Control of multiple modular DC-to-DC power converters in conventional and dynamic sliding surfaces

Autonomous Systems of Electric Power Supply (ASES) consisting of one primary source and a set of multiple modular switched-controlled secondary sources (DC-to-DC power converters) are considered. The interconnection of the secondary sources through the common primary source increases the dimension of the switched-control problem and leads to additional nonlinear effects. The problem of the stabilization of the voltages transformed by the multiple modular switched-controlled secondary sources is formulated and solved on conventional and dynamic local sliding surfaces. Robust, decoupled linear behavior of the transformed voltage stabilization errors (with given eigenvalue placement) is guaranteed in local sliding modes. The desired quality of the voltage stabilization is achieved on dynamic sliding surfaces without measurement or estimation of disturbances (load currents).