Releases: Critical-Infrastructure-Systems-Lab/PowNet
Releases · Critical-Infrastructure-Systems-Lab/PowNet
PowNet v2.0
This is an entirely new version of PowNet that includes the following key features:
- The underlying algebraic modeling language is gurobipy, which replaces Pyomo. gurobipy is faster than Pyomo and has lower memory requirements.
- A model created with PowNet can be solved with Gurobi as well as the free, open-source, solver HiGHS.
- The mathematical formulation of PowNet is based on the 'strong' MILP formulations proposed by Knueven et al. (2020).
- DC power flow is represented through different methods proposed by Hörsch et al. (2018)). These include both voltage angle and cycle flow formulations.
- The implementation of PowNet is modular, so it allows users to include new formulations for a given constraint.
- Models for a given country are built fully from .csv files.
- Visualization of the model output has been standardised w.r.t. previous versions.
PowNet v1.3
Changes since v1.2
- Fix: Ramp Rate Constraints at Segment B.9 are modified to fix ramping constraints #7
- Fix: Up/Down Time Constraints at Segment B.9 are modified to fix minUp/minDown constraint violation within the same horizon. Note that the constraint violation across horizon is not fixed, but we checked that the violation is minimal in a run #8
- Enhancement: Derate factors of dispatchable units are now hourly inputs (instead of yearly) and are provided in separate csv files saved as ‘deratef_xxxx’, where ‘xxxx’ denotes the simulation year #9
- Enhancement: Options for applying time limit to optimization is added
- Enhancement: Input and output files are organized into different folders
- Enhancement: Additional hydropower data are provided in input/hydro folder
Release notes
- Third release, date: 15-Apr-2021.
- Archived in Zenodo with doi: 10.5281/zenodo.4688309
- Contributors: Ng Jia Yi, AFM Kamal Chowdhury, Stefano Galelli
PowNet v1.2
Changes since v1.1
- Fix: Logical Constraints at Segment B.9 are modified to fix a bug that used to initialize the binary decision variables (on and switch) for each horizon (e.g., 24 hours).
- Enhancement: Derate factors of dispatchable units – the climate-dependent variable which can vary for each year in simulation over multiple years – are now provided in separate csv files with column heading as ‘deratef_xxxx’, where ‘xxxx’ denotes the simulation year (e.g., 2016, 2017 etc.).
- Enhancement: Storing process of outputs in the solver script slightly reduced the computational requirements.
Release notes
- Second release, date: 08-Sep-2020.
- Archived in Zenodo with doi: 10.5281/zenodo.4020167.
- Contributors: Rachel Koh, AFM Kamal Chowdhury, Stefano Galelli