%0 Journal Article
%T HIGH PERFORMANCE CASCADED MULTILEVEL INVERTER FED BRUSHLESS DC MOTOR DRIVE
%A A. Purna Chandra Rao
%A Y.P. Obulesh
%A Ch. Sai Babu
%J International Journal of Engineering Sciences and Emerging Technologies
%D 2013
%I IAET
%X In this paper, a modular three-phase multilevel inverter topology for brushless dc motor drive has been proposed. Unlike conventional H Bridge inverter, this topology is based on power cells connected in cascade, each power cell is consisting of two inverter legs in series. In this new topology input voltage is Vdc/2 ,when both the switches in same leg conducts simultaneously means the short circuit of power source, at this point half power is dissipated through the switch and the severity of explosion of power cell is reduced to half and it enhances the reliability of the system and cost effectual. A detailed analysis of the proposed structure with five levels are carried out using pulse width-modulation phase-shifted multicarrier modulation. Finally five level Cascaded multilevel inverter fed Brushless dc motor drive is implemented in Matlab/ Simulink and simulation results are presented.
%K Cascade systems
%K inverters
%K multilevel systems
%K pulse width modulation (PWM). Medium-voltage drives
%K multilevel converter topologies.
%U http://www.ijeset.com/media/0001/3N10_IJESET0502122_v5_iss2_88to96.pdf