PROJECT TITLE :

Quasi-Z-Source Inverter With a T-TypeConverter in Normal and Failure Mode - 2016

ABSTRACT:

This paper presents a three-phase multilevel quasi-Z-supply inverter (qZSI) topology operating in traditional and fault-tolerant operation mode. This structure consists by 2 symmetrical quasi-Z-source networks and a three-phase T-kind inverter. Besides the intrinsic blessings of multilevel voltage source inverters, the proposed structure is additionally characterised by their semiconductor fault tolerance capability. This feature is solely obtained through changes on the modulation scheme when the semiconductor fault and does not require additional additional-phase legs or collective switching states. In sure fault types, the reduction of the output power capability can be compensated by the boost characteristic of the qZSI. The fault-tolerant behavior of the proposed topology is demonstrated by several simulation results of the converter in traditional and fault condition. To validate the characteristics of this multilevel qZSI, an experimental prototype was conjointly engineered to experimentally confirm the results.