H ∞ Fuzzy Control of DC-DC Converters with Input Constraint

الملخص EN

This paper proposes a method for designing H∞ fuzzy control of DC-DC converters under actuator saturation.

Because linear control design methods do not take into account the nonlinearity of the system, a T-S fuzzy model and a controller design approach is used.

The designed control not only handles the external disturbance but also the saturation of duty cycle.

The input constraint is first transformed into a symmetric saturation which is represented by a polytopic model.

Stabilization conditions for the H∞ state feedback system of DC-DC converters under actuator saturation are established using the Lyapunov approach.

The proposed method has been compared and verified with a simulation example.