Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[FEATURE] Improve connection of charging points #413

Open
birgits opened this issue Jul 25, 2024 · 1 comment · May be fixed by #421
Open

[FEATURE] Improve connection of charging points #413

birgits opened this issue Jul 25, 2024 · 1 comment · May be fixed by #421
Assignees
@birgits @joda9
Labels
enhancement medium_priority

Comments

@birgits
Copy link
Collaborator

birgits commented Jul 25, 2024 •
edited
Loading

  • Connect home charging points to residential buildings and work charging points to CTS and industrial loads when connected in voltage level 7
    • Here, the potential LV buses should in case of home charging only be residential loads and in case of work charging industrial or CTS loads
    • This is e.g. already done in function Topology.connect_to_lv()
    • In case no suitable load is available, the current approach can be used, that the charging station is connected somewhere in the grid
    • In case a suitable load can be found, the charging point should be connected directly to the same bus as the load
    • A load is only suitable, if number of connected charging points is below defined value as done here
    • Connecting to a suitable load bus could also be made an option when calling the function
    • Same can be done for heat pumps, storage units and generators
      • Heat pumps with sector 'individual_heating' or 'individual_heating_resistive_heater' should be connected to some load bus
      • Solar generators in those voltage levels should be connected to some load bus
      • Storage should be connected to bus with a solar generator
    • Same could be done for voltage level 6
    • Same could also be done in MV, but here, the distance from the geolocation of the component to the selected bus should not be too large; in case it is too large, the component should just be connected based on its geolaction
  • Charging points public - if next grid connection point in LV is too far away, check whether next grid connection option in MV is much closer
    • Needs to be implemented here
  • Consider distance from grid in attractivity of public charging points - @khelfen could you please add here where best to do it? I think here, but I don't fully understand this function. Maybe elaborating the docstring would help.
@khelfen
Copy link
Collaborator

khelfen commented Aug 12, 2024

I have updated the docstring and comments within the mentioned function get_weights_df a bit. You can find it in PR #416. At the moment the tests fail, but I think this is due to your changes @joda9 ?

The function already includes the distance to the next MV/LV substation:

eDisGo/edisgo/io/electromobility_import.py

Lines 725 to 727 in d68e4d4

distance_weights = (
edisgo_obj.electromobility._potential_charging_parks_df.distance_weight.tolist() # noqa: E501
)

This is based on the distance calculation here:

eDisGo/edisgo/network/components.py

Lines 893 to 918 in d68e4d4

def nearest_substation(self):
"""
Determines the nearest LV Grid, substation and distance.
Returns
--------
:obj:`dict`
:obj:`int`
LV Grid ID
:obj:`str`
ID of the nearest substation
:obj:`float`
Distance to nearest substation
"""
substations = self._topology.buses_df.loc[self._topology.transformers_df.bus1]
nearest_substation, distance = find_nearest_bus(self.geometry, substations)
lv_grid_id = int(self._topology.buses_df.at[nearest_substation, "lv_grid_id"])
return {
"lv_grid_id": lv_grid_id,
"nearest_substation": nearest_substation,
"distance": distance,
}

At the beginning of the process of assigning charging processes to charging points, it is not clear if a charging park (charging park consists of one or more charging points) will be connected to LV, MV/LV, MV or even HV/MV level. Also, when the code was written, the LV level wasn't geolocated yet. So I used the distance to the next MV/LV substation as a guess.

@birgits birgits linked a pull request Aug 16, 2024 that will close this issue
413 feature improve connection of charging points #419
Closed
12 tasks
@joda9 joda9 linked a pull request Sep 6, 2024 that will close this issue
Open
12 tasks
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@birgits birgits

@joda9 joda9

Labels
enhancement medium_priority
Projects
None yet
Milestone
No milestone
3 participants
@birgits @khelfen @joda9