Digsilent to Gridcal

[yns0671]

Hello,

I am currently working with DIgSILENT PowerFactory and would like to transition to GridCal for power system analysis. However, I have several models (including diagrams and grid data) in DIgSILENT format. Is there a way to import or convert these files into GridCal, or any recommended workflow for handling such transitions?

Any guidance or tools to facilitate this process would be greatly appreciated.

Thank you in advance!

Best regards,

[SanPen]

Hi,

To pass the models, depending on the level of detail, the simplest form that I've seen working is exporting to PSS/e raw (v33 for instance) and import into GridCal.

As for the diagrams, I'm afraid you will have to do some PowerFactory digging to get the coordinates of the elements.

If I were you, I'd make some python script to traverse the PowerFactory objects and create the GridCal objects (diagrams included)

I don't have a PowerFactory license that I can use, but I can help you understanding things from the GridCal side.

BR, Santiago

[SanPen]

@yns0671 How is it going?

[yns0671]

I could not work on this for a while. Now, I realised that i cant export to pss/e due to our licence. I will try ro find out another way. Thanks for your support. Greetings from Gökhan Tosun, my manager at MRC.

[SanPen]

You could try the power factory text file export. GridCal may be able to do something with that file.

An alternative, is to use the PowerFactory python API to traverse the objects and create the GridCal objects from that. I don't have a power factory license, so I cannot try.

Some resources:

• PowerFactory2OATS
• simBench2PowerFactory

Greetings to Gökhan too!

[yns0671]

I obtain line coordinates from digsilent and use them in order to a create line in gridcal by this code: It creates two bus on top of each other at "All Bus Branch". What i want is to see this line on map using its coordinates. Or, alternatively, it could be good if i see this bus not on the same location on the line diagram. how can i determine their location on the diagram? This code just add the coorinates as attribute of the line

take coordinates

terminal_i_coords = { 'lat': terminal_i.GetAttribute('GPSlat'), 'lon': terminal_i.GetAttribute('GPSlon') } terminal_j_coords = { 'lat': terminal_j.GetAttribute('GPSlat'), 'lon': terminal_j.GetAttribute('GPSlon') }

create GridCal MultiCircuit

grid = gce.MultiCircuit()

create terminals

bus1 = Bus("Bus1", latitude=terminal_i_coords['lat'], longitude=terminal_i_coords['lon']) grid.add_bus(bus1)

bus2 = Bus("Bus2", latitude=terminal_j_coords['lat'], longitude=terminal_j_coords['lon']) grid.add_bus(bus2)

add branch

branch = gce.Branch(bus1, bus2, name=line_name, r=0.05, x=0.11, b=0.02) # Örnek direnç ve reaktans değerleri grid.add_branch(branch)

[SanPen]

could you share a simple gridcal file for me to see the issue? or maybe the same code but with some numeric values?

[yns0671]

here is an example code:

from GridCalEngine.Devices import Bus

import GridCalEngine.api as gce

line_name = "172845235_WCR_OVERHEAD_ACSR_150MM2_33 KV"
line = None

terminal_i_coords = {'lat': 13.4527, 'lon': -16.5780} # Bus1 terminal_j_coords = {'lat': 13.4530, 'lon': -16.5785} # Bus2

grid = gce.MultiCircuit()

bus1 = Bus("Bus1", latitude=terminal_i_coords['lat'], longitude=terminal_i_coords['lon']) bus1.Vnom = 110 bus1.Vmax = 115
bus1.Vmin = 105 grid.add_bus(bus1)

bus2 = Bus("Bus2", latitude=terminal_j_coords['lat'], longitude=terminal_j_coords['lon']) bus2.Vnom = 110 bus2.Vmax = 115
bus2.Vmin = 105
grid.add_bus(bus2)

branch = gce.Branch(bus1, bus2, name=line_name, r=0.05, x=0.11, b=0.02) # Örnek direnç ve reaktans değerleri grid.add_branch(branch)

gridcal_file_path = r"C:\Users\path)

print(f"{line_name} created {gridcal_file_path} saved")

how can i determine locations of the busses on the line diagram or on the map

[SanPen]

I think I understand your problem. In a schematic diagram the latitude and longitude are useless, because it is a 2D cartesian representation, hence you need to set the xand yproperties. For that, in the model you can call grid.fill_xy_from_lat_lon(destructive=True) That is also available in the user interface in the model menu.

Then, you can click on the +or - buttons to make the buses closer or further apart.

Another topic; For the map representation you need to have substation objects. Those can be automatically detected with gce.detect_substations(grid).

import GridCalEngine.api as gce

grid = gce.MultiCircuit()

line_name = "172845235_WCR_OVERHEAD_ACSR_150MM2_33 KV"
terminal_i_coords = {'lat': 13.4527, 'lon': -16.5780}  # Bus1
terminal_j_coords = {'lat': 13.4530, 'lon': -16.5785}  # Bus2

bus1 = gce.Bus("Bus1", latitude=terminal_i_coords['lat'], longitude=terminal_i_coords['lon'])
bus1.Vnom = 110
bus1.Vmax = 115
bus1.Vmin = 105
grid.add_bus(bus1)

bus2 = gce.Bus("Bus2", latitude=terminal_j_coords['lat'], longitude=terminal_j_coords['lon'])
bus2.Vnom = 110
bus2.Vmax = 115
bus2.Vmin = 105
grid.add_bus(bus2)

# avoid using Branch
branch = gce.Line(bus1, bus2, name=line_name, r=0.05, x=0.11, b=0.02)  # Örnek direnç ve reaktans değerleri
grid.add_line(branch)

grid.fill_xy_from_lat_lon(destructive=True)
gce.detect_substations(grid)

gce.save_file(grid, "example_yns0671.gridcal")