Reddy, B.V.; Somasekhar, V.T.; Kalyan, Y., "Decoupled Space-Vector PWM Strategies for a Four-Level Asymmetrical Open-End Winding Induction Motor Drive With Waveform Symmetries," Industrial Electronics, IEEE Transactions on , vol.58, no.11, pp.5130,5141, Nov. 2011
Yenduri, K.; Sensarma, P., "Improved maximum power extraction strategy for PMSG based wind energy conversion system," Power Electronics, Machines and Drives (PEMD 2012), 6th IET International Conference on , vol., no., pp.1,6, 27-29 March 2012