{
  "header": {
    "format_version": 0.2,
    "format_revision": 0,
    "case_name": "TwoBusGensal",
    "case_description": "Two-bus case: GENSAL machine on Bus_1, 100 MW resistive load on Bus_2, lossless tie line X=0.1, bus fault on Bus_2",
    "case_comments": "Validates GENSAL trajectory against an external (PowerWorld) reference. Monitors machine differential states."
  },
  "params": {
    "freq_base": 60.0,
    "va_base": 100000000.0
  },
  "monitors": [
    {
      "file_name": "mon.csv",
      "format": "csv"
    }
  ],
  "buses": [
    {
      "number": 1,
      "class": "Bus",
      "name": "Bus_1",
      "init": {
        "Vr": 1.0,
        "Vi": 0.0
      },
      "params": {
        "kv": 138.0
      }
    },
    {
      "number": 2,
      "class": "Bus",
      "name": "Bus_2",
      "init": {
        "Vr": 0.9898978476307575,
        "Vi": -0.09999998417733978
      },
      "params": {
        "kv": 138.0
      }
    }
  ],
  "signals": [
    {
      "signal_id": 0,
      "name": "gensal_1_1_speed_deviation"
    },
    {
      "signal_id": 1,
      "name": "gensal_1_1_mechanical_power"
    },
    {
      "signal_id": 2,
      "name": "gensal_1_1_excitation_field"
    }
  ],
  "devices": [
    {
      "class": "Gensal",
      "ports": {
        "bus": 1,
        "speed": 0,
        "pmech": 1,
        "efd": 2
      },
      "id": "gensal_1_1",
      "params": {
        "p0": 1.0,
        "q0": 0.10102,
        "H": 3.0,
        "D": 0.0,
        "Ra": 0.0,
        "Tdop": 7.0,
        "Tdopp": 0.04,
        "Tqopp": 0.05,
        "Xd": 2.1,
        "Xdp": 0.2,
        "Xdpp": 0.18,
        "Xq": 0.5,
        "Xl": 0.15,
        "S10": 0.0,
        "S12": 0.0,
        "mva": 100.0
      },
      "mon": [
        "delta",
        "speed",
        "Eqp",
        "psidp",
        "psiqpp"
      ]
    },
    {
      "class": "Tgov1",
      "ports": {
        "speed": 0,
        "pmech": 1
      },
      "id": "tgov1_1_1",
      "params": {
        "Trate": 100.0,
        "R": 0.05,
        "T1": 0.5,
        "T2": 2.5,
        "T3": 7.5,
        "Pvmin": 0.0,
        "Pvmax": 1.2,
        "Dt": 0.0
      }
    },
    {
      "class": "Ieeet1",
      "ports": {
        "bus": 1,
        "speed": 0,
        "efd": 2
      },
      "id": "ieeet1_1_1",
      "params": {
        "Tr": 0.0,
        "Ka": 50.0,
        "Ta": 0.04,
        "Ke": -0.06,
        "Te": 0.6,
        "Kf": 0.09,
        "Tf": 1.46,
        "Vrmin": -1.0,
        "Vrmax": 1.0,
        "E1": 2.8,
        "E2": 3.73,
        "Se1": 0.04,
        "Se2": 0.33,
        "Ispdlim": 0.0
      }
    },
    {
      "class": "Branch",
      "ports": {
        "bus1": 1,
        "bus2": 2
      },
      "id": "BR_1_2",
      "params": {
        "R": 0.0,
        "X": 0.1,
        "G": 0.0,
        "B": 0.0
      }
    },
    {
      "class": "LoadZIP",
      "ports": {
        "bus": 2
      },
      "id": "load_2",
      "params": {
        "Pnom": 1.0,
        "Qnom": 0.0,
        "alphaI": 0.0,
        "alphaP": 0.0
      }
    }
  ]
}