Title :
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
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;
Conference_Titel :
Industrial and Information Systems (ICIIS), 2012 7th IEEE International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-2603-2
DOI :
10.1109/ICIInfS.2012.6304792
