Title :
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
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;
Conference_Titel :
Industry Applications (INDUSCON), 2012 10th IEEE/IAS International Conference on
Conference_Location :
Fortaleza
Print_ISBN :
978-1-4673-2412-0
DOI :
10.1109/INDUSCON.2012.6452393
