Comparison of Isolated DC-DC Converters for Low/Medium Voltage Solid State Transformer applications

Comparison of Isolated DC-DC Converters for Low/Medium Voltage Solid State Transformer applications

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This paper presents a comparative evaluation of isolated dc-dc converter topologies used in Solid State Transformers (SST) meant for low/medium voltage standalone applications.The SST architecture redken shades eq 07m driftwood is constructed with Power Factor Corrected - Continuous Conduction Mode (PFC-CCM) ac-dc converter for front end rectification and a single phase bridge inverter for the final inversion process.The performance of the SST is evaluated with five market-ready isolated dc-dc converter topologies, push-pull, full-bridge, half-bridge, LLC half- bridge and LLC with synchronous rectification.

The evaluation is based on the overall system efficiency, part count, system losses, voltage regulation capability, product lifetime and mean time between failures (MTBF).PowerEsim, a result-oriented computer aided design tool with a huge databank of real-time depileve easy clean circuits and components available in the market is used for performance assessment of the aforementioned topologies.