Abstract
In this paper, a model-based approach of DC-DC converters dedicated to controller design applications for photovoltaic generators is introduced. The paper provides a mathematic averaging model, based on the state space method for DC-DC converters that is used as an adaptation level in photovoltaic generators. This modeling allows the dynamics of the system to be described by presenting a reliable model to be used for oriented controller design. The two most needed topologies of DC-DC converters are proposed, buck and buck-boost, and an overview of integral state feedback controller design using a model-based approach for a boost converter connected to a photovoltaic generator described in our previous published work is provided. The model-based conception of both converter types is analyzed for optimal use in control-oriented design. The validation of each model is demonstrated by comparative curves represented by a detailed plant model using simscape devices available and implemented in Simulink/Matlab.
Highlights
Worldwide focus has been directed to the research of water management systems for agricultural and food production [1]
Voltage adjustment between these generators (as photovoltaic (PV) arrays) and load requires the adoption of direct current-direct current (DCDC) converters, which enable the maximum extraction of power available through appropriate control techniques
Based on the simulation results shown in this paper, the model-based approach is validated
Summary
Worldwide focus has been directed to the research of water management systems for agricultural and food production [1] In providing these systems, especially to rural near-desert areas, the most optimal solution is the use of offgrid renewable energy generators [2, 3]. Especially to rural near-desert areas, the most optimal solution is the use of offgrid renewable energy generators [2, 3] Voltage adjustment between these generators (as photovoltaic (PV) arrays) and load requires the adoption of direct current-direct current (DCDC) converters, which enable the maximum extraction of power available through appropriate control techniques. This section summarizes the most important steps in building an oriented controller through the proposed modelbased approach of a boost converter [5] It recounts the analysis of the oriented model for application purposes. We note that a detailed explanation of the PV generator is presented in [5], it will be applied directly in this work
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