PV inverter experimental data

The increase in power electronic based generation sources require accurate modeling of inverters. Accurate modeling requires experimental data over wider operation range. We used 20 kW off-the-shelf grid following PV inverter in the experiments. We used controllable AC supply and controllable DC supply to emulate AC and DC side characteristics. The experiments were performed at NREL's Energy Systems Integration Facility. Due to the limitations of the DC supply used, inverter is tested under 75%, 50%, 25% load conditions (This dataset does not contain 100% load condition). In the first dataset, for each operating condition, controllable AC source voltage is varied from 0.88 to 1.09 per unit (p.u) with a step value of 0.025 p.u while keeping the frequency at 60 Hz. In the second dataset, under similar load conditions (75%, 50%, 25% ), the frequency of the controllable AC source voltage was varied from 59.4 Hz to 60.45 Hz with a step value of 0.2 Hz. Voltage and frequency range is chosen based on inverter protection. Voltages and currents on DC and AC side are included in the dataset.
2 Data Resources
Name Size Type Resource Description History
Voltage step change 1.86 GB Data This file contains the experimental data from voltage magnitude step change (controllable AC source).
Frequency change 1.46 GB Data This file contains the dataset for changes in frequency (controllable AC source)
Author Information
Kumaraguru Prabakar, Power Systems Engineering, ORCID iD: 0000-0002-2962-0743
Subhankar Ganguly, Energy Systems Integration Facility, ORCID iD: 0000-0003-3307-0614
Yaswanth Nag Velaga, Power Systems Engineering, ORCID iD: 0000-0003-0555-5825
Deepthi Vaidhynathan, Computational Science, ORCID iD: 0000-0001-7990-8887
Cite This Dataset
Prabakar, Kumaraguru, Subhankar Ganguly, Yaswanth Nag Velaga, and Deepthi Vaidhynathan. 2023. "PV inverter experimental data." NREL Data Catalog. Golden, CO: National Renewable Energy Laboratory. Last updated: December 12, 2023. DOI: 10.7799/1914317.
About This Dataset
DOE Project
Scalable Multi-Timescale Analysis Platform Based on System Transient and Dynamic Models
Energy Systems Integration Facility (ESIF)
High Performance Computing Center (HPC)
Funding Organization
Department of Energy (DOE)
Sponsoring Organization
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
Research Areas
Computational Science
Energy Systems Integration
Grid Modernization
View License
Digital Object Identifier