A single-phase grid-connected photovoltaic power system using DFCM converter

Author

Baradarani, Farzam ; Hosseini, Seyed Hossein ; Nejabatkhah, Farzam

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran

fYear

2011

fDate

1-4 Dec. 2011

Abstract

This paper presents a single-phase grid-connected photovoltaic power system with the capability of maximum power point tracking (MPPT) of photovoltaic (PV) array and reactive power compensation. This topology employs a boost converter to track the maximum power point of PV array and a dual flying capacitor multicell (DFCM) converter in order to connect to the grid. The proposed system can fulfill comprehensive reactive power performance even when the PV power is unavailable. The four-cell nine-level DFCM converter, controlled with modified PSPWM, has improved output voltage frequency spectrum, and low harmonic distortion with reduced number of switches among nine-level inverters. The simulation results, developed in MATLAB software, verify the performance and advantages of the proposed system.

Keywords

PWM invertors; PWM power convertors; harmonic distortion; maximum power point trackers; photovoltaic power systems; power capacitors; power grids; reactive power control; MATLAB software; PSPWM; boost converter; dual flying capacitor multicell converter; four-cell nine-level DFCM converter; grid-connected photovoltaic power system; low harmonic distortion; maximum power point tracking; nine-level inverters; photovoltaic array; reactive power compensation; single-phase photovoltaic power system; voltage frequency spectrum; Arrays; Capacitors; Control systems; Integrated circuit modeling; Mathematical model; Photovoltaic systems; Reactive power;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Electronics Engineering (ELECO), 2011 7th International Conference on

Conference_Location

Bursa

Print_ISBN

978-1-4673-0160-2

Type

conf

Filename

6140161