Call For Paper Volume:4 Issue:10 Oct'2017 |

Asymmetrical Dual Bridge 7-level Dc-Link Inverter Topology

Publication Date : 30/04/2015



Author(s) :

Vivek Kumar Singh , Praveen Bansal .


Volume/Issue :
Volume 2
,
Issue 4
(04 - 2015)



Abstract :

Multi-level inverter has a capability to reduced voltage stress across power switches and low total harmonic distortion (THD) output voltage waveform. The variable voltage and frequency requirements the need and increasing trend of using multilevel inverter (MLI) in modern drives and utility applications. The MLI curves nearly sinusoidal output voltage waveforms like that stair case voltage waveform depend of steps. The proposed topology is reduced the size, cost and complexity of the circuit. The paper orients to develop a new variety of dual bridge multilevel inverter (DBMLDCLI) with primary objective to arrive at reduced component count for particular voltage level. By appropriately choosing ratio of voltage sources (Vo:Vn) and connecting parallel to H-bridge with diode, where H- bridge used for increased no of level and diode for current path. This paper present a novel multilevel topology witch is capable of obtaining all additive and subtractive combinations of input DC voltage. The numbers of level depend on DC source arrangement. For this proposed topology different PWM techniques are used for control the switches of the inverter. The performance of the proposed topology is analyzed through MATLAB based simulation studies.


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Asymmetrical Dual Bridge 7-level Dc-Link Inverter Topology

April 29, 2015