Introduction to DC SIMOTRAPS
Electrodynamic train simulation software called DC SIMOTRAPS is a powerful software for simulation of direct current (DC) traction vehicles . This software is able to calculate and present all the parameters required in the design of traction posts, overhead catenary system or third rail.
Subway trains, trams, monorails and trolley buses are the examples of DC traction power supply systems that can be designed with this software.
Software input data
DC SIMOTRAPS software needs some parameters and input data to perform the simulation. These data include:
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- the plan and profile of the train route,
- rolling stock specifications,
- operation parameters,
- and finally the electrical network specifications.
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The parameters of the plan and profile of the route include:
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- the slope,
- the radius of the curves
- and the maximum permitted speed along the route,
- as well as the location of the passenger stations.
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Fleet specifications include:
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- the allowable fleet voltage range,
- auxiliary power,
- power regenerative capability,
- tractive effort and braking effort characteristics,
- train movement resistance parameters,
- Rolling Stock weight and passenger weight,
- train acceleration rate change and maximum train traction and braking acceleration.
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Operation parameters includes the Dwell time of trains per platform as well as the distance of the trains.
The characteristics of the electrical network include the location of the traction substations, the number of transformers-rectifiers in each traction substation, the rated current of each rectifier, the no-load voltage and the full load of the rectifiers.
On the other hand, to calculate the train voltage drop along the line, it uses the conductor resistance of the power supply to the train along the line as well as the electrical resistance of the third rail or overhead catenary system per unit length and finally the resistance of the running rail to ground.
The other parameter of software input data is the paralleling points of tracks and the amount of resistance between them. This item helps to calculate effective and accurate calculation of the running rail voltage.
Software outputs
After getting the input information, the software starts the simulation according to the provided time table and observing the Dwell times in each station, and displays and stores all the parameters online. These parameters include the voltage of all network points, Including trains and traction posts.
It also calculates and displays the currents associated with traction post feeders.
Finally, the software presents a report in which the average values and root mean squares of power and current of traction substations as well as the mean and root mean squares of current and maximum and minimum values for each output feeder of traction substations , Shows in the form of graphic diagrams as well as numerical tables.
In the report provided by the software, the train voltage and rail voltage profiles, as well as the train speed profile and its maximum allowed speed are displayed separately for each train movement direction. Also, the power consumption profile of trains and their acceleration can be displayed and presented.
All of the above can be simulated and presented in different failure cases of outage of half or total traction substation out of service. As it seems, this software is able to calculate and present all the parameters required to design a DC transportation system.
Available services
Electrodynamic simulation services of train movement and size calculations and location of traction posts can be done in all stages of project engineering. These steps include conceptual design, basic design, and even line operation calculations and studies for any change in routine operation of the line.
despite of our simulation services, you can purchase DC SIMOTRAPS Software with a reasonable price in case you want to use it in more projects.
You can send us your request through contact us page for more information.