Journal ArticleDOI
Single-Phase Seven-Level Grid-Connected Inverter for Photovoltaic System
TLDR
This paper proposes a single-phase seven-level inverter for grid-connected photovoltaic systems, with a novel pulsewidth-modulated (PWM) control scheme, which was verified through simulation and implemented in a prototype.Abstract:
This paper proposes a single-phase seven-level inverter for grid-connected photovoltaic systems, with a novel pulsewidth-modulated (PWM) control scheme. Three reference signals that are identical to each other with an offset that is equivalent to the amplitude of the triangular carrier signal were used to generate the PWM signals. The inverter is capable of producing seven levels of output-voltage levels (Vdc, 2Vdc/3, Vdc/3, 0, -Vdc, -2Vdc/3, -Vdc/3) from the dc supply voltage. A digital proportional-integral current-control algorithm was implemented in a TMS320F2812 DSP to keep the current injected into the grid sinusoidal. The proposed system was verified through simulation and implemented in a prototype.read more
Citations
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Journal ArticleDOI
Multilevel Inverter Topologies With Reduced Device Count: A Review
TL;DR: In this article, some of the recently proposed multilevel inverter topologies with reduced power switch count are reviewed and analyzed, both in terms of the qualitative and quantitative parameters.
An Overview of Recent Research and Emerging PV Converter Technology
TL;DR: An overview of the existing PV energy conversion systems, addressing the system configuration of different PV plants and the PV converter topologies that have found practical applications for grid-connected systems is presented in this paper.
Journal ArticleDOI
Grid-Connected Photovoltaic Systems: An Overview of Recent Research and Emerging PV Converter Technology
TL;DR: An overview of the existing PV energy conversion systems, addressing the system configuration of different PV plants and the PV converter topologies that have found practical applications for grid-connected systems is presented in this article.
Journal ArticleDOI
A Deterministic Particle Swarm Optimization Maximum Power Point Tracker for Photovoltaic System Under Partial Shading Condition
Kashif Ishaque,Zainal Salam +1 more
TL;DR: A deterministic particle swarm optimization to improve the maximum power point tracking capability for photovoltaic system under partial shading condition by removing the random number in the accelerations factor of the conventional PSO velocity equation is proposed.
Journal ArticleDOI
Grid-Connected Photovoltaic Generation Plants: Components and Operation
Enrique Romero-Cadaval,Giovanni Spagnuolo,Leopoldo G. Franquelo,Carlos Andrés Ramos-Paja,Teuvo Suntio,Weidong Michael Xiao +5 more
TL;DR: In this article, the main design objective of photovoltaic (PV) systems has been, for a long time, to extract the maximum power from the PV array and inject it into the ac grid.
References
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Journal ArticleDOI
Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
Journal ArticleDOI
A review of single-phase grid-connected inverters for photovoltaic modules
TL;DR: In this article, the authors focus on inverter technologies for connecting photovoltaic (PV) modules to a single-phase grid and categorize the inverters into four classifications: 1) the number of power processing stages in cascade; 2) the type of power decoupling between the PV module(s) and the single phase grid; 3) whether they utilizes a transformer (either line or high frequency) or not; and 4) the kind of grid-connected power stage.
Journal ArticleDOI
Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives
TL;DR: This paper covers the high-power voltage-source inverter and the most used multilevel-inverter topologies, including the neutral-point-clamped, cascaded H-bridge, and flying-capacitor converters.
Journal ArticleDOI
Multidimensional Modulation Technique for Cascaded Multilevel Converters
Jose I. Leon,Samir Kouro,Sergio Vazquez,R. Portillo,Leopoldo G. Franquelo,Juan Manuel Campos Carrasco,Jose Rodriguez +6 more
TL;DR: A simple and low-computational-cost modulation technique for multilevel cascaded H-bridge converters based on geometrical considerations considering a unidimensional control region to determine the switching sequence and the corresponding switching times is presented.
Journal ArticleDOI
Control of a Single-Phase Cascaded H-Bridge Multilevel Inverter for Grid-Connected Photovoltaic Systems
TL;DR: This paper presents a single-phase cascaded H-bridge converter for a grid-connected photovoltaic (PV) application that offers other advantages such as the operation at lower switching frequency or lower current ripple compared to standard two-level topologies.