Eigenvalue and robustness analysis of a decentralized voltage control scheme for an islanded multi-DER microgrid

Author

Etemadi, A.H. ; Iravani, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

fYear

2012

fDate

22-26 July 2012

Firstpage

1

Lastpage

8

Abstract

This paper presents the results of an eigenvalue and robustness analysis of a multi-DER islanded microgrid voltage control scheme. The configuration, parameters, and linear time-invariant (LTI) state-space model of the microgrid are provided. The control strategy, control parameters, and the LTI state-space model of the closed-loop system are also given. An eigenvalue analysis is performed to investigate the dynamic behavior of the study system as microgrid electrical parameters and control gains change. A robustness analysis of the control strategy using the notion of real stability radius is carried out and results are presented. A PSCAD/EMTDC simulation case study is carried out to verify the results of eigenvalue/robustness analysis.

Keywords

closed loop systems; distributed power generation; eigenvalues and eigenfunctions; power distribution control; power system stability; robust control; state-space methods; voltage control; LTI; PSCAD-EMTDC simulation; closed-loop system; decentralized voltage control scheme; eigenvalue analysis; linear time-invariant state-space model; microgrid electrical parameter; multiDER islanded microgrid; real stability radius; robustness analysis; Closed loop systems; Density estimation robust algorithm; Eigenvalues and eigenfunctions; Power system stability; Robustness; Stability analysis; Eigenvalue analysis; islanded mode; microgrid control; participation factors; robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2012 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4673-2727-5

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PESGM.2012.6344770

Filename

6344770