Sequence-based control for large-scale power electronics networks

Author

Mazumder, S.K. ; Acharya, K.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois at Chicago, Chicago, IL, USA

fYear

2009

Firstpage

1

Lastpage

9

Abstract

A switching-sequence-based control scheme for power electronics networks is presented in this paper. The proposed scheme guarantees global stability while meeting predefined performance criteria. First, using techniques based on composite Lyapunov functions and piecewise-linear models of the system, the set of switching sequences that guarantee global stability, is determined. Next, by solving optimization problems using predefined cost functions for the saturated (transient) and unsaturated (steady-state) regions of operation, the optimal switching sequence and the duration of time spent in it is determined. The application of the proposed scheme is demonstrated using a parallel-connected network of three-phase inverters.

Keywords

Lyapunov methods; circuit simulation; distribution networks; piecewise linear techniques; power electronics; transient analysis; Lyapunov functions; global stability; large-scale power electronics networks; piecewise-linear models; switching-sequence-based control scheme; three-phase inverters; Cost function; Inverters; Large-scale systems; Lyapunov method; Piecewise linear techniques; Power electronics; Power system modeling; Power system stability; Stability criteria; Steady-state; Switching power converters; global stability; optimal control; piecewise linear systems; switching sequence;

fLanguage

English

Publisher

ieee

Conference_Titel

Power & Energy Society General Meeting, 2009. PES '09. IEEE

Conference_Location

Calgary, AB

ISSN

1944-9925

Print_ISBN

978-1-4244-4241-6

Type

conf

DOI

10.1109/PES.2009.5275896

Filename

5275896