A modular multilevel power converter system for photovoltaic applications
- 1 May 2011
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
In this paper a novel power conversion structure for grid-connected photovoltaic applications is presented. The proposed structure uses a four-wire voltage source inverter, two single-phase voltage source inverters and a scott transformer. PV modules arrangements can be divided in several groups. This power conversion structure is suitable for multi-string technology. The proposed structure allows multilevel output voltage. A sinusoidal pulse with modulator particularly adapted to this power converter structure is also proposed. Several simulation results are presented in order to verify the effectiveness of the proposed system.Keywords
This publication has 14 references indexed in Scilit:
- Unity Power Factor Isolated Three-Phase Rectifier With Split DC-Bus Based on the Scott TransformerIEEE Transactions on Power Electronics, 2008
- Control strategy for a multilevel inverter in grid-connected photovoltaic applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- Narrow Pulse Elimination PWM for Multilevel Digital Audio Power Amplifiers Using Two Cascaded H-Bridges as a Nine-Level ConverterIEEE Transactions on Power Electronics, 2007
- Modified Phase-Shifted PWM Control for Flying Capacitor Multilevel ConvertersIEEE Transactions on Power Electronics, 2007
- Natural Balance of Multicell Converters: The Two-Cell CaseIEEE Transactions on Power Electronics, 2006
- Implementation and control of distributed PWM cascaded multilevel inverters with minimal harmonic distortion and common-mode voltageIEEE Transactions on Power Electronics, 2005
- Multilevel inverters: a survey of topologies, controls, and applicationsIEEE Transactions on Industrial Electronics, 2002
- Self-balancing of the clamping-capacitor-voltages in the multilevel capacitor-clamping-inverter under sub-harmonic PWM modulationIEEE Transactions on Power Electronics, 2001
- Fundamentals of a new diode clamping multilevel inverterIEEE Transactions on Power Electronics, 2000
- A new approach to enhance power quality for medium voltage AC drivesIEEE Transactions on Industry Applications, 1997