Open-source Distributed Energy Resources (DER) Model that represents IEEE Standard 1547-2018 requirements for steady-state and dynamic analyses
Project description
Open-source Distributed Energy Resources (OpenDER) Model
EPRI’s OpenDER model aims to properly represent steady-state and dynamic behavior of distributed energy resources (DERs). The model follows interconnection standards or grid-codes and is informed by the observed behavior of commercial products. Version 1.0 of the model assesses photovoltaic (PV) DER behavior according to the capabilities and functionalities required by the IEEE standard 1547-2018. This first-of-its-kind model can be used to run snapshot, Quasi-Static Time Series (QSTS), and a variety of dynamic analyses to study the impacts of DERs on distribution operations and planning.
This project is licensed under the terms of the BSD-3 clause license.
Resources
OpenDER is under active development. Use the following resources to get involved.
Development Objective
Harmonize accurate interpretations of the IEEE Std 1547-2018 DER interconnection standard among stakeholders, including utilities, distribution analysis tool developers, and original equipment manufacturers (OEMs).
Build consensus through an open-to-all DER Model User’s Group (DERMUG), which will utilize developed model specifications and codes and provide feedback for continuous improvement of the OpenDER model.
Help the industry properly model the DERs that are (or to be) grid interconnected and evaluate the associated impacts on distribution circuits.
Overall Block Diagram
Dependencies
Python >= 3.7
numpy
pandas
matplotlib
Dependencies of the package are auto-installed by pip command below.
Installation
pip install opender
Example of Using the DER Model
Example script: main.py
This example generate DER output power in a dynamic simulation to demonstrate DER trip and enter service behavior.
The grid voltage is set to be alternating between 1 and 1.11 per unit every ~10 minutes.
DER should be observed to enter service and trip periodically.
Please ensure python PATH is set in the environment variables before running the batch file
Unit tests
Dependency: pytest
Execution command: pytest path-to-package\tests
Changelog
1.0.0 (2022-05-17)
First release
Model for photovoltaic (PV) DERs, including all smart inverter functions defined in IEEE Standard 1547-2018, as well as trip and enter service behaviors
Output active and reactive power (P, Q) for power flow analysis
Suitable for both steady-state, quasi-static time series (QSTS) and dynamic simulations
Project details
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