| Description |
vii, 70 leaves : illustrations ; 29 cm |
| Summary |
"Three methods for optimizing a proportional and a proportional-integral controller parameter problem were investigated on an iterative analog computer. The three methods were the parameter-perturbation correlation method, the absolute biasing method, and the variable step size method. The process controlled was third order linear. The performance function used to judge the quality of the controller was the time integral of the absolute value of error. All three methods required a trial and error adjustment of the parameters used in these methods. The optimum solution was obtained by all methods. The absolute biasing method, for both the proportional and the proportional-integral controller problems, encountered difficulties with larger postconvergence oscillations than the other two methods. The rate of convergence was slowest for the variable step size method but its results were the most stable of the three methods"--Abstract, leaf ii. |
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