC Project

Author

Huang, Run, Zhang, Lifei, Wu, Chen, Li, Chengxiang, Yang, Lei, Wu, Mingkang, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Xue, Yusheng, editor, Zheng, Yuping, editor, and Novosel, Damir, editor

Published
2022
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