Title :
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
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;
Conference_Titel :
Power and Energy Society General Meeting, 2012 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-2727-5
Electronic_ISBN :
1944-9925
DOI :
10.1109/PESGM.2012.6344770
