http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Application of Modified Model Predictive Control to a Gantry System
Masood Askari,Haider A. F. Mohamed,M. Moghavvemi,S. S. Yang 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper considers in particular the design of a controller based on model predictive control and feedbacklinearization methods for gantry systems. In order to meet the operation requirements of fast anti-swaying and precisepositioning of gantry crane systems, a practical optimal control scheme is presented. This controller is designed toguarantee the performance in presence of a class of nonlinear dynamics. The controller is implemented on anexperimental rotary gantry system. The controller achieves good positioning accuracy and significant sway reduction.
Identification of Piecewise affine Systems with Hysteresis Model
Masood Askari,Haider A. F. Mohamed,Mahmoud Moghavvemi,S. S. Yang 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
A general nonlinear system can be identified as a piecewise affine system by approximating a nonlinear function using a piecewise affine one with arbitrary accuracy. In this paper, the problem of identifying discrete-time hybrid systems in the piecewise affine form where the discrete state depends on continuous state with a hysteresis function is addressed. The first step of the proposed identification method is the estimation of the local parameter vectors for small neighborhood of each measured data point. Then the local parameter vectors are clustered. Finally, the threshold levels of the hysteresis function which defines the discrete state are estimated.