1. Multi-Level Choppers for High Voltage Applications
2. A three-phase multilevel converter for high-power induction motors
3. Manjrekar, M.D. and Lipo, T.A. (1999) A Hybrid Multilevel Inverter Topology for Drive Applications. IEEE-APEC’98, Anaheim, 15-19 February 1998, 523-529.
4. Asiminoaei, L., Blaabjerg, F. and Hansen, S. (2005) Evaluation of Harmonic Detection Methods for Active Power Filter Applications. The Applied Power Electronics Conference (APEC), Vol. 1, 635-641.
5. A New Neutral-Point-Clamped PWM Inverter