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浏览/检索结果: 共8条，第1-8条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 Research on a Location Method for Complex Voltage Sag Sources Based on Random Matrix Theory 期刊论文 Mathematical Problems in Engineering, 2020, 卷号: 2020 作者:  Wu, Lizhen;  Zhang, Yongnian;  Hao, Xiaohong;  Chen, Wei 收藏  |  浏览/下载：21/0  |  提交时间：2020/11/14 Complex networks  Electric fault currents  Location  Random variables  Topology  Active power methods  Augmented matrices  Data-driven approach  Disturbance signals  Model-based method  Random matrix theory  Statistical characteristics  Topology information   Backstepping active disturbance rejection control: a delayed activation approach 期刊论文 IET CONTROL THEORY AND APPLICATIONS, 2017, 卷号: 11, 页码: 2336-2342 作者:  Ran, Maopeng;  Wang, Qing;  Dong, Chaoyang;  Hou, Yanze;  Wang, Zhaolei 收藏  |  浏览/下载：10/0  |  提交时间：2019/12/30 active disturbance rejection control  control nonlinearities  nonlinear control systems  delay systems  observers  closed loop systems  uncertain systems  state feedback  backstepping active disturbance rejection control  delayed activation approach  ADRC approach  pure feedback nonlinear systems  tracking control  ESOs  extended state observers  virtual control  system uncertainty  closed-loop signals  output tracking error   Detection and Identification of Transient Power Quality Disturbance 会议论文 作者:  Hao, Xiaohong;  Cao, Juan;  Han, Yufang;  Gu, Qun 收藏  |  浏览/下载：0/0  |  提交时间：2019/11/15 Disturbance signals  Wavelet transform  Generalized S transform  Rank-WSVM   Trajectory tracking control of a quad-rotor UAV based on command filtered backstepping (EI CONFERENCE) 会议论文 2012 3rd International Conference on Intelligent Control and Information Processing, ICICIP 2012, July 15, 2012 - July 17, 2012, Dalian, China Gong X.; Bai Y.; Peng C.; Zhao C.; Tian Y. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 A quad-rotor unmanned aerial vehicle is an under-actuated  strong coupled nonlinear system with parameters uncertainty and unknown external aerodynamic disturbance. The trajectory tracking control system with a nested double-loops structure is designed in this paper according to the coupling characteristic between the attitude angles and translational position. A PD control algorithm is proposed in the translational outer-loop to export the desired attitude signals to the attitude inner-loop. An adaptive backstepping control algorithm is designed in the inner-loop with respect to the uncertain rotational inertia and un-modeled disturbance  while in order to reduce the computational complexity the command filtered approach is introduced into the designing procedure. And finally  the numerical simulation results are presented for the trajectory tracking stabilization of a Quad-rotor  which demonstrates the excellent performance of the proposed control system and illustrate its robustness in face of disturbance and uncertain parameters. 2012 IEEE.   Transient power quality disturbances detection based on fuzzy adaptive mathematical morphology filter and S-transform 期刊论文 Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control, 2011, 卷号: 39, 期号: 17, 页码: 98-102 作者:  Hao, Xiao-Hong;  Hao, Shou-Qing;  Hu, Zhen-Bang;  Zheng, Wei 收藏  |  浏览/下载：14/0  |  提交时间：2020/11/14 Adaptive filtering  Fuzzy control  Fuzzy filters  Mathematical morphology  Morphology  Power quality  Transients  Amplitude envelope  Disturbance detection  Disturbance signals  Electromagnetic transient phenomena  Fundamental characteristics  Morphological filters  S transforms  Transient power quality   Power quality disturbance signals identification based on wavelet packet and SVM 会议论文 作者:  Yan-Nan, First A. Li;  Guang-Qing, Second B. Bao 收藏  |  浏览/下载：0/0  |  提交时间：2020/11/15 Grinding (machining)  Pattern recognition  Wavelet analysis  Wavelet transforms  Classification accuracy  Disturbance signals  Numerical results  Power disturbances  Power quality disturbances  Power system disturbances  Real time performance  Wavelet packet transforms   Power Quality Disturbance Signals Identification Based On Wavelet Packet and SVM 会议论文 作者:  Li Yan-nan;  Bao Guang-qing 收藏  |  浏览/下载：0/0  |  提交时间：2019/11/15 Power system disturbance signals  Wavelet packet transforms  Support Vector Machine (SVM)   Nonlinear control design for system with mechanical resonance based on two tracking-differentiators (EI CONFERENCE) 会议论文 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China Huang P.; Ge W.; Li J.; Xiu J.; Li Y.; Chen L. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 A nonlinear control strategy for controlling a motion system with mechanical resonance is presented in this paper. A mathematical model of the servo system is derived according to the parameters of an actual system. By using two Tracking-Differentiators  reference input and system output are tracked and their differential signals are given simultaneously. A nonlinear PD control law in velocity loop is designed based on non-smooth feedback. The simulation results show that the control law is superior remarkably in performance to linear PD control law and the classical PID control law. Tracking-Differentiator resolves the contradiction between rapidity and overshoot of system response. The nonlinear PD control law improves system dynamic performance and intensifies the ability of disturbance rejection. The control design achieved in this paper makes the servo system more robust. 2010 IEEE.