dynawo/dynawo
Nov 2024 – Sep 2025
8 Months active
Languages Used
ModelicaCMakePythonXMLCSV
Technical Skills
Code OrganizationModelica LanguageParameterizationPower Systems SimulationRenewable Energy ModelingSoftware Refactoring
Joy El Feghali
PROFILE
Joy El Feghali
Joy Elfeghali contributed to the dynawo/dynawo repository by developing and refactoring advanced power systems models, focusing on modularity, maintainability, and simulation accuracy. She enhanced Modelica-based PV, wind turbine, and transformer models, reorganized parameter packaging for WECC components, and improved initialization and delay logic for robust simulation workflows. Her work included implementing new control logic, refining per-unit measurement standards, and expanding test coverage to validate edge cases. Using Modelica, Python, and CMake, Joy addressed both feature development and bug fixes, demonstrating depth in control systems engineering and electrical simulation while ensuring the codebase remains scalable and easier to maintain.
Overall Statistics
Feature vs Bugs
77%Features
Repository Contributions
15Total
Bugs
3
Commits
15
Features
10
Lines of code
280,302
Activity Months8
Your Network
73 people
Work History
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.
Activity
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Quality Metrics
Correctness92.0%
Maintainability90.0%
Architecture90.6%
Performance82.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CMakeCSVModelicaPythonXML
Technical Skills
Battery Management SystemsCode OrganizationCode RestructuringControl SystemsControl Systems EngineeringData AnalysisElectrical EngineeringElectrical Engineering SimulationEmbedded SystemsModelicaModelica DevelopmentModelica LanguageOpenModelicaPackage ManagementParameterization
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