TransiEnt 3.0.0

---

Release Notes :

---

New Features

Superstructure
- Previously internally defined controllers removed from physical model
- Control models now completely outside superstructure
- Bus system for internal ad external communication
- At present only compatible with Dymola2023x or below

Heating Components
- inserted numerically improved models for the simulation of large-scale district heating networks (DHN)
- created a Tutorial (on website) with corresponding Tutorial models for giving an overview on how to simulate DHN using the TransiEnt Library

Electrical Components
- new prosumer model that includes Battery Electric Vehicles (BEV), Building Heating Systems with Electric Heat Pumps, Battery Energy Storage Systems, and Photovoltaics, enabling a realistic and modular representation of prosumer behavior and energy Management
- a series of low- and medium-voltage grid scenarios based on the SimBench dataset have been added, covering urban, semi-urban, and rural configurations. These examples provide valuable test cases for grid simulation and analysis, facilitating validation and further development of grid-related models
- All new components include internal controllers that reflect typical customer base loads and can be simulated directly. Moreover, the models are designed for external interaction, allowing integration with control algorithms implemented outside Modelica. This enables large-scale studies on electrical low- and medium-voltage systems, supporting investigations into modern energy management techniques such as congestion analysis and flexibility assessments.

Renamed

Fixed Bugs

Others

• Better documentation of Heat Models and GridConstructor

---

Acknowledgement for Release 3.0.0

---

This research has been performed among other things using the ERIGrid 2.0 Research Infrastructure and is part of a project that has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under the Grant Agreement No. 870620. The support of the European Research Infrastructure ERIGrid 2.0 and its partner DTU is very much appreciated.

This research was funded by the Federal Ministry for Economic Affairs and Climate Action in the projects “EffiziEntEE” (03EI1050A), “Integranet“ (0324027B), “IntegranetII“ (03EI1008B).

TransiEnt 2.0.3

Release Notes :
Update TransiEnt Library to ClaRa 1.8.1

New Features

Basic

• Add gas adapter Real_ph_to_Ideal_pT.mo

Renamed

Fixed Bugs

Heating Components

• Correction of parameter ymax in PID for PV-oriented heatpump control

Others

• some minor design changes

TransiEnt 2.0.2

Only small changes to TransiEnt 2.0.1. Changes are described in Readme. Start of development on Github.