EL Version 2.1

Electrification Library 2.1 is part of Modelon's 2025.2 release. New versions of Modelon libraries are sold and distributed directly from Modelon, as well as approved resellers.

Improvements

Photovoltaics (PV)

  • Built-in support for automatically identifying model parameters directly from a datasheet, has been added to the photovoltaic models (Loads.Examples.PhotoVoltaic and Electrical.PhotoVoltaic).
  • New and improved application examples with photovoltaic arrays: Examples.PhotoVoltaicIdeal and Examples.PhotoVoltaicMPPT, demonstrating a longer scenario with under-voltage protection, and closed-loop MPPT control.
  • Improved usability of parameter dialogs and replaceable core model (in the PhotoVoltaic "load" model).
  • Improved the experiment Loads.Experiments.PhotoVoltaic, making it useful for characterization and verification (fixed temperature, wider operating range, and replaceable PV model).
  • The parameter data records have been deprecated (now found under the "Records" tab in the dialog).

DC/DC converters

  • Voltage limits have been introduced for all controllers in the Converters package. This allows protecting for under-voltage on the supply side or over-voltage on the output side. This is useful in e.g. applications with photovoltaics, allowing robust simulation of scenarios where solar power is lost.
  • A closed-loop MPPT (Maximum Power Point Tracking) controller, implementing the Perturb and Observe (P&O) algorithm (the dominant approach in photovoltaics applications). Demonstrated in the Examples.PhotoVoltaicMPPT experiment.
  • Introduced a common controller template for DC/DC converters with limits: CurrentActuatedLimited, to allow redeclaring controllers while preserving limit parameters (specified in a constraining clause).

Other improvements

  • The load models now have the initial temperature (T0) defined in the interface class of their thermal sub-component (like the other component categories).

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