Abstract：Various multilevel inverter topologies have been proposed to enhance the performance of motor drive system. This paper presents a hybrid cascaded multilevel inverter scheme, in which the H-bridge inverter (main inverter) and the 3-level diode clamped inverter (conditioning inverter) are connected together to drive the motors, but only the main inverter needs DC voltage source. The conditioning inverter is supplied by super capacitors to store the braking energy of motors which will be reused. Through the simulations and experiments, this paper validates the feasibility of this new topology and the control strategy. This scheme has a wide range of practical applications, especially in the electric vehicle motor drive and marine propulsion system.
饶建业, 李永东. 带储能单元的新型多电平逆变器及其控制算法[J]. 电工技术学报, 2009, 24(7): 103-109.
Rao Jianye, Li Yongdong. Control Strategies of a New Hybrid Multilevel Inverter With Energy Storage. Transactions of China Electrotechnical Society, 2009, 24(7): 103-109.
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2009, Vol. 24 
