Authors : M.S. Djebbar and H. Benalla
Abstract: The research presents a comparative study between two and three levels commanded PWM rectifiers current. The study is based on the performance analysis of each type of rectifier, through cascades made up of 2 and 3 levels commanded PWM rectifiers and three-phase structure NPC inverters, fuelling a three-phase asynchronous motor, regarded as a burden-phase balanced the output of the inverter. For that we present at first deal with modeling and control of 2 types of rectifiers. At the end we will address the problem of the mid-point of the inverter at three levels whose interest to have a stable system of tension at the terminals of the machine. The simulation results obtained are quite satisfactory.
M.S. Djebbar and H. Benalla , 2008. Rectifiers Comparative Study Between Two Levels and Multilevels PWM Order. International Journal of Electrical and Power Engineering, 2: 365-376.