Gridcal

Latest version: v5.0.18

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5.0.11

- Added fluid transport problem
- Overall bug fix
- OR Models fix themselves when infeasible

5.0.2

- Massive refactor to allow multiple bus-branch diagrams and maps.

- The great split: Now there are two packages: `GridCal` which delas with the graphical user interface and `GridCalEngine` that provides all the engine functionality without Qt dependencies.

- MIP auto-healing: OPF simuations are always feasible by properly relaxing infeasible ones.

- Added cutting edge investments evaluation. This will be evolved in future releases.

- API naming unification

- Overall refactoring and bug fixing

4.7.0

- Added special contingency, Contingency Groups, Investment and Investment group objects
- Added contingency planner GUI
- Added proper QT-based maps
- Refactored Time series to accurately reflect any change in the time series
- Refactored the contingency analysis to use contingency groups and reflect any grid change
- Overall bug fixes

![Captura desde 2023-04-21 16-49-15](https://user-images.githubusercontent.com/13423311/233796152-1c4c6a31-8923-4bb3-9605-a3a6dcc3b0c7.png)

4.5.5

- Improvements to CIM import
- Improvements to PSSe .raw imports
- Improvements to Alliander PGM support
- Improvements to inter-area net transfer capacity calculation
- Implemented new json file filters (.ejson3)
- Added profile sparsity in .ejson3 export.
- Added Newton Power Analytics support
- Better coordinates from latitude/longitude conversion by removing the often, massive offset.
- Many small bugs resolved.

4.5.1

- Now the short circuit includes the loading results again (bug fix)
- Merged Short circuit contribution from user "poypoyan"
- The HELM algorithm is now able to stop before reaching the iteration limit
- Added HiGHS as an optional MIP solver
- Added NTC optimization time series
- Tweak improvements in the NTC optimization calculation
- Moved to the more standard ZIP model, instead of the embedded ZIP model
- Further Bentayga Integration:
- Translated the power flow report
- Added fast decoupled power flow
- Refactored the code for all power flow numerical methods (No external changes should be appreciated)
- Cleaned the backtracking process in Newton-Raphson

4.4.5

- Integrated Bentayga's PTDF / LODF calculation
- Integrated the HiGHS solver into the custom pulp implementation
- Added HVDC oscillation control when acting in free mode

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