Analytical tool for designing MMC parameters to improve damping of transients

Author

Haihao Jiang ; Joos, Geza ; Ooi, B.T.

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada

fYear

2014

fDate

27-31 July 2014

Firstpage

1

Lastpage

4

Abstract

The analytical tool is based on linearization about the steady-state solution of the nonlinear first order differential equations modeling the MMC. The resultant linear dynamic equation of the perturbation state variables is time periodic. The state-transition matrix is computed by numerical integration and its eigenvalues are applied to determine small signal stability and the sensitivity of the eigenvalues to parameter changes are used as guide in designing damping. The method is based on the Floquet-Liapunov Theorem.

Keywords

eigenvalues and eigenfunctions; integration; matrix algebra; nonlinear differential equations; power convertors; transient analysis; Floquet-Liapunov theorem; MMC parameter design; analytical tool; eigenvalues sensitivity; linear dynamic equation; linearization; modular multilevel converter; nonlinear first order differential equations modeling; numerical integration; perturbation state variables; small signal stability; state-transition matrix; steady-state solution; transient damping; Capacitors; Converters; Damping; Eigenvalues and eigenfunctions; Equations; Mathematical model; Steady-state; eigenvalues; fast convergence; linearized matrix; modular multilevel converter (MMC); nonlinearity; small signal stability; state transition matrix; time periodic;

fLanguage

English

Publisher

ieee

Conference_Titel

PES General Meeting | Conference & Exposition, 2014 IEEE

Conference_Location

National Harbor, MD

Type

conf

DOI

10.1109/PESGM.2014.6938925

Filename

6938925