Battery Inverter Experimental Data from NREL Facility

Aggregating experimental data for a 30 kW grid-following battery inverter tested at NREL's Energy Systems Integration Facility. It includes measurements from tests where AC source voltage was varied from 0.9 to 1.1 per unit and frequency from 59 Hz to 61 Hz under four load conditions (100%, 75%, 50%, 25%). Voltages and currents on both the DC and AC sides are recorded.

Use Cases

• Train a model to predict inverter behavior under varying AC source voltage conditions using voltage and current measurements.
• Validate physics-based inverter models by comparing simulated outputs against experimental data from the 100%, 75%, 50%, and 25% load tests.
• Analyze the relationship between DC side and AC side voltages and currents across the tested frequency range from 59 Hz to 61 Hz.

Strengths

• Data is from controlled experiments using a 30 kW off-the-shelf inverter at a national laboratory facility (NREL).
• Tests cover a defined operational range, including four specific load conditions (100%, 75%, 50%, 25%).
• Systematic variation of two key parameters: AC voltage (0.9-1.1 p.u) and frequency (59-61 Hz).

Limitations

• The specific number of data rows and columns is unknown, making it difficult to assess the dataset's scale for ML tasks.
• Data is provided in a BIN file format, which may require specialized tools or libraries for access and parsing.
• The experimental scope is limited to the specific 30 kW inverter and the defined voltage/frequency ranges, which may not generalize to other systems.

Provenance

Source

Department of Energy, experiments performed at NREL's Energy Systems Integration Facility.

Collection Method

Experimental data gathered using a controllable AC supply and controllable DC supply to emulate grid and battery conditions.

Freshness

Last updated in March 2026.

Geography

United States (NREL facility).