Roger Dixon's Project Page
Project Description
The research is predominantly concerned with modelling and digital control
design for computer controlled systems. This includes theoretical
investigation together with the design and implementation of controllers on
practical real time systems; for example,
pile driving rig ,
coupled drives
system, inverted
pendulum.
In the True Digital Control (TDC) design philosophy, all the design steps, from
modelling to control implementation are carried out overtly in discrete time
terms. This is in contrast to more conventional Direct Digital Control (DDC)
system designs where the sampled data controller is obtained by the
digitisation of a continuous time design based on a continuous time model.
The TDC strategy consists of four fundamental steps: data-based identification
and estimation of discrete-time, linear models of the system using
advanced estimation techniques (developed by
P.C. Young);
the design of a Proportional-Integral-Plus (PIP) true digital controller,
based on these estimated models; initial evaluation of the design using
computer simulation;and, finally, real time implementation and evaluation of
the controller on the actual system.
Supervision
My Phd Research is carried out under the supervision of
Dr Arun Chotai and
Prof Peter Young.
Funding
This project is funded by an EPSRC Studentship.
Publications
- Dixon, R. and Lees, M. Implementation of Multivariable
Proportional-Integral-Plus (PIP) Control Design for a Coupled Drive System
, Proc. 10th International Conference on Systems Engineering,
Coventry University, England, 286-293,1994.
- Dixon, R., Young, P.C., Chotai, A., Shao, J.,
Proportional-Integral-Plus (PIP) Control of an Inverted Pendulum System,
(to appear in) proc. of I.E.E. Control 96, 1996.
- Young, P.C., Chotai, A., Taylor C.J. and Dixon, R., Structural and
Predictive Aspects of Proportional-Integral-Plus (PIP) Control,
(to appear in) proc. of I.E.E. Control 96, 1996.
- Seward, D.W., Ward, J., Dixon, R., Findlay, J. and Kinniburgh, H. (Oct. 1996) Precise on-site positioning of
a piling rig, Trimble 1996 Surveying and Mapping Conference,
San Jose, Calif. USA.
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