Title :
Modulation of Indirect Matrix Converter under unbalanced source voltage condition
Author :
Vekhande, Vishal ; Pimple, B.B. ; Fernandes, B.G.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
This paper deals with the effects of unbalanced source voltages on Indirect Matrix Converter (IMC). A detailed theoretical analysis is presented for the harmonic content of input and output currents when unbalanced voltages are applied at IMC input. A control strategy is proposed, where the modulation index of inverter section of IMC is dynamically varied to eliminate the harmonic components of input currents caused due to unbalanced input voltages. A laboratory prototype is developed to verify the effectiveness of the control strategy. Experimental waveforms and harmonic spectrums show excellent agreement between theoretical analysis and simulation results.
Keywords :
harmonics suppression; invertors; matrix convertors; modulation; power conversion harmonics; rectifiers; doubly fed induction generators; harmonic content elimination; harmonic spectrums; indirect matrix converter; modulation index; unbalanced source voltage condition; Harmonic analysis; Inverters; Matrix converters; Modulation; Switches; Voltage control; Doubly Fed Induction Generator (DFIG); Indirect Matrix Converter (IMC); Unbalanced Grid Voltages;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4577-0542-7
DOI :
10.1109/ECCE.2011.6063773
