Development and Validation of a SiC Based 50 kW Grid-Connected PV Inverter: Preprint

Conference · Wed Oct 10 04:00:00 EDT 2018 · IEEE Energy Conversion Congress and Exposition (ECCE)

DOI:https://doi.org/10.1109/ECCE.2018.8557392· OSTI ID:1477831

Singh, Akanksha ^[1]; Chinthavali, Madhu ^[2]; Sudhoff, Scott ^[3]; Bennion, Kevin S ^[1]; Prabakar, Kumaraguru ^[1]; Feng, Xuhui ^[1]; Wang, Zhiqiang ^[2]; Campbell, Steven ^[2]

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1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
2. Oak Ridge National Laboratory
3. Purdue University

In this digest a 50kW string PV inverter formed using all SiC semiconductor devices is presented. The inverter design includes additively manufactured power block, symmetrical Y-core inductors for ac side filter, and advanced inverter functionality for grid support. This inverter utilizes the conventional three-phase Voltage Source Inverter topology and optimizes the design for SiC based devices. This paper presents the full functional validation of the designed inverter along with quantification of the efficiency and power density. The performance of the inverter for high dc-bus voltage without multi-level topology to exploit SiC advantages is also presented in this digest. The full paper will include details of inverter design, optimization and further experimental validation.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1477831
• Report Number(s): NREL/CP-5D00-70872
• Conference Information: Journal Name: IEEE Energy Conversion Congress and Exposition (ECCE) Journal Volume: 2018
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SiC devices
advanced inverter functions
inverters