Modeling and Control of a Single-Inductor Multi-Input Multi-Output DC-DC Boost Converter for PV Applications

Abstract

This article proposed a Single-inductor multi-input multi-output (SI-MIMO) boost converter with two inputs and two outputs. SI-MIMO dc-dc converters are widely used in various engineering applications, including chargers for hybrid vehicles and photovoltaic (PV) panels, because of the benefit of high-power density and low cost. These converters are proper for renewable energy sources like PV panels. By hybridizing energy sources, the advantages of using different sources are achievable. Moreover, the outputs' power can be flexibly divided between input sources. Additionally, charging or discharging of energy storage by other input sources can be easily controlled. Due to control of the converter, A decoupling network is introduced. Considering the decoupled design and small-signal linearization, the required linear controllers are designed using SISO control strategies for this MIMO system.