Author: admin

The mid 2025 release will be the largest update of Kestrel EMT so far. The features currently under test and development include:

• Native Linux compatibility
• Incorporation of the Universal Line Model for frequency dependent line modeling
• Inclusion of the widely accepted WECC inverter control models:
  • REPC_A Renewable Energy Plant Control Model
  • REEC_A Renewable Energy Control Model
  • REGC_A Renewable Energy Converter Model
• Inclusion of 8/20us and 1.2/50us surge waveforms (IEEE C62.45)
• Example cases for insulation coordination, breaker TRV, and IBR-based transient stability tests
• Updated MATLAB interface
• Updated Python interface to support user specified Python versions

Please reach out if you have any feature suggestions or would like to be a part of testing.

We’re switching to a calendar-based versioning structure to improve clarity.
Updates

• KPlot has been split out as its own exe and can open properly formatted hdf5 files on its own without opening the Kestrel EMT GUI
• Fixed minor bugs relating to the Python module’s error reporting during failed simulations.

Improvements:

• New KCF file format– Human-readable XML
• Command Line Version (“KestrelCLI.exe”) added
• PDF Documentation added
• Example circuits added (in the sample_kcf folder)
• Python blocks may optionally share context (i.e. variables and functions) via user selectable “Python Scope” parameter.
• Python block updated to allow for 23 Inputs/12 Outputs in the GUI
• User may define sim_end() in the Python block at end of simulation
• Added KPlot button to open other HDF5 files
• Bugfix: Fixed issue where running a simulation with only Math blocks fails
• Bugfix: Fixed issue where HDF5 files are left open after a failed simulation

Improvements:

• Added ArresterWorks lightning arrester model.
• Added Varistor V/I Curve plotting in parameter menu.

Bugfixes:

• Fixed an issue where upgrading windows versions could invalidate the software license.

Improvements:

• MATLAB and Python code blocks can now use a set “Call Rate” to drastically improve performance in circumstances where the code does not need to be executed every timestep.
• Improved numerical core performance.
• Individual pole control on time switches.
• Phasor and RMS blocks now have a “nPerCycle” parameter to drastically improve performance in small timestep simulations.
• Coupled RL circuits now have a X/Reactance input option
• Minor interface improvements