A statistical approach to quantify the impact on voltage quality caused by PV generators

Author

Saadat, N. ; Choi, SS ; Vilathgamuwa, DM

Author_Institution

Centre for Smart Energy Syst., Nanyang Technol. Univ., Singapore, Singapore

fYear

2011

fDate

6-9 July 2011

Firstpage

156

Lastpage

161

Abstract

A probabilistic method is proposed to evaluate voltage quality of grid-connected photovoltaic (PV) power systems. The random behavior of solar irradiation is described in statistical terms and the resulting voltage fluctuation probability distribution is then derived. Reactive power capabilities of the PV generators are then analyzed and their operation under constant power factor mode is examined. By utilizing the reactive power capability of the PV-generators to the full, it is shown that network voltage quality can be greatly enhanced.

Keywords

photovoltaic power systems; power factor; power grids; power supply quality; reactive power; statistical distributions; PV generator; constant power factor; grid-connected photovoltaic power system; network voltage quality; probabilistic method; reactive power capability; solar irradiation; statistical approach; voltage fluctuation probability distribution; Generators; Inverters; Photovoltaic systems; Probability distribution; Reactive power; photovoltaic generators; reactive power capability; statistical analysis; voltage quality;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011 4th International Conference on

Conference_Location

Weihai, Shandong

Print_ISBN

978-1-4577-0364-5

Type

conf

DOI

10.1109/DRPT.2011.5993880

Filename

5993880