TY - GEN
T1 - Design optimization of a 1500 v GaN-Based solar inverter using flying capacitor multi-level converter stages
AU - Stillwell, Andrew
AU - Pilawa-Podgurski, Robert C.N.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - Utility scale solar installations are adopting 1500 V solar inverters with reduced cabling and installation costs. Flying capacitor multi-level (FCML) inverters with 650 V transistors offer unique system benefits, leading to lower volume and weight reductions while improving upon system efficiency. Here, we present the design optimization of FCML inverters for 1500 V with considerations of different switches, number of levels, switching frequency and passive components. The optimization informed the design of a 5-level FCML with 650 V GaN switches which was demonstrated successfully in hardware.
AB - Utility scale solar installations are adopting 1500 V solar inverters with reduced cabling and installation costs. Flying capacitor multi-level (FCML) inverters with 650 V transistors offer unique system benefits, leading to lower volume and weight reductions while improving upon system efficiency. Here, we present the design optimization of FCML inverters for 1500 V with considerations of different switches, number of levels, switching frequency and passive components. The optimization informed the design of a 5-level FCML with 650 V GaN switches which was demonstrated successfully in hardware.
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U2 - 10.1109/ECCE.2019.8913007
DO - 10.1109/ECCE.2019.8913007
M3 - Conference contribution
AN - SCOPUS:85076753164
T3 - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
SP - 4605
EP - 4612
BT - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Y2 - 29 September 2019 through 3 October 2019
ER -