Metadata-Version: 2.1
Name: opender
Version: 2.0.1
Summary: Open-source Distributed Energy Resources (DER) Model that represents IEEE Standard 1547-2018 requirements for steady-state and dynamic analyses
Home-page: https://github.com/epri-dev/opender
Author: Yiwei Ma, Wei Ren, Paulo Radatz, Jithendar Anandan
Author-email: yma@epri.com, wren@epri.com, pradatz@epri.com
License: BSD
Project-URL: Homepage, https://www.epri.com/OpenDER
Project-URL: Model Specification, https://www.epri.com/research/products/000000003002021694
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: Microsoft :: Windows
Classifier: Programming Language :: Python :: 3.7
Classifier: Topic :: Utilities
Requires-Python: >=3.7
Description-Content-Type: text/x-rst
Provides-Extra: dev
License-File: LICENSE.txt

.. figure:: https://raw.githubusercontent.com/epri-dev/OpenDER/develop_req_SQA/docs/logo.png
    :alt: Open-source Distributed Energy Resources (OpenDER) Model

EPRI’s OpenDER model aims to accurately represent steady-state and dynamic behaviors of inverter-based distributed
energy resources (DERs). The model follows interconnection standards or grid-codes and is informed by the observed
behaviors of commercial products. Currently, model version 2.0 includes photovoltaic (PV) and battery energy storage
system (BESS) DER behaviors 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.


.. |GitHub license| image:: https://img.shields.io/badge/License-BSD_3--Clause-blue.svg
   :target: https://github.com/epri-dev/opender/blob/master/LICENSE.txt

Resources
---------
OpenDER is under active development. Use the following resources to get involved.

* EPRI OpenDER homepage (`link <https://www.epri.com/OpenDER>`__)

* Model specification: IEEE 1547-2018 OpenDER Model: Version 2.0, EPRI, Palo Alto, CA: 2022. 3002025583
  (`link <https://www.epri.com/research/products/000000003002025583>`__)

Development Objective
---------------------
* Harmonize accurate interpretations of the IEEE Std 1547-2018 DER interconnection standard among all the 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 EPRI 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 accurately.

Overall Block Diagram
---------------------
.. figure:: https://raw.githubusercontent.com/epri-dev/OpenDER/develop_req_SQA/docs/blockdiagram.png
    :width: 900

Dependencies
------------
Python >= 3.7

numpy

pandas

matplotlib

Dependencies of the package are auto-installed by pip command below.

Installation
------------
pip install opender





Changelog
=========
2.0.1 (2023-03-21)
------------------
* Fixed a bug where enter service randomized enter delay does not behave as expected
* Fixed a bug where momentary cessation does not behave as expected

2.0.0 (2023-03-20)
------------------
* Changed all units of nameplate rating to the base unit Watt/var/VA, from kW/kvar/kVA in Version 1.0.
* Added one time delay feature to represent the DER active and reactive grid support functions’ reaction time, and a first order lag for in applicable voltage measurement.
* Added Battery Energy Storage System (BESS) DER specific functions including State-of-Charge (SOC) calculation, and their corresponding model input parameters.
* Updated applicable smart inverter functions to consider BESS DER behaviors, including volt-watt, active power limit, and watt-var functions.
* Changed the DER operation status from ON/OFF to “Continuous Operation”, “Mandatory Operation”, “Momentary Cessation”, “Trip”, etc., to better capture the DER ride-through status, and its performance in different ride-through modes.
* Added DER ride-through performance module, which includes the DER performance under different ride-through modes, including Momentary Cessation, etc.
* Added DER model output options as current source and voltage source behind impedance.


1.0.2 (2022-07-18)
------------------
* Improve model input validity check process

1.0.1 (2022-06-17)
------------------
* Include parameter csv files into the PyPI release

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
