Output Regulation for Voltage Control in DC Networks With Time-Varying Loads

In this letter, we propose a novel control scheme for regulating the voltage in Direct Current (DC) networks. More precisely, the proposed control scheme is based on the output regulation methodology and, differently from the results in the literature, where the loads are assumed to be constant, we consider time-varying loads whose dynamics are described by a class of nonlinear differential equations. We prove that the proposed control scheme achieves voltage regulation ensuring the stability of the overall network.

I. Introduction

The recent wide spread of renewable energy sources, electronic appliances and batteries motivates the design and operation of Direct Current (DC) networks, which are generally more efficient and reliable than AC networks [1].