Predictive Control Applied to a Boost Converter of a Photovoltaic System

Author(s)

Sguarezi Filho, Alfeu J. ^[1] ; Inomoto, Roberto S. ^{[1, 2]} ; Rodrigues, Lucas L. ^{[1, 3]} ; Cunha, Rafael B. A. ^{[1, 2]} ; Vilcanqui, Omar A. C. ^[3]

Affiliation

^[1] Fed Univ ABC, Santo Andre, SP - Brazil

^[2] Univ Sao Paulo, Sao Paulo - Brazil

^[3] Univ Fed Acre, Rio Branco - Brazil

• Document type: Journal article
• Source: JOURNAL OF CONTROL AUTOMATION AND ELECTRICAL SYSTEMS; SEP 2021.
• Web of Science Citations: 0

Abstract

Generation units like photovoltaics systems require high efficiency using closed-loop control system. MPPT algorithm permits to track maximum power from photovoltaic module. This paper proposes the predictive control applied to a boost converter of solar plant to increase the controller performance. The controller consists in two control loops: the outer control loop calculates the inductor current oriented by voltage from MPPT algorithm to minimize input voltage error. And inner control loop employs the state-space boost converter model computed using its transfer function to predict the current. Duty cycle that guarantees the current tracks the reference current has computed by a minimized cost function using the future references and the predicted values. Additionally, the proposal employs constant switching frequency using a modulator. A lead-lag controller and sliding mode controller are implemented in order to compare the performance of the predictive controller in experimental setup and the results endorses the proposal. (AU)

• FAPESP's process: 17/04623-3 - Predictive control applied to the input converter for photovoltaic systems
• Grantee: Alfeu Joãozinho Sguarezi Filho
• Support Opportunities: Regular Research Grants