The design of the control system for object with delay and interval-given parameters

摘要

The paper deals with the problem of the design of the regulator for the object having delay link. With all this the parameters of the mathematical model of the object are changing inside some intervals or known with low accuracy, so that it is only known the intervals to which these parameters belong. The states task is supposed to resolve with the helps of the numerical optimization. The result of it is the values of the regulator coefficient, whose structure has been given by the designer in the form of PID-regulator. Searching of the parameter is known as parametric design. The simulation program allows making sure of validity of the result and robust feature of the system which is the product of the regulator design. The optimization is made based on the minimization of the quality criterion in the form of cost function. The robustness has been achieved due to the simultaneous optimization of the several systems with the same regulators and with the different object parameters. The proposed method is illustrated by an example of the design of robust control system with interval-given parameter and with the delay link, which is taken from the close task paper, these results are compared, the advantages of the proposed method has been demonstrated.