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Mondal, Gopal and Gopakumar, K and Tekwani, PN and Levi, Emil (2007) A Multilevel inverter structure with cascaded two level and three level inverters for IM drive with CMV elimination and DC link capacitor voltage balancing. In: Conference Record of the 2007 IEEE Industry Applications Conference, 2007. 42nd IAS Annual Meeting. , 23-27 Sept. 2007 , New Orleans, LA .
Mondal, Gopal and Sivakumar, K and Ramchand, Rijil and Gopakumar, K and Levi, Emil (2009) A Dual Seven-Level Inverter Supply for an Open-End Winding Induction Motor Drive. In: IEEE Transactions on Industrial Electronics, 56 (5). pp. 1665-1673.