Fast-Scale Instability and Stabilization by Adaptive Slope Compensation of a PV-Fed Differential Boost Inverter
Source abstract
Abstract
Numerical simulations reveal that a single-stage differential boost AC module supplied from a PV module under an Maximum Power Point Tracking (MPPT) control at the input DC port and with current synchronization at the AC grid port might exhibit bifurcation phenomena under some weather conditions leading to subharmonic oscillation at the fast-switching scale. This paper will use discrete-time approach to characterize such behavior and to identify the onset of fast-scale instability. Slope compensation is used in the inner current loop to improve the stability of the system. The compensation slope values needed to guarantee stability for the full range of operating duty cycle and leading to an optimal deadbeat response are determined. The validity of the followed procedures is finally validated by a numerical simulations performed on a detailed circuit-level switched model of the AC module.
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Research context
OpenAlex topics: Microgrid Control and Optimization · Photovoltaic System Optimization Techniques · Power Systems and Renewable Energy
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electronics, Electrical Engineering and Automatic Control, Universitat Rovira i Virgili, 43002 Tarragona, Spain
Department of Electrical Engineering, University Mustapha Stambouli of Mascara, Mascara 29000, Algeria
Electrical Engineering Department, King Saud University, Riyadh 11451, Saudi Arabia
Electrical Engineering and Automatic Control, Hassan II University of Casablanca, Casablanca 20000, Morocco
Funding
Ministerio de Economia y Competitividad · International Scientific Partnership Program ISPP at King Saud University
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Show source-provided references
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