Optimal voltage control in ungrounded distribution networks

Author

Xuebei Yu ; Zhang, Dejing ; Ming Jin

Author_Institution

Alstom Grid Inc., Redmond, WA, USA

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

In this paper, an optimal voltage control scheme designed for ungrounded distribution networks is presented. Three-phase unbalanced quantities are decomposed to positive and negative components to decrease the minimization model size. Outer Approximation Algorithm (OAA) is used to solve the created mixed-integer nonlinear programming problem. The optimization model can be easily converted to solve a distribution network power flow problem which can provide a qualified initial solution to OAA solver. The effectiveness of the new scheme has been approved by test case.

Keywords

integer programming; load flow; nonlinear programming; optimal control; power distribution control; power supply quality; underground distribution systems; voltage control; OAA solver; distribution network power flow problem; minimization model size; mixed-integer nonlinear programming problem; negative components; optimal voltage control scheme; optimization model; outer approximation algorithm; positive components; three-phase unbalanced quantity; ungrounded distribution networks; voltage quality; Approximation algorithms; Approximation methods; Capacitors; Linear programming; Load flow; Optimization; Voltage control; Distribution generators; Distribution network; Optimal voltage control; Outer Approximation Algorithm; Ungrounded distribution system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6673002

Filename

6673002