Dynamic phasor modeling of Modular Multi-level Converters

Author

Deore, Sawata R. ; Darji, Pranav B. ; Kulkarni, Anil M.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India

fYear

2012

fDate

6-9 Aug. 2012

Firstpage

1

Lastpage

6

Abstract

This paper presents the application of dynamic phasors to analyse small signal stability of a Modular Multilevel Converter (MMC) which can be used as a terminal of HVDC transmission system. Unlike a model based on the D-Q transformation, a dynamic phasor model is amenable for eigen-analysis after linearization, as it yields a time invariant model. The dynamic phasor model also includes the control system of the MMC which is based on D-Q variables. Time domain simulation is carried out to validate the model, and it is shown that the model can predict critical gains for instability.

Keywords

HVDC power convertors; HVDC power transmission; T invariance; eigenvalues and eigenfunctions; time-domain analysis; D-Q transformation; HVDC transmission system; MMC control system; critical gains prediction; dynamic phasor modeling; eigen-analysis; modular multilevel converters; small signal stability analyse; Capacitors; Equations; Harmonic analysis; Mathematical model; Switches; Voltage control; Dynamic Phasors; Eigen-Analysis; Modular Multi-level Converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Information Systems (ICIIS), 2012 7th IEEE International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4673-2603-2

Type

conf

DOI

10.1109/ICIInfS.2012.6304792

Filename

6304792