[bug] CIM16 CGMES import error busbar_id and busbar_name is dropped

[bp50hz]

Bug report checklis

• Searched the issues page for similar reports

• Read the relevant sections of the documentation

• Browse the tutorials and tests for usefull code snippets and examples of use

• Reproduced the issue after updating with pip install --upgrade pandapower (or git pull)

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Reproducible Example

testcase is missing in:
https://github.com/e2nIEE/pandapower/blob/8009cb53287c1f79e009d3093b1baf5694da17db/pandapower/test/converter/test_from_cim.py

Issue Description and Traceback

https://github.com/e2nIEE/pandapower/blob/develop/pandapower/converter/cim/cim2pp/build_pp_net.py
line 65 in build_pp_net.py:

self.net[pp_type] = pd.concat([self.net[pp_type],
        input_df[list(set(self.net[pp_type].columns).intersection(input_df.columns))]],
        ignore_index=True, sort=False)

during runtime:

input_df.columns = Index(['origin_id', 'name', 'description', 'ConnectivityNodeContainer',
       'origin_profile', 'origin_class', 'ConnectivityNodeContainer_id',
       'Substation', 'zone', 'Substation_id', 'vn_kv', 'ConnectivityNode',
       'cim_topnode', 'busbar_id', 'busbar_name', 'GeographicalRegion_id',
       'GeographicalRegion_name', 'SubGeographicalRegion_id',
       'SubGeographicalRegion_name', 'in_service', 'type'],
      dtype='object')

self.net[pp_type].columns = 
Index(['name', 'vn_kv', 'type', 'zone', 'in_service', 'geo', 'origin_id',
       'origin_class', 'origin_profile', 'cim_topnode',
       'ConnectivityNodeContainer_id', 'Substation_id', 'description',
       'Busbar_id', 'Busbar_name', 'GeographicalRegion_id',
       'GeographicalRegion_name', 'SubGeographicalRegion_id',
       'SubGeographicalRegion_name'],
      dtype='object')

Busbar_id != busbar_id
Busbar_name != busbar_name
-> busbar info gets dropped

why is the type hardcoded and not based on the busbarsection?
https://github.com/e2nIEE/pandapower/blob/develop/pandapower/converter/cim/cim2pp/converter_classes/connectivitynodes/connectivityNodesCim16.py
line 266

Expected Behavior

Busbar_id == Busbar_id
Busbar_name == Busbar_name

Installed Versions

pandapower 3.0.0.dev1 8009cb5

Label

• Relevant labels are selected

[bp50hz]

possible hotfix:
https://github.com/e2nIEE/pandapower/blob/develop/pandapower/converter/cim/cim2pp/converter_classes/connectivitynodes/connectivityNodesCim16.py
current code:

    def convert_connectivity_nodes_cim16(self):
        time_start = time.time()
        self.logger.info("Start converting ConnectivityNodes / TopologicalNodes.")
        connectivity_nodes, eqssh_terminals = self._prepare_connectivity_nodes_cim16()

add after line 24:
connectivity_nodes = connectivity_nodes.rename(columns={'busbar_id': 'Busbar_id', "busbar_name": 'Busbar_name'})