Inner current control method for modular multilevel converter applied in motor drive

Author

Cunico, Lucas M. ; De Novaes, Yales Romulo ; Nied, Ademir ; Oliveira, S.V.G.

Author_Institution

Santa Catarina State Univ., Joinville, Brazil

fYear

2012

fDate

5-7 Nov. 2012

Firstpage

1

Lastpage

8

Abstract

This paper presents the modular multilevel converter as medium voltage motor driver. An investigation of the capacitor requirements is performed and a novel control method, based in the inner current control, is proposed. This method can ensure the capacitor balancing as well minimizes the harmonic current in the converter phases. The control method is evaluated by computational simulations of a three-phase driver of a 350 kW, 2.3 kV induction motor. The simulated results have proven the effectiveness of the control structure in the startup procedure and steady state operation.

Keywords

AC-AC power convertors; DC-AC power convertors; electric current control; motor drives; capacitor balancing; capacitor requirements; control structure; converter phases; harmonic current; induction motor; inner current control method; medium voltage motor driver; modular multilevel converter; power 350 kW; startup procedure; steady state operation; three-phase driver; voltage 2.3 kV; Capacitance; Capacitors; Harmonic analysis; Induction motors; Rotors; Steady-state; Voltage control; M²LC; motor driver; multilevel converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications (INDUSCON), 2012 10th IEEE/IAS International Conference on

Conference_Location

Fortaleza

Print_ISBN

978-1-4673-2412-0

Type

conf

DOI

10.1109/INDUSCON.2012.6452393

Filename

6452393