What is OpenPowerNet?

OpenPowerNet is a traction power supply and train performance simulation software developed by Institut für Bahntechnik GmbH, BO Dresden. OpenPowerNet does the traction Power Supply Calculation in module PSC as well as the Advanced Train Model simulation in module ATM. The operational simulation is done by OpenTrack in co-simulation with the electrical simulation. OpenPowerNet has a retroactive effect to OpenTrack.

OpenPowerNet is developed by Institut für Bahntechnik GmbH, BO Dresden as an in-house tool. Since July 2009 a commercial and since March 2010 a academic license is available. In case you are in need of a traction power supply simulation respective simulation tool please contact us. We provide OpenPowerNet licenses as well as the service to simulate and analyse traction power supply networks.

OpenPowerNet main functionality:

• Load flow analysis for 1AC, 2AC and DC networks
• Calculation of tractive effort for OpenTrack
• Calculation of braking effort and recovered energy for network simulation and analysis
• Advanced Train Model with tractive and braking current limitation, power factor versus voltage, recovery braking, eddy current braking, ...
• Engine model with multiple propulsion systems is available
• Automatic calculation of the magnetic coupling between conductors
• Modelling of power supplies such as rectifier/inverter, transformer, converter (SFC)
• Modelling of station energy storage for stabilisation of line voltage and energy saving
• Modelling of engine energy storage chargeable from OCS and allowing running on OCS free track sections
• Modelling of booster transformer
• Modelling of voltage limiting device
• Calculation of short circuit currents along the line
• Calculation of line voltages for constant current engines to analyse the electrical network
• Energy balance
• Consideration of coasting behaviour of the courses
• Load analysis of equipment
• Touch voltage calculation
• Electromagnetic field calculation and visualisation
• Visualisation of results using the automated analysis of the Analysis Tool
• Automated analysis generates the tables and diagrams in any language by user configuration using UTF-8 characters.

What's new in Version 1.8.1?

General:

• Rectifier internal resistance might now be negative.
• Minor bugfixes.
• More detailed information are available at the Release Notes.

What's new in Version 1.8.0?

General:

• Engine energy storage can be charged from OCS now and may be used to power the engine in catenary-free sections (tracks with modelled, but isolated OCS section, "NoPowerSupply"). Please see the corresponding tutorial in the user manual for more detail.
• Added handling for connected courses. The new course will be able to take over storage SoC from its circulation course on arrival. Please see the OpenTrack documentation for more detail on modelling connections.
• Added "region" model to the electrical network: The type "RegionOcsCharge" may be used inside a network line element to define allowance of OCS charging for proper engines whereas the type "RegionVehicleMod" may be used to overwrite the default value of pantoCurrentLimitationStandstill_A of engines at the particular position. The regions are defined in the Project-File under the Line elements and can be visualised by NMMV and Analysis chart output. Please see the modelling section and engine energy storage tutorial of the user manual for more detail.
• Improved user experience.
• Minor bugfixes.
• More detailed information are available at the Release Notes.

Graphical User Interface

 

Engine Editor

Analysis Tool

 

Software Structure:

 

Network Model:

 

 

Substation Model:

 

 

Engine Model: Single Components

 

Engine Model: Mean Efficiency

 

Engine Model: Efficiency Table

 

Engine Energy Storage Load Models:

  

Engine Energy Storage Unload Models: