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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

  • Winding schemes for square and foil windings

Changed

  • give time domain simulation examples the prefix 'experimental_' to avoid misunderstandings

Fixed

  • Add winding insulation to the inductor optimization example
  • Fixed many GUI issues. GUI is still experimental

0.5.4 - 2024-07-01

Fixed

  • Require materialdatabase 0.3.0 for full materials compatibility

0.5.3 - 2024-05-23

Added

  • Conductor placing strategies

0.5.2 - 2024-04-30

Added

  • log_material.json output for material logging information

Fixed

  • Improved non-linear solver, as there were some one-shot results without any iteration
  • Wrong displayed currents when using excitation_sweep() with complex currents
  • Fixed incomplete python package in version 0.5.1

0.5.1 - 2024-02-06

Fixed

  • Fix documentation issues
  • Fix material database dependency issues

0.5.0 - 2024-02-06

Added

  • various integration tests, unit tests for materialdatabase
  • three winding transformer
  • center-tapped transformer drawing schemes
  • stacked transformer
  • parallel connection of solid turns

Changed

  • API has lots of changes. Check out the examples and the documentation.

Updated

  • materialdatabase: material loading and interpolation of operation point

0.4.0 - 2022-12-19

Added

  • updated and improved syntax
  • cost functions for core and wire material according to IEEE paper 'Component cost models for multi-objective optimizations of switched-mode power converters'
  • connect femmt to the new pip package for the material database
  • add optimization routine for automated design process
  • Update GUI according to material database connection and optimization routine

0.3.0 - 2022-09-01

Added

  • Add color dictionaries for individual geometry visualization
  • Added output json file for thermal simulation
  • Add Parser to read and visualize the result.json-files
  • Add first version of reluctance model including an example file
  • Added dynamic mesh density algorithm for the winding window
  • Simulation settings are now stored in the log file. A simulation can be started using given log-file.
  • Added a new interface for femmt

Fixed

  • fix #13: improve reading the onelab filepath
  • fix #16: Wrong Mesh is simulated when changing the number of turns
  • fix #17: Error with integrated_transformer mesh
  • fix #19: Scale update in result plots
  • fix #22: Fix bug for air-gap positions 0 and 100 percent

0.2.1 - 2022-04-28

Updated

  • possibility to assign fixed magnetic loss angle and conductivity in update_core function
  • new isolation scheme (looking from core to all windings): core_cond_isolation=[top, bottom, inner, outer] instead of core_cond_isolation=[prim2core, sec2core]
  • gmsh 4.9.5 as minimum requirement

Added

  • example for foil winding inductor
  • conductor material can be chosen from a small material database, used in update_conductors(), e.g. conductivity_sigma=["copper"]
  • isolations for thermal simulation

Fixed

  • fix #15: Secondary to Core isolation thickness not working

0.2.0 - 2022-02-14

Updated

  • updated the winding generation
  • updated the femm reference model
  • updated project structure
  • updated meshing to hybrid mesh
  • updated class structure

Added

  • add file Analytical_Core_Data.py
  • add example files DAB_Input_Data.py, DAB_trafo_optimization.py
  • add file mu_imag.pro
  • add folder femmt/thermal
  • add result_log_electro_magnetic
  • add horizontal interleaved winding scheme
  • add method write_log() to femmt.py
  • add thermal simulation with onelab
  • add femm heat flow validation with femm

Fixed

  • fix #5: changed typo to L_h_conc = self.M**2 / self.L_22
  • fix #11: rename femmt.py to femmt_classes.py due to package problems

0.1.2 - 2021-08-08

Updated

  • updated strand approximation

Added

  • add option for dedicated stray path
  • add complex permeability and permittivity for core materials for Core Loss estimation
  • add iGSE and GSE for Core Loss estimation

0.1.1 - 2021-08-11

Updated

  • updated inductance calculations
  • code clean up

Fixed

  • fix #2: config.json was not read correct
  • fix #3: Install pyfemm on Windows machines in case of not installed pyfemm

0.1.0 - 2021-07-28

Added

Structure

  • add README.md
  • add CHANGELOG.md
  • add femmt/init.py

Essentials

  • add femmt/FEMMT.py
  • add femmt/functions.py
  • add femmt/ind_axi_python_controlled.pro
  • add femmt/solver.pro
  • add femmt/BH.pro

Examples

  • add femmt/FEMMT_geometric.py
  • add femmt/basic_example.py

Additional/Experimental Code

  • add femmt/pandas_json.py
  • add femmt/femm_test.py
  • add femmt/SimComparison.py
  • add femmt/SolidComp.py
  • add femmt/CompRes.py