EDisGo class

class edisgo.EDisGo(**kwargs)[source]

Provides the top-level API for invocation of data import, power flow analysis, network reinforcement, flexibility measures, etc..

Parameters
  • ding0_grid (str) – Path to directory containing csv files of network to be loaded.

  • generator_scenario (None or str, optional) – If None, the generator park of the imported grid is kept as is. Otherwise defines which scenario of future generator park to use and invokes grid integration of these generators. Possible options are ‘nep2035’ and ‘ego100’. These are scenarios from the research project open_eGo (see final report for more information on the scenarios). See import_generators for further information on how generators are integrated and what further options there are. Default: None.

  • timeindex (None or pandas.DatetimeIndex, optional) – Defines the time steps feed-in and demand time series of all generators, loads and storage units need to be set. The time index is for example used as default for time steps considered in the power flow analysis and when checking the integrity of the network. Providing a time index is only optional in case a worst case analysis is set up using set_time_series_worst_case_analysis(). In all other cases a time index needs to be set manually.

  • config_path (None or str or dict) –

    Path to the config directory. Options are:

    • ’default’ (default)

      If config_path is set to ‘default’, the provided default config files are used directly.

    • str

      If config_path is a string, configs will be loaded from the directory specified by config_path. If the directory does not exist, it is created. If config files don’t exist, the default config files are copied into the directory.

    • dict

      A dictionary can be used to specify different paths to the different config files. The dictionary must have the following keys:

      • ’config_db_tables’

      • ’config_grid’

      • ’config_grid_expansion’

      • ’config_timeseries’

      Values of the dictionary are paths to the corresponding config file. In contrast to the other options, the directories and config files must exist and are not automatically created.

    • None

      If config_path is None, configs are loaded from the edisgo default config directory ($HOME$/.edisgo). If the directory does not exist, it is created. If config files don’t exist, the default config files are copied into the directory.

    Default: “default”.

topology

The topology is a container object holding the topology of the grids.

Type

Topology

timeseries

Container for component time series.

Type

TimeSeries

results

This is a container holding all calculation results from power flow analyses, curtailment, storage integration, etc.

Type

Results

electromobility

Data container for all electromobility data on e.g. charging processes, information on potential charging sites and integrated charging parks.

Type

Electromobility

property config

eDisGo configuration data.

Parameters

kwargs (dict) – Dictionary with keyword arguments to set up Config object. See parameters of Config class for more information on possible input parameters.

Returns

Config object with configuration data from config files.

Return type

Config

import_ding0_grid(path)[source]

Import ding0 topology data from csv files in the format as Ding0 provides it.

Parameters

path (str) – Path to directory containing csv files of network to be loaded.

set_timeindex(timeindex)[source]

Sets timeindex all time-dependent attributes are indexed by.

The time index is for example used as default for time steps considered in the power flow analysis and when checking the integrity of the network.

Parameters

timeindex (pandas.DatetimeIndex) – Time index to set.

set_time_series_manual(generators_p=None, loads_p=None, storage_units_p=None, generators_q=None, loads_q=None, storage_units_q=None)[source]

Sets given component time series.

If time series for a component were already set before, they are overwritten.

Parameters
  • generators_p (pandas.DataFrame) – Active power time series in MW of generators. Index of the data frame is a datetime index. Columns contain generators names of generators to set time series for. Default: None.

  • loads_p (pandas.DataFrame) – Active power time series in MW of loads. Index of the data frame is a datetime index. Columns contain load names of loads to set time series for. Default: None.

  • storage_units_p (pandas.DataFrame) – Active power time series in MW of storage units. Index of the data frame is a datetime index. Columns contain storage unit names of storage units to set time series for. Default: None.

  • generators_q (pandas.DataFrame) – Reactive power time series in MVA of generators. Index of the data frame is a datetime index. Columns contain generators names of generators to set time series for. Default: None.

  • loads_q (pandas.DataFrame) – Reactive power time series in MVA of loads. Index of the data frame is a datetime index. Columns contain load names of loads to set time series for. Default: None.

  • storage_units_q (pandas.DataFrame) – Reactive power time series in MVA of storage units. Index of the data frame is a datetime index. Columns contain storage unit names of storage units to set time series for. Default: None.

Notes

This function raises a warning in case a time index was not previously set. You can set the time index upon initialisation of the EDisGo object by providing the input parameter ‘timeindex’ or using the function set_timeindex. Also make sure that the time steps for which time series are provided include the set time index.

set_time_series_worst_case_analysis(cases=None, generators_names=None, loads_names=None, storage_units_names=None)[source]

Sets demand and feed-in of all loads, generators and storage units for the specified worst cases.

See set_worst_case() for more information.

Parameters
  • cases (str or list(str)) – List with worst-cases to generate time series for. Can be ‘feed-in_case’, ‘load_case’ or both. Defaults to None in which case both ‘feed-in_case’ and ‘load_case’ are set up.

  • generators_names (list(str)) – Defines for which generators to set worst case time series. If None, time series are set for all generators. Default: None.

  • loads_names (list(str)) – Defines for which loads to set worst case time series. If None, time series are set for all loads. Default: None.

  • storage_units_names (list(str)) – Defines for which storage units to set worst case time series. If None, time series are set for all storage units. Default: None.

set_time_series_active_power_predefined(fluctuating_generators_ts=None, fluctuating_generators_names=None, dispatchable_generators_ts=None, dispatchable_generators_names=None, conventional_loads_ts=None, conventional_loads_names=None, charging_points_ts=None, charging_points_names=None)[source]

Uses predefined feed-in or demand profiles.

Predefined profiles comprise i.e. standard electric conventional load profiles for different sectors generated using the oemof demandlib or feed-in time series of fluctuating solar and wind generators provided on the OpenEnergy DataBase for the weather year 2011.

This function can also be used to provide your own profiles per technology or load sector.

Parameters
  • fluctuating_generators_ts (str or pandas.DataFrame) – Defines which technology-specific (or technology and weather cell specific) time series to use to set active power time series of fluctuating generators. See parameter ts_generators in predefined_fluctuating_generators_by_technology() for more information. If None, no time series of fluctuating generators are set. Default: None.

  • fluctuating_generators_names (list(str)) – Defines for which fluctuating generators to apply technology-specific time series. See parameter generator_names in predefined_dispatchable_generators_by_technology() for more information. Default: None.

  • dispatchable_generators_ts (pandas.DataFrame) – Defines which technology-specific time series to use to set active power time series of dispatchable generators. See parameter ts_generators in predefined_dispatchable_generators_by_technology() for more information. If None, no time series of dispatchable generators are set. Default: None.

  • dispatchable_generators_names (list(str)) – Defines for which dispatchable generators to apply technology-specific time series. See parameter generator_names in predefined_dispatchable_generators_by_technology() for more information. Default: None.

  • conventional_loads_ts (pandas.DataFrame) – Defines which sector-specific time series to use to set active power time series of conventional loads. See parameter ts_loads in predefined_conventional_loads_by_sector() for more information. If None, no time series of conventional loads are set. Default: None.

  • conventional_loads_names (list(str)) – Defines for which conventional loads to apply technology-specific time series. See parameter load_names in predefined_conventional_loads_by_sector() for more information. Default: None.

  • charging_points_ts (pandas.DataFrame) – Defines which use-case-specific time series to use to set active power time series of charging points. See parameter ts_loads in predefined_charging_points_by_use_case() for more information. If None, no time series of charging points are set. Default: None.

  • charging_points_names (list(str)) – Defines for which charging points to apply use-case-specific time series. See parameter load_names in predefined_charging_points_by_use_case() for more information. Default: None.

Notes

This function raises a warning in case a time index was not previously set. You can set the time index upon initialisation of the EDisGo object by providing the input parameter ‘timeindex’ or using the function set_timeindex. Also make sure that the time steps for which time series are provided include the set time index.

set_time_series_reactive_power_control(control='fixed_cosphi', generators_parametrisation='default', loads_parametrisation='default', storage_units_parametrisation='default')[source]

Set reactive power time series of components.

Parameters
  • control (str) – Type of reactive power control to apply. Currently the only option is ‘fixed_coshpi’. See fixed_cosphi() for further information.

  • generators_parametrisation (str or pandas.DataFrame) – See parameter generators_parametrisation in fixed_cosphi() for further information. Here, per default, the option ‘default’ is used.

  • loads_parametrisation (str or pandas.DataFrame) – See parameter loads_parametrisation in fixed_cosphi() for further information. Here, per default, the option ‘default’ is used.

  • storage_units_parametrisation (str or pandas.DataFrame) – See parameter storage_units_parametrisation in fixed_cosphi() for further information. Here, per default, the option ‘default’ is used.

Notes

Be careful to set parametrisation of other component types to None if you only want to set reactive power of certain components. See example below for further information.

Examples

To only set reactive power time series of one generator using default configurations you can do the following:

>>> self.set_time_series_reactive_power_control(
>>>     generators_parametrisation=pd.DataFrame(
>>>        {
>>>            "components": [["Generator_1"]],
>>>            "mode": ["default"],
>>>            "power_factor": ["default"],
>>>        },
>>>        index=[1],
>>>     ),
>>>     loads_parametrisation=None,
>>>     storage_units_parametrisation=None
>>> )

In the example above, loads_parametrisation and storage_units_parametrisation need to be set to None, otherwise already existing time series would be overwritten.

To only change configuration of one load and for all other components use default configurations you can do the following:

>>> self.set_time_series_reactive_power_control(
>>>     loads_parametrisation=pd.DataFrame(
>>>        {
>>>            "components": [["Load_1"],
>>>                           self.topology.loads_df.index.drop(["Load_1"])],
>>>            "mode": ["capacitive", "default"],
>>>            "power_factor": [0.98, "default"],
>>>        },
>>>        index=[1, 2],
>>>     )
>>> )

In the example above, generators_parametrisation and storage_units_parametrisation do not need to be set as default configurations are per default used for all generators and storage units anyways.

to_pypsa(mode=None, timesteps=None, check_edisgo_integrity=False, **kwargs)[source]

Convert grid to PyPSA.Network representation.

You can choose between translation of the MV and all underlying LV grids (mode=None (default)), the MV network only (mode=’mv’ or mode=’mvlv’) or a single LV network (mode=’lv’).

Parameters
  • mode (str) –

    Determines network levels that are translated to PyPSA.Network. Possible options are:

    • None

      MV and underlying LV networks are exported. This is the default.

    • ’mv’

      Only MV network is exported. MV/LV transformers are not exported in this mode. Loads, generators and storage units in underlying LV grids are connected to the respective MV/LV station’s primary side. Per default, they are all connected separately, but you can also choose to aggregate them. See parameters aggregate_loads, aggregate_generators and aggregate_storages for more information.

    • ’mvlv’

      This mode works similar as mode ‘mv’, with the difference that MV/LV transformers are as well exported and LV components connected to the respective MV/LV station’s secondary side. Per default, all components are connected separately, but you can also choose to aggregate them. See parameters aggregate_loads, aggregate_generators and aggregate_storages for more information.

    • ’lv’

      Single LV network topology including the MV/LV transformer is exported. The LV grid to export is specified through the parameter lv_grid_id. The slack is positioned at the secondary side of the MV/LV station.

  • timesteps (pandas.DatetimeIndex or pandas.Timestamp) – Specifies which time steps to export to pypsa representation to e.g. later on use in power flow analysis. It defaults to None in which case all time steps in timeindex are used. Default: None.

  • check_edisgo_integrity (bool) – Check integrity of edisgo object before translating to pypsa. This option is meant to help the identification of possible sources of errors if the power flow calculations fail. See check_integrity for more information.

  • use_seed (bool) – Use a seed for the initial guess for the Newton-Raphson algorithm. Only available when MV level is included in the power flow analysis. If True, uses voltage magnitude results of previous power flow analyses as initial guess in case of PQ buses. PV buses currently do not occur and are therefore currently not supported. Default: False.

  • lv_grid_id (int or str) – ID (e.g. 1) or name (string representation, e.g. “LVGrid_1”) of LV grid to export in case mode is ‘lv’.

  • aggregate_loads (str) – Mode for load aggregation in LV grids in case mode is ‘mv’ or ‘mvlv’. Can be ‘sectoral’ aggregating the loads sector-wise, ‘all’ aggregating all loads into one or None, not aggregating loads but appending them to the station one by one. Default: None.

  • aggregate_generators (str) – Mode for generator aggregation in LV grids in case mode is ‘mv’ or ‘mvlv’. Can be ‘type’ aggregating generators per generator type, ‘curtailable’ aggregating ‘solar’ and ‘wind’ generators into one and all other generators into another one, or None, where no aggregation is undertaken and generators are added to the station one by one. Default: None.

  • aggregate_storages (str) – Mode for storage unit aggregation in LV grids in case mode is ‘mv’ or ‘mvlv’. Can be ‘all’ where all storage units in an LV grid are aggregated to one storage unit or None, in which case no aggregation is conducted and storage units are added to the station. Default: None.

Returns

PyPSA.Network representation.

Return type

PyPSA.Network

to_graph()[source]

Returns networkx graph representation of the grid.

Returns

Graph representation of the grid as networkx Ordered Graph, where lines are represented by edges in the graph, and buses and transformers are represented by nodes.

Return type

networkx.Graph

import_generators(generator_scenario=None, **kwargs)[source]

Gets generator park for specified scenario and integrates them into the grid.

Currently, the only supported data source is scenario data generated in the research project open_eGo. You can choose between two scenarios: ‘nep2035’ and ‘ego100’. You can get more information on the scenarios in the final report.

The generator data is retrieved from the open energy platform from tables for conventional power plants and renewable power plants.

When the generator data is retrieved, the following steps are conducted:

  • Step 1: Update capacity of existing generators if ` update_existing` is True, which it is by default.

  • Step 2: Remove decommissioned generators if remove_decommissioned is True, which it is by default.

  • Step 3: Integrate new MV generators.

  • Step 4: Integrate new LV generators.

For more information on how generators are integrated, see connect_to_mv and connect_to_lv.

After the generator park is changed there may be grid issues due to the additional in-feed. These are not solved automatically. If you want to have a stable grid without grid issues you can invoke the automatic grid expansion through the function reinforce.

Parameters
analyze(mode=None, timesteps=None, raise_not_converged=True, troubleshooting_mode=None, range_start=0.1, range_num=10, **kwargs)[source]

Conducts a static, non-linear power flow analysis.

Conducts a static, non-linear power flow analysis using PyPSA and writes results (active, reactive and apparent power as well as current on lines and voltages at buses) to Results (e.g. v_res for voltages).

Parameters
  • mode (str or None) –

    Allows to toggle between power flow analysis for the whole network or just the MV or one LV grid. Possible options are:

    • None (default)

      Power flow analysis is conducted for the whole network including MV grid and underlying LV grids.

    • ’mv’

      Power flow analysis is conducted for the MV level only. LV loads, generators and storage units are aggregated at the respective MV/LV stations’ primary side. Per default, they are all connected separately, but you can also choose to aggregate them. See parameters aggregate_loads, aggregate_generators and aggregate_storages in to_pypsa for more information.

    • ’mvlv’

      Power flow analysis is conducted for the MV level only. In contrast to mode ‘mv’ LV loads, generators and storage units are in this case aggregated at the respective MV/LV stations’ secondary side. Per default, they are all connected separately, but you can also choose to aggregate them. See parameters aggregate_loads, aggregate_generators and aggregate_storages in to_pypsa for more information.

    • ’lv’

      Power flow analysis is conducted for one LV grid only. ID or name of the LV grid to conduct power flow analysis for needs to be provided through keyword argument ‘lv_grid_id’ as integer or string. See parameter lv_grid_id in to_pypsa for more information. The slack is positioned at the secondary side of the MV/LV station.

  • timesteps (pandas.DatetimeIndex or pandas.Timestamp) – Timesteps specifies for which time steps to conduct the power flow analysis. It defaults to None in which case all time steps in timeindex are used.

  • raise_not_converged (bool) – If True, an error is raised in case power flow analysis did not converge for all time steps. Default: True.

  • troubleshooting_mode (str or None) –

    Two optional troubleshooting methods in case of nonconvergence of nonlinear power flow (cf. [1])

    • None (default)

      Power flow analysis is conducted using nonlinear power flow method.

    • ’lpf’

      Non-linear power flow initial guess is seeded with the voltage angles from the linear power flow.

    • ’iteration’

      Power flow analysis is conducted by reducing all power values of generators and loads to a fraction, e.g. 10%, solving the load flow and using it as a seed for the power at 20%, iteratively up to 100%.

  • range_start (float, optional) – Specifies the minimum fraction that power values are set to when using troubleshooting_mode ‘iteration’. Must be between 0 and 1. Default: 0.1.

  • range_num (int, optional) – Specifies the number of fraction samples to generate when using troubleshooting_mode ‘iteration’. Must be non-negative. Default: 10.

  • kwargs (dict) – Possible other parameters comprise all other parameters that can be set in edisgo.io.pypsa_io.to_pypsa().

Returns

Returns the time steps for which power flow analysis did not converge.

Return type

pandas.DatetimeIndex

References

[1] https://pypsa.readthedocs.io/en/latest/troubleshooting.html

reinforce(timesteps_pfa=None, copy_grid=False, max_while_iterations=20, combined_analysis=False, mode=None, without_generator_import=False, **kwargs)[source]

Reinforces the network and calculates network expansion costs.

If the edisgo.network.timeseries.TimeSeries.is_worst_case is True input for timesteps_pfa and mode are overwritten and therefore ignored.

See edisgo.flex_opt.reinforce_grid.reinforce_grid() for more information on input parameters and methodology.

Parameters

is_worst_case (bool) – Is used to overwrite the return value from edisgo.network.timeseries.TimeSeries.is_worst_case. If True reinforcement is calculated for worst-case MV and LV cases separately.

Return type

Results

perform_mp_opf(timesteps, storage_series=None, **kwargs)[source]

Run optimal power flow with julia.

Parameters
  • timesteps (list) – List of timesteps to perform OPF for.

  • kwargs – See run_mp_opf() for further information.

Returns

Status of optimization.

Return type

str

add_component(comp_type, ts_active_power=None, ts_reactive_power=None, **kwargs)[source]

Adds single component to network.

Components can be lines or buses as well as generators, loads, or storage units. If add_ts is set to True, time series of elements are set as well. Currently, time series need to be provided.

Parameters
  • comp_type (str) – Type of added component. Can be ‘bus’, ‘line’, ‘load’, ‘generator’, or ‘storage_unit’.

  • ts_active_power (pandas.Series or None) – Active power time series of added component. Index of the series must contain all time steps in timeindex. Values are active power per time step in MW. Defaults to None in which case no time series is set.

  • ts_reactive_power (pandas.Series or str or None) –

    Possible options are:

    • pandas.Series

      Reactive power time series of added component. Index of the series must contain all time steps in timeindex. Values are reactive power per time step in MVA.

    • ”default”

      Reactive power time series is determined based on assumptions on fixed power factor of the component. To this end, the power factors set in the config section reactive_power_factor and the power factor mode, defining whether components behave inductive or capacitive, given in the config section reactive_power_mode, are used. This option requires you to provide an active power time series. In case it was not provided, reactive power cannot be set and a warning is raised.

    • None

      No reactive power time series is set.

    Default: None

  • **kwargs (dict) –

    Attributes of added component. See respective functions for required entries.

integrate_component_based_on_geolocation(comp_type, geolocation, voltage_level=None, add_ts=True, ts_active_power=None, ts_reactive_power=None, **kwargs)[source]

Adds single component to topology based on geolocation.

Currently components can be generators or charging points.

Parameters
  • comp_type (str) – Type of added component. Can be ‘generator’ or ‘charging_point’.

  • geolocation (shapely.Point or tuple) – Geolocation of the new component. In case of tuple, the geolocation must be given in the form (longitude, latitude).

  • voltage_level (int, optional) –

    Specifies the voltage level the new component is integrated in. Possible options are 4 (MV busbar), 5 (MV grid), 6 (LV busbar) or 7 (LV grid). If no voltage level is provided the voltage level is determined based on the nominal power p_nom (given as kwarg) as follows:

    • voltage level 4 (MV busbar): nominal power between 4.5 MW and 17.5 MW

    • voltage level 5 (MV grid) : nominal power between 0.3 MW and 4.5 MW

    • voltage level 6 (LV busbar): nominal power between 0.1 MW and 0.3 MW

    • voltage level 7 (LV grid): nominal power below 0.1 MW

  • add_ts (bool, optional) – Indicator if time series for component are added as well. Default: True.

  • ts_active_power (pandas.Series, optional) – Active power time series of added component. Index of the series must contain all time steps in timeindex. Values are active power per time step in MW. If you want to add time series (if add_ts is True), you must provide a time series. It is not automatically retrieved.

  • ts_reactive_power (pandas.Series, optional) – Reactive power time series of added component. Index of the series must contain all time steps in timeindex. Values are reactive power per time step in MVA. If you want to add time series (if add_ts is True), you must provide a time series. It is not automatically retrieved.

  • kwargs – Attributes of added component. See add_generator respectively add_charging_point methods for more information on required and optional parameters of generators and charging points.

remove_component(comp_type, comp_name, drop_ts=True)[source]

Removes single component from network.

Components can be lines or buses as well as generators, loads, or storage units. If drop_ts is set to True, time series of elements are deleted as well.

Parameters
  • comp_type (str) – Type of removed component. Can be ‘bus’, ‘line’, ‘load’, ‘generator’, or ‘storage_unit’.

  • comp_name (str) – Name of component to be removed.

  • drop_ts (bool) – Indicator if time series for component are removed as well. Defaults to True.

aggregate_components(aggregate_generators_by_cols=None, aggregate_loads_by_cols=None)[source]

Aggregates generators and loads at the same bus.

By default all generators respectively loads at the same bus are aggregated. You can specify further columns to consider in the aggregation, such as the generator type or the load sector. Make sure to always include the bus in the list of columns to aggregate by, as otherwise the topology would change.

Be aware that by aggregating components you loose some information e.g. on load sector or charging point use case.

Parameters
  • aggregate_generators_by_cols (list(str) or None) – List of columns to aggregate generators at the same bus by. Valid columns are all columns in generators_df. If an empty list is given, generators are not aggregated. Defaults to None, in which case all generators at the same bus are aggregated.

  • aggregate_loads_by_cols (list(str)) – List of columns to aggregate loads at the same bus by. Valid columns are all columns in loads_df. If an empty list is given, generators are not aggregated. Defaults to None, in which case all loads at the same bus are aggregated.

import_electromobility(simbev_directory, tracbev_directory, import_electromobility_data_kwds=None, allocate_charging_demand_kwds=None)[source]

Imports electromobility data and integrates charging points into grid.

So far, this function requires electromobility data from SimBEV (required version: 3083c5a) and TracBEV (required version: 14d864c) to be stored in the directories specified through the parameters simbev_directory and tracbev_directory. SimBEV provides data on standing times, charging demand, etc. per vehicle, whereas TracBEV provides potential charging point locations.

After electromobility data is loaded, the charging demand from SimBEV is allocated to potential charging points from TracBEV. Afterwards, all potential charging points with charging demand allocated to them are integrated into the grid.

Be aware that this function does not yield charging time series per charging point but only charging processes (see charging_processes_df for more information). The actual charging time series are determined through applying a charging strategy using the function charging_strategy.

Parameters
  • simbev_directory (str) – SimBEV directory holding SimBEV data.

  • tracbev_directory (str) – TracBEV directory holding TracBEV data.

  • import_electromobility_data_kwds (dict) –

    These may contain any further attributes you want to specify when calling the function to import electromobility data from SimBEV and TracBEV using import_electromobility().

    gc_to_car_rate_homefloat

    Specifies the minimum rate between potential charging parks points for the use case “home” and the total number of cars. Default 0.5.

    gc_to_car_rate_workfloat

    Specifies the minimum rate between potential charging parks points for the use case “work” and the total number of cars. Default 0.25.

    gc_to_car_rate_publicfloat

    Specifies the minimum rate between potential charging parks points for the use case “public” and the total number of cars. Default 0.1.

    gc_to_car_rate_hpcfloat

    Specifies the minimum rate between potential charging parks points for the use case “hpc” and the total number of cars. Default 0.005.

    mode_parking_timesstr

    If the mode_parking_times is set to “frugal” only parking times with any charging demand are imported. Any other input will lead to all parking and driving events being imported. Default “frugal”.

    charging_processes_dirstr

    Charging processes sub-directory. Default None.

    simbev_config_filestr

    Name of the simbev config file. Default “metadata_simbev_run.json”.

  • allocate_charging_demand_kwds

    These may contain any further attributes you want to specify when calling the function that allocates charging processes from SimBEV to potential charging points from TracBEV using distribute_charging_demand().

    modestr

    Distribution mode. If the mode is set to “user_friendly” only the simbev weights are used for the distribution. If the mode is “grid_friendly” also grid conditions are respected. Default “user_friendly”.

    generators_weight_factorfloat

    Weighting factor of the generators weight within an LV grid in comparison to the loads weight. Default 0.5.

    distance_weightfloat

    Weighting factor for the distance between a potential charging park and its nearest substation in comparison to the combination of the generators and load factors of the LV grids. Default 1 / 3.

    user_friendly_weightfloat

    Weighting factor of the user friendly weight in comparison to the grid friendly weight. Default 0.5.

apply_charging_strategy(strategy='dumb', **kwargs)[source]

Applies charging strategy to set EV charging time series at charging parks.

This function requires that standing times, charging demand, etc. at charging parks were previously set using import_electromobility.

It is assumed that only ‘private’ charging processes at ‘home’ or at ‘work’ can be flexibilized. ‘public’ charging processes will always be ‘dumb’.

The charging time series at each charging parks are written to loads_active_power. Reactive power in loads_reactive_power is set to 0 Mvar.

Parameters
  • strategy (str) –

    Defines the charging strategy to apply. The following charging strategies are valid:

    • ’dumb’

      The cars are charged directly after arrival with the maximum possible charging capacity.

    • ’reduced’

      The cars are charged directly after arrival with the minimum possible charging power. The minimum possible charging power is determined by the parking time and the parameter minimum_charging_capacity_factor.

    • ’residual’

      The cars are charged when the residual load in the MV grid is lowest (high generation and low consumption). Charging processes with a low flexibility are given priority.

    Default: ‘dumb’.

  • timestamp_share_threshold (float) – Percental threshold of the time required at a time step for charging the vehicle. If the time requirement is below this limit, then the charging process is not mapped into the time series. If, however, it is above this limit, the time step is mapped to 100% into the time series. This prevents differences between the charging strategies and creates a compromise between the simultaneity of charging processes and an artificial increase in the charging demand. Default: 0.2.

  • minimum_charging_capacity_factor (float) – Technical minimum charging power of charging points in p.u. used in case of charging strategy ‘reduced’. E.g. for a charging point with a nominal capacity of 22 kW and a minimum_charging_capacity_factor of 0.1 this would result in a minimum charging power of 2.2 kW. Default: 0.1.

plot_mv_grid_topology(technologies=False, **kwargs)[source]

Plots plain MV network topology and optionally nodes by technology type (e.g. station or generator).

For more information see edisgo.tools.plots.mv_grid_topology().

Parameters

technologies (bool) – If True plots stations, generators, etc. in the topology in different colors. If False does not plot any nodes. Default: False.

plot_mv_voltages(**kwargs)[source]

Plots voltages in MV network on network topology plot.

For more information see edisgo.tools.plots.mv_grid_topology().

plot_mv_line_loading(**kwargs)[source]

Plots relative line loading (current from power flow analysis to allowed current) of MV lines.

For more information see edisgo.tools.plots.mv_grid_topology().

plot_mv_grid_expansion_costs(**kwargs)[source]

Plots grid expansion costs per MV line.

For more information see edisgo.tools.plots.mv_grid_topology().

plot_mv_storage_integration(**kwargs)[source]

Plots storage position in MV topology of integrated storage units.

For more information see edisgo.tools.plots.mv_grid_topology().

plot_mv_grid(**kwargs)[source]

General plotting function giving all options of function edisgo.tools.plots.mv_grid_topology().

histogram_voltage(timestep=None, title=True, **kwargs)[source]

Plots histogram of voltages.

For more information on the histogram plot and possible configurations see edisgo.tools.plots.histogram().

Parameters
  • timestep (pandas.Timestamp or list(pandas.Timestamp) or None, optional) – Specifies time steps histogram is plotted for. If timestep is None all time steps voltages are calculated for are used. Default: None.

  • title (str or bool, optional) – Title for plot. If True title is auto generated. If False plot has no title. If str, the provided title is used. Default: True.

histogram_relative_line_load(timestep=None, title=True, voltage_level='mv_lv', **kwargs)[source]

Plots histogram of relative line loads.

For more information on how the relative line load is calculated see edisgo.tools.tools.get_line_loading_from_network(). For more information on the histogram plot and possible configurations see edisgo.tools.plots.histogram().

Parameters
  • timestep (pandas.Timestamp or list(pandas.Timestamp) or None, optional) – Specifies time step(s) histogram is plotted for. If timestep is None all time steps currents are calculated for are used. Default: None.

  • title (str or bool, optional) – Title for plot. If True title is auto generated. If False plot has no title. If str, the provided title is used. Default: True.

  • voltage_level (str) – Specifies which voltage level to plot voltage histogram for. Possible options are ‘mv’, ‘lv’ and ‘mv_lv’. ‘mv_lv’ is also the fallback option in case of wrong input. Default: ‘mv_lv’

save(directory, save_topology=True, save_timeseries=True, save_results=True, save_electromobility=False, **kwargs)[source]

Saves EDisGo object to csv files.

It can be chosen what is included in the csv export (e.g. power flow results, electromobility flexibility, etc.). Further, in order to save disk storage space the data type of time series data can be reduced, e.g. to float32 and data can be archived, e.g. in a zip archive.

Parameters
  • directory (str) – Main directory to save EDisGo object to.

  • save_topology (bool, optional) – Indicates whether to save Topology object. Per default it is saved to sub-directory ‘topology’. See to_csv for more information. Default: True.

  • save_timeseries (bool, optional) – Indicates whether to save Timeseries object. Per default it is saved to subdirectory ‘timeseries’. Through the keyword arguments reduce_memory and to_type it can be chosen if memory should be reduced. See to_csv for more information. Default: True.

  • save_results (bool, optional) – Indicates whether to save Results object. Per default it is saved to subdirectory ‘results’. Through the keyword argument parameters the results that should be stored can be specified. Further, through the keyword parameters reduce_memory and to_type it can be chosen if memory should be reduced. See to_csv for more information. Default: True.

  • save_electromobility (bool, optional) – Indicates whether to save Electromobility object. Per default it is not saved. If set to True, it is saved to subdirectory ‘electromobility’. See to_csv for more information. Default: False.

  • reduce_memory (bool, optional) – If True, size of dataframes containing time series in Results and TimeSeries is reduced. See reduce_memory and reduce_memory for more information. Type to convert to can be specified by providing to_type as keyword argument. Further parameters of reduce_memory functions cannot be passed here. Call these functions directly to make use of further options. Default: False.

  • to_type (str, optional) – Data type to convert time series data to. This is a trade-off between precision and memory. Default: “float32”.

  • parameters (None or dict) – Specifies which results to store. By default this is set to None, in which case all available results are stored. To only store certain results provide a dictionary. See function docstring parameters parameter in to_csv() for more information.

  • archive (bool, optional) – Save disk storage capacity by archiving the csv files. The archiving takes place after the generation of the CSVs and therefore temporarily the storage needs are higher. Default: False.

  • archive_type (str, optional) – Set archive type. Default: “zip”.

  • drop_unarchived (bool, optional) – Drop the unarchived data if parameter archive is set to True. Default: True.

save_edisgo_to_pickle(path='', filename=None)[source]

Saves EDisGo object to pickle file.

Parameters
  • path (str) – Directory the pickle file is saved to. Per default it takes the current working directory.

  • filename (str or None) – Filename the pickle file is saved under. If None, filename is ‘edisgo_object_{grid_id}.pkl’.

reduce_memory(**kwargs)[source]

Reduces size of dataframes containing time series to save memory.

Per default, float data is stored as float64. As this precision is barely needed, this function can be used to convert time series data to a data subtype with less memory usage, such as float32.

Parameters
  • to_type (str, optional) – Data type to convert time series data to. This is a tradeoff between precision and memory. Default: “float32”.

  • results_attr_to_reduce (list(str), optional) – See attr_to_reduce parameter in reduce_memory for more information.

  • timeseries_attr_to_reduce (list(str), optional) – See attr_to_reduce parameter in reduce_memory for more information.

check_integrity()[source]

Method to check the integrity of the EDisGo object.

Checks for consistency of topology (see edisgo.topology.check_integrity()), timeseries (see edisgo.timeseries.check_integrity()) and the interplay of both.

resample_timeseries(method='ffill', freq='15min')[source]

Resamples all generator, load and storage time series to a desired resolution.

The following time series are affected by this:

Both up- and down-sampling methods are possible.

Parameters