A symbolic-computation-based passification method for switched polynomial nonlinear systems with time delays

This paper proposes a symbolic-computation-based passification method for switched polynomial nonlinear systems with time delays. A parameterized controller is designed to achieve passification. To determine feasible parameter ranges, a symbolic computation algorithm is developed. Compared with existing approaches, the proposed method avoids solving partial differential inequalities and provides adjustable disturbance attenuation capability. Numerical simulations validate the effectiveness of the framework.