Y-source inverter

Publication Type:
Conference Proceeding
Citation:
2014 IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2014, 2014
Issue Date:
2014-01-01
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This paper introduces a new 3-phase Y-source inverter whose gain is presently not matched by classical impedance-network-based inverters operating at the same duty ratio. The proposed network uses a tightly coupled transformer with three windings. By squeezing the shoot-through range while keeping higher boost, the inverter can operate at a higher modulation index, thereby minimizing switching device stress and providing better output power quality. In addition, the inverter has more degrees of freedom for setting the voltage gain and modulation index than other classical impedance-source networks. This design flexibility was proven mathematically, and is supported by simulations carried out to prove the concept and validate the analysis. © 2014 IEEE.
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