PROJECT TITLE :

Dual Buck Inverter with Series Connected Diodes andSingle Inductor - 2016

ABSTRACT:

In a very DC-AC system, some issues could threaten the reliability of the whole system, like the shoot through issue and also the failure of reverse recovery. Some methods are proposed to boost the reliability of the converters. The twin buck inverters can solve the above problems without adding dead time but the twin buck topology incorporates a main drawback of low magnetic utilization which increases the amount and weight of the system. This paper firstly summarizes the ancient twin buck topologies together with a quite single inductor dual buck inverter that will make full use of the inductance. Then a technique to improve the reliability of the MOSFET inverter is proposed. A reasonably novel dual buck inverter with series connected diodes and single inductor is introduced. The novel inverter retains the dual buck topologies' advantage of high reliability and can create full use of the inductance. Also, compared to the traditional single inductor twin buck topology, the controlling strategy of the proposed inverter is easier. Finally, the simulation and experimental results verified the theoretical analysis.