Effect of PV power injection in unbalanced distribution systems

Author

Yaghoobi, Jalil ; Mithulananthan, N. ; Saha, Tapan K.

Author_Institution

Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia

fYear

2014

fDate

Sept. 28 2014-Oct. 1 2014

Firstpage

1

Lastpage

6

Abstract

Photovoltaic (PV) power is a favorable source of clean energy, which can be easily integrated into distribution systems, next to loads. However, to meet a considerable load portion of the system a high penetration level of PV is required. This high penetration level along with unbalanced connection of single phase rooftop PV units makes it necessary to assess the effect of PV on the voltage of unbalanced distribution systems. Considering the complexity of analyzing unbalanced systems, this paper develops a practical method based on load flow formulation. In this method, two sets of scalar matrices are derived to estimate the effect of PV real and reactive power injections on power system voltage profile. Comparison between actual and estimated results for IEEE 37-bus test system verifies the effectiveness of proposed estimation method.

Keywords

distribution networks; photovoltaic power systems; PV power injection; load flow formulation; photovoltaic power; power system voltage profile; scalar matrices; single phase rooftop PV units; unbalanced distribution systems; Australia; Educational institutions; Estimation; Impedance; Load flow; Power engineering; Reactive power; Unbalanced distribution systems; real and reactive power injection; rooftop PV units; voltage rise;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference (AUPEC), 2014 Australasian Universities

Conference_Location

Perth, WA

Type

conf

DOI

10.1109/AUPEC.2014.6966541

Filename

6966541