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import numpy as np
import copy
class MeterConnector(object):
"""接线判断"""
def __init__(self, data):
"""ctnum 3:
data = {'ua':ua, 'ub':ub, 'uc':uc, 'ia':ia, 'ib':ib, 'ic':ic,
'ctnum':ctnum, 'angleAB':angleAB, 'angleAC':angleAC,
'phA':phA, 'phB':phB, 'phC':phC}
ctnum 2:
data = {'uab':uab, 'ucb':ucb, 'ia':ia, 'ic':ic, 'ctnum':ctnum,
'angleUabUcb':angleUabUcb, 'phUabIa':phUabIa, 'phUcbIc':phUcbIc}
"""
self.data = data
self.derection = True
self.ui_phasor = None
def _is_positive_phase_sequence(self):
if self.data["ctnum"] == 3:
if self.data["angleAB"] >= 0 and self.data["angleAC"] < 0:
self.derection = True
elif self.data["angleAB"] < 0 and self.data["angleAC"] >= 0:
self.derection = False
elif self.data["angleAB"] >= 0 and self.data["angleAC"] >= 0 and \
self.data["angleAC"] - self.data["angleAB"] < 0:
self.derection = False
elif self.data["angleAB"] >= 0 and self.data["angleAC"] >= 0 and \
self.data["angleAC"] - self.data["angleAB"] >= 0:
self.derection = True
elif self.data["angleAB"] < 0 and self.data["angleAC"] < 0 and \
self.data["angleAC"] - self.data["angleAB"] < 0:
self.derection = False
elif self.data["angleAB"] < 0 and self.data["angleAC"] < 0 and \
self.data["angleAC"] - self.data["angleAB"] >= 0:
self.derection = True
else:
if self.data["angleUabUcb"] < 0:
self.derection = True
else:
self.derection = False
@staticmethod
def _pu_UI(data, ctnum):
""" """
rst = {}
k = 1.5
if ctnum == 3:
max_U = np.max([data["ua"], data["ub"], data["uc"]])
max_I = np.max([data["ia"], data["ib"], data["ic"]])
for u_key in ["ua", "ub", "uc"]:
rst[u_key] = [k * data[u_key] / (max_U + 0.01), data[u_key]]
for i_key in ["ia", "ib", "ic"]:
rst[i_key] = [data[i_key] / (max_I + 0.01), data[i_key]]
else:
max_U = np.max([data["uab"], data["ucb"]])
max_I = np.max([data["ia"], data["ic"]])
for u_key in ["uab", "ucb"]:
rst[u_key] = k * data[u_key] / (max_U + 0.01)
rst['ua'] = [rst['uab'], data["uab"] / 1.732]
rst['ub'] = [rst['ucb'], data["ucb"] / 1.732]
rst['uc'] = [0.5 * (rst['uab'] + rst['ucb']),
0.5 * (data["uab"] + data["ucb"]) / 1.732]
for i_key in ["ia", "ic"]:
rst[i_key] = [data[i_key] / (max_I + 0.01), data[i_key]]
rst['ib'] = [None, None]
return rst
def _phi_cal(self, data, ctnum):
""" phi_uabc:[angleAB, angleAC] or [angleUabUcb]
phi_iabc:[phA, phB, phC] or [phUabIa, phUcbIc] """
phi = {}
if not self.derection:
delt_phi = -30
else:
delt_phi = 30
if ctnum == 3:
phi['ua'] = 0
phi['ub'] = -data["angleAB"]
phi['uc'] = -data["angleAC"]
phi['uab'] = phi['ua'] + delt_phi
phi['ucb'] = phi['uc'] - delt_phi
phi['ia'] = -data["phA"]
phi['ib'] = phi['ub'] - data["phB"]
phi['ic'] = phi['uc'] - data["phC"]
else:
if data["angleUabUcb"] > 0:
ph_uab_init = -30
else:
ph_uab_init = 30
phi['uab'] = ph_uab_init
phi['ucb'] = phi['uab'] - data["angleUabUcb"]
phi['ia'] = phi['uab'] - data["phUabIa"]
phi['ib'] = None
phi['ic'] = phi['ucb'] - data["phUcbIc"]
phi['ua'] = phi['uab'] - delt_phi
phi['ub'] = phi['ua'] - delt_phi * 4
phi['uc'] = phi['ucb'] + delt_phi
return phi
@staticmethod
def _format_convert(r, phi, ctnum):
u = {}
r_copy = copy.deepcopy(r)
phi_copy = copy.deepcopy(phi)
for item in ["ua", "ub", "uc", "ia", "ib", "ic"]:
u[item] = r_copy[item] + [phi_copy[item]]
return u
def output(self):
self._is_positive_phase_sequence()
r_uiabc = self._pu_UI(self.data,
self.data['ctnum'])
phi_uiabc = self._phi_cal(self.data,
self.data['ctnum'])
# self.ui_phasor = self._format_convert(r_uiabc,
# phi_uiabc,
# self.data['ctnum'])
return self._format_convert(r_uiabc, phi_uiabc, self.data['ctnum'])
def meter_result(electrics):
"""调用算法,得到ia ib ic ua ub uc"""
ctnum = electrics.get("ctnum")
if ctnum == 2:
angleUabUcb = electrics.get("angleUabUcb")
ia = electrics.get("ia")
ic = electrics.get("ic")
phUabIa = electrics.get("phUabIa")
phUcbIc = electrics.get("phUcbIc")
uab = electrics.get("uab")
ucb = electrics.get("ucb")
data = {'ctnum': 2, 'angleUabUcb': angleUabUcb, 'ia': ia, 'ic': ic,
'phUabIa': phUabIa, 'phUcbIc': phUcbIc, 'uab': uab,
'ucb': ucb}
else:
ua = electrics.get("ua")
ub = electrics.get("ub")
uc = electrics.get("uc")
ia = electrics.get("ia")
ib = electrics.get("ib")
ic = electrics.get("ic")
angleAB = electrics.get("angleAB")
angleAC = electrics.get("angleAC")
phA = electrics.get("phA")
phB = electrics.get("phB")
phC = electrics.get("phC")
data = {'ctnum': 3, 'ua': ua, 'ub': ub, 'uc': uc, 'ia': ia,
'ib': ib, 'ic': ic, 'angleAB': angleAB, 'angleAC': angleAC,
'phA': phA, 'phB': phB, 'phC': phC}
# 调用算法接口
mc = MeterConnector(data)
return mc.output()
if __name__ == "__main__":
# data = {'ctnum': 2, 'angleUabUcb': -60, 'ia': 0.896, 'ic': 0.896,
# 'phUabIa': 29.799, 'phUcbIc': -32.4, 'uab': 103.79, 'ucb': 103.42}
# data = {'ctnum': 2, 'angleUabUcb': -60, 'ia': 0.896, 'ic': 0.896,
# 'phUabIa': 50.799, 'phUcbIc': -9.4, 'uab': 103.79, 'ucb': 103.42}
# data = {'ctnum': 2, 'angleUabUcb': 60, 'ia': 3.009, 'ic': 3.071,
# 'phUabIa': 4.7, 'phUcbIc': 62.5, 'uab': 103.79, 'ucb': 103.42}
data = {'ctnum': 3, 'ua': 60, 'ub': 60, 'uc': 60, 'ia': 1.707, 'ib': 1.35,
'ic': 1.53, 'angleAB': 120, 'angleAC': -120, 'phA': 33.09,
'phB': 28.9, 'phC': 37}
data = {'ctnum': 3, 'ua': 60, 'ub': 60, 'uc': 60, 'ia': 2.27, 'ib': 2.23,
'ic': 2.35, 'angleAB': -120, 'angleAC': 120, 'phA': 11.9,
'phB': 10.08, 'phC': 12.1}
data1 = MeterConnector(data)
# print(data1.ui_phasor)