TY - JOUR KW - DC power transmission KW - Power converter KW - AC-DC power conversion KW - DC-DC power conversion KW - Losses AU - Daniel L Gerber AU - Fariborz Musavi AU - Omkar Ghatpande AU - Stephen M Frank AU - Jason Poon AU - Richard E Brown AU - Wei Feng AB -

DC microgrids have become a prevalent topic in research in part due to the expected superior efficiency of DC/DC converters compared to their AC/DC counterparts. Although numerous side-by-side analyses have quantified the efficiency benefits of DC power distribution, these studies all modeled converter loss based on product data that varied in component quality and operating voltage. To establish a fair efficiency comparison, this work derives a formulaic loss model of a DC/DC and an AC/DC PFC boost converter. These converters are modeled with identical components and an equivalent input and output voltage. Simulated designs with real components show AC/DC boost converters between 100 W to 500 W having up to 2.5 times more loss than DC/DC boost converters. Although boost converters represent a fraction of electronics in buildings, these loss models can eventually work toward establishing a comprehensive model-based full-building analysis.

BT - Energies DA - 06/2021 DO - 10.3390/en14113131 IS - 11 LA - eng N2 -

DC microgrids have become a prevalent topic in research in part due to the expected superior efficiency of DC/DC converters compared to their AC/DC counterparts. Although numerous side-by-side analyses have quantified the efficiency benefits of DC power distribution, these studies all modeled converter loss based on product data that varied in component quality and operating voltage. To establish a fair efficiency comparison, this work derives a formulaic loss model of a DC/DC and an AC/DC PFC boost converter. These converters are modeled with identical components and an equivalent input and output voltage. Simulated designs with real components show AC/DC boost converters between 100 W to 500 W having up to 2.5 times more loss than DC/DC boost converters. Although boost converters represent a fraction of electronics in buildings, these loss models can eventually work toward establishing a comprehensive model-based full-building analysis.

PY - 2021 EP - 3131 ST - Energies T2 - Energies TI - A Comprehensive Loss Model and Comparison of AC and DC Boost Converters UR - https://www.mdpi.com/1996-1073/14/11/3131https://www.mdpi.com/1996-1073/14/11/3131/pdf VL - 14 ER -