PyPSA-EUR执行solve_elec_networks规则触发AssertionError错误

问题 #

已按PyPSA-EUR官方教程完成部署，执行以下仅电力测试命令成功：

snakemake -call results/test-elec/networks/elec_s_6_ec_lcopt_Co2L-24H.nc --configfile config/test/config.electricity.yaml

但执行snakemake -call solve_elec_networks时触发如下AssertionError：

AssertionError: In Line cluster underground, the values of attribute underground do not agree:

完整回溯信息：

Traceback (most recent call last):
  File "/mnt/d/inc/pypsa_test/pypsa-eur/.snakemake/scripts/tmplkaoyzq0.cluster_network.py", line 515, in 
    clustering = clustering_for_n_clusters(
  File "/mnt/d/inc/pypsa_test/pypsa-eur/.snakemake/scripts/tmplkaoyzq0.cluster_network.py", line 413, in clustering_for_n_clusters
    clustering = get_clustering_from_busmap(
  File "/home/john/anaconda3/envs/pypsa-eur/lib/python3.10/site-packages/pypsa/clustering/spatial.py", line 535, in get_clustering_from_busmap
    lines, lines_t, linemap = aggregatelines(
  File "/home/john/anaconda3/envs/pypsa-eur/lib/python3.10/site-packages/pypsa/clustering/spatial.py", line 436, in aggregatelines
    df = df.groupby(grouper, axis=0).agg(static_strategies)
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 1269, in aggregate
    result = op.agg()
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/apply.py", line 163, in agg
    return self.agg_dict_like()
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/apply.py", line 420, in agg_dict_like
    results = {
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/apply.py", line 421, in 
    key: obj._gotitem(key, ndim=1).agg(how) for key, how in arg.items()
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 269, in aggregate
    return self._python_agg_general(func, *args, **kwargs)
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 288, in _python_agg_general
    result = self.grouper.agg_series(obj, f)
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/ops.py", line 994, in agg_series
    result = self._aggregate_series_pure_python(obj, func)
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/ops.py", line 1015, in _aggregate_series_pure_python
    res = func(group)
  File "/home/john/.local/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 285, in 
    f = lambda x: func(x, *args, **kwargs)
  File "/home/john/anaconda3/envs/pypsa-eur/lib/python3.10/site-packages/pypsa/clustering/spatial.py", line 136, in consense
    assert (x == v).all() or x.isnull().all(), (
AssertionError: In Line cluster underground, the values of attribute underground do not agree:

涉事线路的underground属性值：

Line
1380     False
4002     False
5055     False
11429    False
9397     False
5795      True
5733     False
1376     False
Name: underground, dtype: bool

当前使用默认config.yaml和cbc求解器，询问执行solve_elec_networks前是否需要修改配置文件？

解决方案 #

需要修改配置文件，原因是：PyPSA在聚类聚合线路时，默认要求同一集群内的underground这类属性值必须完全一致，否则触发断言错误。而你当前的线路集群里同时存在True和False的underground值，导致报错。

具体修改步骤：

1. 打开项目根目录下的config.yaml
2. 找到cluster_network或clustering配置块，添加/修改线路属性的聚合策略：
   • 方法一（适配多数PyPSA-EUR版本）：

     cluster_network:
       static_strategies:
         Line:
           underground: "any"  # 只要集群内有地下线路，聚合后标记为地下；也可用"all"要求全为地下才标记，或"consense"取多数值
     

   • 方法二（适配新版本PyPSA-EUR）：

     clustering:
       attribute_strategies:
         Line:
           underground: lambda x: x.any()  # 自定义逻辑：存在True则返回True
     

3. 保存配置文件后，重新执行snakemake -call solve_elec_networks即可。

如果不想修改聚合策略，也可以先检查原始线路数据的underground标注是否有误，但调整配置是更快捷的解决方式。

内容的提问来源于stack exchange，提问作者Dakait