dynawo/dynawo
Oct 2024 – Jun 2026
13 Months active
Languages Used
ModelicaCMakePythonXMLCSVC++
Technical Skills
Electrical EngineeringModelicaSimulationCode OrganizationModelica LanguageParameterization
Joy El Feghali
PROFILE
Joy El Feghali
Over thirteen months, this developer advanced the dynawo/dynawo repository by designing and refactoring power systems simulation models, focusing on renewable energy and control systems. They delivered new Modelica-based features such as WECC generator and PV models, enhanced grid-forming converter logic, and improved transformer and battery management modules. Their technical approach emphasized modular code organization, parameterization, and robust testing, using C++, Modelica, and Python to ensure simulation accuracy and maintainability. Through targeted bug fixes and architectural improvements, they strengthened model reliability, streamlined initialization, and standardized measurement logic, supporting both production readiness and future extensibility across complex electrical engineering workflows.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
24Total
Bugs
6
Commits
24
Features
15
Lines of code
482,624
Activity Months13
Your Network
81 peopleSame Organization
@rte-france.com62
Shared Repositories
19
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Dimitri BaronMember
Edouard ChevreauMember
ErwanGuichard49Member
Erwan GuichardMember
Erwann GOASGUENMember
Florentine RosiereMember
Martin FrankeMember
Work History
June 2026
1 Commits
Jun 1, 2026June 2026 monthly summary for dynawo/dynawo focused on stability and correctness of WT3 examples. No new features were delivered this month; the primary effort was a targeted bug fix to correct references in WT3 examples across OM and Dynawo, ensuring accurate representation and reproducibility in simulations and downstream tooling.
1 Commits
Jun 1, 2026June 2026 monthly summary for dynawo/dynawo focused on stability and correctness of WT3 examples. No new features were delivered this month; the primary effort was a targeted bug fix to correct references in WT3 examples across OM and Dynawo, ensuring accurate representation and reproducibility in simulations and downstream tooling.
June 2026
March 2026
5 Commits • 2 Features
Mar 1, 2026March 2026 monthly summary for dynawo/dynawo focusing on stability, feature expansion, and model parameter improvements. Highlights include restoring timeline stability and UPu equation correctness, delivering a new PEIR package, and applying parameter enhancements to omegaGPu and WECC type 3 models to improve performance and control.
March 2026
5 Commits • 2 Features
Mar 1, 2026March 2026 monthly summary for dynawo/dynawo focusing on stability, feature expansion, and model parameter improvements. Highlights include restoring timeline stability and UPu equation correctness, delivering a new PEIR package, and applying parameter enhancements to omegaGPu and WECC type 3 models to improve performance and control.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for dynawo/dynawo: Focused on delivering reactive power control enhancements through the GeneratorPTanPhi model to improve grid stability under frequency variations. Feature delivered under ticket #3926, with concrete implementation committed to the repository. No major bugs reported or fixed this month for this repo.
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for dynawo/dynawo: Focused on delivering reactive power control enhancements through the GeneratorPTanPhi model to improve grid stability under frequency variations. Feature delivered under ticket #3926, with concrete implementation committed to the repository. No major bugs reported or fixed this month for this repo.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for dynawo/dynawo focusing on testing improvements for voltage-dependent generator models. Delivered targeted test coverage for voltage variations, strengthening validation, reliability, and readiness for production deployments.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for dynawo/dynawo focusing on testing improvements for voltage-dependent generator models. Delivered targeted test coverage for voltage variations, strengthening validation, reliability, and readiness for production deployments.
September 2025
1 Commits
Sep 1, 2025Sep 2025: Focused on reliability and maintainability of Dynawo delay logic. Implemented OffDelay signal logic refinement in the dynawo library by refactoring the algorithm to use a when clause for input-change handling, clarifying the delay behavior and improving robustness within the simulation environment. This change is tracked by commit 6eb132f22c43aa8d3a90829485aded17434c83ea (#3820 Update offDelay).
1 Commits
Sep 1, 2025Sep 2025: Focused on reliability and maintainability of Dynawo delay logic. Implemented OffDelay signal logic refinement in the dynawo library by refactoring the algorithm to use a when clause for input-change handling, clarifying the delay behavior and improving robustness within the simulation environment. This change is tracked by commit 6eb132f22c43aa8d3a90829485aded17434c83ea (#3820 Update offDelay).
September 2025
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for dynawo/dynawo: Delivered a targeted refactor to initialization models to remove the 'flow' keyword from complex current variables, converting them to regular variables across converters, HVDC systems, loads, motors, shunts, injectors, and transformers. This standardizes variable semantics across components, reducing maintenance burden and enabling safer future extensions. Implemented in commit 09104b07941f976ead83e1bd95064661da3f0db5 with message '#3604 Remove flow from variables outside connectors'.
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for dynawo/dynawo: Delivered a targeted refactor to initialization models to remove the 'flow' keyword from complex current variables, converting them to regular variables across converters, HVDC systems, loads, motors, shunts, injectors, and transformers. This standardizes variable semantics across components, reducing maintenance burden and enabling safer future extensions. Implemented in commit 09104b07941f976ead83e1bd95064661da3f0db5 with message '#3604 Remove flow from variables outside connectors'.
June 2025
3 Commits • 2 Features
Jun 1, 2025June 2025 performance summary for dynawo/dynawo: Implemented WTG model enhancements and refactor, added 3/4A/4B Modelica support with external variables, and updated build/config; introduced custom Dynawo limiter blocks for equal-threshold scenarios; fixed BESS current limit calculation logic based on SOC thresholds; expanded test coverage with new cases and preassembled models to improve reliability and deployment readiness.
3 Commits • 2 Features
Jun 1, 2025June 2025 performance summary for dynawo/dynawo: Implemented WTG model enhancements and refactor, added 3/4A/4B Modelica support with external variables, and updated build/config; introduced custom Dynawo limiter blocks for equal-threshold scenarios; fixed BESS current limit calculation logic based on SOC thresholds; expanded test coverage with new cases and preassembled models to improve reliability and deployment readiness.
June 2025
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 (2025-03) delivered a major transformer-modeling refactor in dynawo/dynawo, enhanced initialization reliability, and corrected OpenModelica example data. These changes establish a more modular, maintainable architecture, reduce startup data flow issues, and increase confidence in simulation results for users and contributors.
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 (2025-03) delivered a major transformer-modeling refactor in dynawo/dynawo, enhanced initialization reliability, and corrected OpenModelica example data. These changes establish a more modular, maintainable architecture, reduce startup data flow issues, and increase confidence in simulation results for users and contributors.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 (dynawo/dynawo) delivered a major Modelica refactor and control enhancements for the EPRI Grid Forming (GFM) converter, improving maintainability, expandability, and simulation robustness. Implemented new voltage and current control models and added a fault-scenario test to validate behavior under edge conditions. The work strengthens Grid Forming capabilities and positions the project for smoother future iterations, with focused testing reducing regression risk.
1 Commits • 1 Features
Feb 1, 2025February 2025 (dynawo/dynawo) delivered a major Modelica refactor and control enhancements for the EPRI Grid Forming (GFM) converter, improving maintainability, expandability, and simulation robustness. Implemented new voltage and current control models and added a fault-scenario test to validate behavior under edge conditions. The work strengthens Grid Forming capabilities and positions the project for smoother future iterations, with focused testing reducing regression risk.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 (2025-01) focused on improving maintainability and scalability of WECC-related parameters in dynawo/dynawo. Delivered a major refactor of the WECC parameter packaging by reorganizing parameter definitions into subdirectories by type (Mechanical, REEC, REGC, REPC) and updating import paths across WECC models to reflect the new structure. This organization enables safer future changes, easier onboarding, and reduced risk of misconfigurations during model assembly. Major bugs fixed: None reported this month. Overall impact and accomplishments: The packaging reorganization reduces maintenance overhead, accelerates future feature work, and improves cross-model consistency and clarity of parameter management. This work lays a stronger foundation for future model enhancements and easier collaboration across the WECC-related components. Technologies/skills demonstrated: Code refactoring, module/package reorganization, import path management, cross-model integration, and disciplined version control.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 (2025-01) focused on improving maintainability and scalability of WECC-related parameters in dynawo/dynawo. Delivered a major refactor of the WECC parameter packaging by reorganizing parameter definitions into subdirectories by type (Mechanical, REEC, REGC, REPC) and updating import paths across WECC models to reflect the new structure. This organization enables safer future changes, easier onboarding, and reduced risk of misconfigurations during model assembly. Major bugs fixed: None reported this month. Overall impact and accomplishments: The packaging reorganization reduces maintenance overhead, accelerates future feature work, and improves cross-model consistency and clarity of parameter management. This work lays a stronger foundation for future model enhancements and easier collaboration across the WECC-related components. Technologies/skills demonstrated: Code refactoring, module/package reorganization, import path management, cross-model integration, and disciplined version control.
December 2024
2 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for dynawo/dynawo focusing on key accomplishments, business value, and technical achievements. The period prioritized expanding testing coverage for GovHydro4 and enabling data-driven control logic through a new Modelica model, with no explicit bug fixes reported in the provided data.
2 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for dynawo/dynawo focusing on key accomplishments, business value, and technical achievements. The period prioritized expanding testing coverage for GovHydro4 and enabling data-driven control logic through a new Modelica model, with no explicit bug fixes reported in the provided data.
December 2024
November 2024
3 Commits • 2 Features
Nov 1, 2024Monthly work summary for 2024-11 (dynawo/dynawo). Focused on delivering modular PV modeling enhancements (WECC) and per-unit measurement standardization to improve modeling accuracy, interoperability, and business value for WECC studies and IEC Modelica models. The work emphasizes refactors and parameter updates to enable flexible PV configurations and higher precision power measurements across the Dynawo stack.
November 2024
3 Commits • 2 Features
Nov 1, 2024Monthly work summary for 2024-11 (dynawo/dynawo). Focused on delivering modular PV modeling enhancements (WECC) and per-unit measurement standardization to improve modeling accuracy, interoperability, and business value for WECC studies and IEC Modelica models. The work emphasizes refactors and parameter updates to enable flexible PV configurations and higher precision power measurements across the Dynawo stack.
October 2024
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — Focused feature delivery for enhanced WECC generator converter modeling in dynawo/dynawo, with targeted validation groundwork and robust git traceability.
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — Focused feature delivery for enhanced WECC generator converter modeling in dynawo/dynawo, with targeted validation groundwork and robust git traceability.
October 2024
Activity
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Quality Metrics
Correctness92.4%
Maintainability88.8%
Architecture90.8%
Performance84.2%
AI Usage22.6%
Skills & Technologies
Programming Languages
C++CMakeCSVModelicaPythonXML
Technical Skills
Battery Management SystemsC++C++ programmingCode OrganizationCode RestructuringControl SystemsControl Systems EngineeringData AnalysisElectrical EngineeringElectrical Engineering SimulationEmbedded SystemsModelicaModelica DevelopmentModelica LanguageOpenModelica
Repositories Contributed To
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