摘要:

This paper describes a method for antiwindup by resetting the integrator to a normal value whenever the control error crosses zero and the integrator has an unusually large value. The method is simple and efficient and easy to implement. It needs two design parameters, a normal integrator value and a windup limit, both of which are easily obtained. The values need not be known very precisely; in fact only crude approximations are required.

ISSN:0020-7179    

DOI:10.1080/00207179408921507

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

This paper addresses the problem of obtaining nonlinear state-feedback controllers for controlling constrained dynamic systems, a problem which is, perhaps, the most important outstanding problem in control design. A novel off-line, optimization-based design procedure is employed; the control law is constructed from the solution to a finite number of optimal open-loop control problems. The design procedure permits relatively simple modification and improvement to the control law to be made in those regions of the state-space in which simulation reveals deficiencies. This potential for incremental improvement constitutes an important advantage over alternative methods. The results are relevant when high performance is required of systems subject lo constraints on controls and states.

ISSN:0020-7179    

DOI:10.1080/00207179408921508

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Although the very important concept of relative order is defined in differential geometric control with respect to an affine input-state-output (I-S-O) system, it is rather the difference between the highest orders of the derivative of output and that of input in the corresponding input-output (I-O) systems. This is a direct generalization of the result in the case of the transfer function in linear control theory. The relative order is proved to be an invariant of realization, and applications in realization and minimal equivalence are discussed..

ISSN:0020-7179    

DOI:10.1080/00207179408921509

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor