{
  "header": {
    "format_version": 0.2,
    "format_revision": 0,
    "case_name": "FourBusLimits",
    "case_description": "GENROU with ESDC1A and a REGCA/REECB/REPCA plant beside a long charged line.",
    "case_comments": "Monitors bus voltages, machine and plant power, field voltage, and the plant voltage reference."
  },
  "params": {
    "freq_base": 60.0,
    "va_base": 100000000.0
  },
  "buses": [
    {
      "number": 1,
      "class": "BusInfinite",
      "name": "Grid",
      "init": {
        "Vr": 1.0,
        "Vi": 0.0
      },
      "params": {
        "kv": 115.0
      }
    },
    {
      "number": 2,
      "class": "Bus",
      "name": "Machine",
      "init": {
        "Vr": 1.0512044703293908,
        "Vi": 0.03945205479452054
      },
      "params": {
        "kv": 115.0
      },
      "mon": [
        "Vm"
      ]
    },
    {
      "number": 3,
      "class": "Bus",
      "name": "Plant",
      "init": {
        "Vr": 1.050476503149779,
        "Vi": 0.053694079654108655
      },
      "params": {
        "kv": 115.0
      },
      "mon": [
        "Vm"
      ]
    },
    {
      "number": 4,
      "class": "Bus",
      "name": "Remote",
      "init": {
        "Vr": 1.0683356616298911,
        "Vi": 0.020547945205479447
      },
      "params": {
        "kv": 115.0
      },
      "mon": [
        "Vm"
      ]
    }
  ],
  "signals": [
    {
      "signal_id": 0,
      "name": "Machine Speed"
    },
    {
      "signal_id": 1,
      "name": "Excitation Field"
    },
    {
      "signal_id": 2,
      "name": "Active Current Command"
    },
    {
      "signal_id": 3,
      "name": "Reactive Current Command"
    },
    {
      "signal_id": 4,
      "name": "Plant Current Real"
    },
    {
      "signal_id": 5,
      "name": "Plant Current Imaginary"
    },
    {
      "signal_id": 6,
      "name": "Plant Active Power"
    },
    {
      "signal_id": 7,
      "name": "Plant Reactive Power"
    },
    {
      "signal_id": 8,
      "name": "Reactive Command"
    },
    {
      "signal_id": 9,
      "name": "Active Command"
    }
  ],
  "devices": [
    {
      "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": "Branch",
      "ports": {
        "bus1": 2,
        "bus2": 3
      },
      "id": "BR_2_3",
      "params": {
        "R": 0.0,
        "X": 0.05,
        "G": 0.0,
        "B": 0.0
      }
    },
    {
      "class": "Branch",
      "ports": {
        "bus1": 2,
        "bus2": 4
      },
      "id": "BR_2_4",
      "params": {
        "R": 0.0,
        "X": 0.1,
        "G": 0.0,
        "B": 1.6
      }
    },
    {
      "class": "Branch",
      "ports": {
        "bus1": 1,
        "bus2": 4
      },
      "id": "BR_1_4",
      "params": {
        "R": 0.0,
        "X": 0.1,
        "G": 0.0,
        "B": 0.0
      }
    },
    {
      "class": "Genrou",
      "ports": {
        "bus": 2,
        "speed": 0,
        "efd": 1
      },
      "id": "2_1_genrou",
      "params": {
        "p0": 0.30000001192092896,
        "q0": -0.5,
        "mva": 100.0,
        "H": 3.0,
        "D": 0.0,
        "Ra": 0.0,
        "Tdop": 7.0,
        "Tdopp": 0.04,
        "Tqop": 0.75,
        "Tqopp": 0.05,
        "Xd": 1.8,
        "Xdp": 0.3,
        "Xdpp": 0.2,
        "Xq": 1.7,
        "Xqp": 0.55,
        "Xqpp": 0.2,
        "Xl": 0.15,
        "S10": 0.0,
        "S12": 0.0
      },
      "mon": [
        "p",
        "q",
        "speed"
      ]
    },
    {
      "class": "Esdc1a",
      "ports": {
        "bus": 2,
        "speed": 0,
        "efd": 1
      },
      "id": "2_1_esdc1a",
      "params": {
        "Tr": 0.02,
        "Ka": 40.0,
        "Ta": 0.1,
        "Tb": 0.05,
        "Tc": 0.05,
        "Vrmax": 5.0,
        "Vrmin": -5.0,
        "Ke": 1.0,
        "Te": 0.5,
        "Kf": 0.05,
        "Tf1": 0.7,
        "Spdmlt": false,
        "E1": 2.8,
        "Se1": 0.0,
        "E2": 3.7,
        "Se2": 0.0,
        "UEL": 2,
        "exclim": true
      },
      "mon": [
        "efd",
        "vf"
      ]
    },
    {
      "class": "Regca",
      "ports": {
        "bus": 3,
        "ipcmd": 2,
        "iqcmd": 3,
        "ir": 4,
        "ii": 5,
        "pbranch": 6,
        "qbranch": 7
      },
      "id": "3_1_regca",
      "params": {
        "p0": 0.30000001192092896,
        "q0": 0.0,
        "mva": 100.0,
        "Tg": 0.02,
        "TM": 0.02,
        "Rqmax": 10.0,
        "Rqmin": -10.0,
        "Rpmax": 10.0,
        "sL": false,
        "IL1": 1.22,
        "VL0": 0.4,
        "VL1": 0.9,
        "VA0": 0.4,
        "VA1": 0.8,
        "Vhvmax": 1.08
      },
      "mon": [
        "p",
        "q"
      ]
    },
    {
      "class": "Reecb",
      "ports": {
        "bus": 3,
        "ipcmd": 2,
        "iqcmd": 3,
        "pe": 6,
        "qgen": 7,
        "qext": 8,
        "pref": 9
      },
      "id": "3_1_reecb",
      "params": {
        "mva": 100.0,
        "PfFlag": false,
        "VFlag": false,
        "QFlag": true,
        "Pqflag": false,
        "Trv": 0.02,
        "Tp": 0.02,
        "Vdip": 0.5,
        "Vup": 1.5,
        "dbd1": -0.05,
        "dbd2": 0.05,
        "kqv": 0.0,
        "Iql1": -1.1,
        "Iqh1": 1.1,
        "Qmax": 0.8,
        "Qmin": -0.8,
        "Kqp": 1.0,
        "Kqi": 1.0,
        "Vmax": 1.1,
        "Vmin": 0.9,
        "Kvp": 2.0,
        "Kvi": 5.0,
        "Tiq": 0.02,
        "Tpord": 0.02,
        "dPmax": 10.0,
        "dPmin": -10.0,
        "Pmax": 1.0,
        "Pmin": 0.0,
        "Imax": 1.2
      }
    },
    {
      "class": "Repca",
      "ports": {
        "bus": 3,
        "ir": 4,
        "ii": 5,
        "p": 6,
        "q": 7,
        "qext": 8,
        "pext": 9
      },
      "id": "3_1_repca",
      "params": {
        "mva": 100.0,
        "VcompFlag": true,
        "RefFlag": true,
        "Freqflag": true,
        "Tfltr": 0.02,
        "Vfrz": 0.3,
        "Rc": 0.0,
        "Xc": 0.0,
        "Kc": 0.0,
        "dbdlow": 0.0,
        "dbdupper": 0.0,
        "emax": 1.0,
        "emin": -1.0,
        "Kp": 1.0,
        "Ki": 5.0,
        "Qmax": 1.15,
        "Qmin": 0.95,
        "Tft": 0.0,
        "Tfv": 0.05,
        "Tp": 0.02,
        "fdbd1": 0.0,
        "fdbd2": 0.0,
        "Ddn": 0.0,
        "Dup": 0.0,
        "femax": 1.0,
        "femin": -1.0,
        "Kpg": 1.0,
        "Kig": 2.0,
        "Pmax": 0.6,
        "Pmin": 0.1,
        "Tlag": 0.05
      },
      "mon": [
        "qext"
      ]
    }
  ]
}