不規則入力をうける制御系の非線形要素による非定常応答の改善

抄録

A method of improving the response of control systems subjected to suddenly applied random inputs by introducing a nonlinear element is presented. The technique described here is based on the concept of non-stationary equivalent linearization. The description begins with the calculation of optimum equivalent gain to minimize the mean squared error. From this result, the principal line of attack is to determine the introduced nonlinear characteristic and to evaluate how much better it can be expected to perform than its linear counterpart. It is also shown that an intentional nonlinear control system gives a considerable reduction of the mean squared error. Detailed aspects of the numerical procedure are illustrated by a typical example.