Module Phasor.sc
Convert symmetrical components to unbalanced three phase and convert unbalanced three phase to symmetrical components.
Expand source code
"""Convert symmetrical components to unbalanced three phase and convert unbalanced three phase to symmetrical components."""
from .phasor import *
import numpy as np
class SCtoU:
"""Generate the corresponding unbalanced three-phase system using symmetrical components.
"""
def __init__(self,A0,A1,A2, roundOff=2):
"""Initalizes SCToUnbalanced objects
Args:
A0 (Phasor): Zero component of A
A1 (Phasor): Positive component of A
A2 (Phasor): Negative component of A
roundOff (int, optional): Amount of decimal points to be rounded off. Defaults to 2.
Raises:
TypeError: If A1 is not a Phasor object
TypeError: If A2 is not a Phasor object
TypeError: If A3 is not a Phasor object
"""
if isinstance(A0, Phasor):
self.A0 = A0
if isinstance(A1, Phasor):
self.A1 = A1
if isinstance(A2, Phasor):
self.A2 = A2
else:
raise TypeError(f"Unsupported argument type: {type(A2)}.")
else:
raise TypeError(f"Unsupported argument type: {type(A1)}.")
else:
raise TypeError(f"Unsupported argument type: {type(A0)}.")
self.roundOff = roundOff
self.delta = np.array([
[PhasorPD(1,0,self.roundOff), PhasorPD(1,0,self.roundOff),PhasorPD(1,0,self.roundOff)],
[PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff)**2,PhasorPD(1,120,self.roundOff)],
[PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff),PhasorPD(1,120,self.roundOff)**2]
], dtype=Phasor)
self.threeComponents = np.array([self.A0,self.A1,self.A2], dtype=Phasor)
self.unbalanced = np.dot(self.delta, self.threeComponents)
def toRecList(self):
"""Convert all Phasor objects to rectangular coordinates.
"""
RecList = []
for i in self.unbalanced:
RecList.append(toRec(i))
self.unbalanced = RecList
def toRadList(self):
"""Convert all Phasor objects to polar coordinates where angle is in radians.
"""
RadList = []
for i in self.unbalanced:
RadList.append(toRad(i))
self.unbalanced = RadList
def toDegList(self):
"""Convert all Phasor objects to polar coordinates where angle is in degrees.
"""
DegList = []
for i in self.unbalanced:
DegList.append(toDeg(i))
self.unbalanced = DegList
def __str__(self):
"""Return the unbalanced system in a String format
Returns:
String: Unbalanced three-phase system
"""
return f"""
A - {self.unbalanced[0]}
B - {self.unbalanced[1]}
C - {self.unbalanced[2]}
"""
def __repr__(self):
"""Return the unbalanced system in a String format
Returns:
String: Unbalanced three-phase system
"""
return f"""
A - {self.unbalanced[0]}
B - {self.unbalanced[1]}
C - {self.unbalanced[2]}
"""
class UtoSC:
"""Convert unbalanced three phase system int symmetrical components.
"""
def __init__(self,A,B,C, roundOff=2):
"""Initialize unblancedToSC objects
Args:
A (Phasor): Phasor A
B (Phasor): Phasor B
C (Phasor): Phasor C
roundOff (int, optional): Number of decimat points to be roundoff. Defaults to 2.
Raises:
TypeError: if A is not a Phasor object
TypeError: if B is not a Phasor object
TypeError: if C is not a Phasor object
"""
if isinstance(A, Phasor):
self.A = A
if isinstance(B, Phasor):
self.B = B
if isinstance(C, Phasor):
self.C = C
else:
raise TypeError(f"Unsupported argument type: {type(C)}.")
else:
raise TypeError(f"Unsupported argument type: {type(B)}.")
else:
raise TypeError(f"Unsupported argument type: {type(A)}.")
self.roundOff = roundOff
self.deltaInverse = np.array([
[PhasorPD(1,0,self.roundOff), PhasorPD(1,0,self.roundOff),PhasorPD(1,0,self.roundOff)],
[PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff),PhasorPD(1,120,self.roundOff)**2],
[PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff)**2,PhasorPD(1,120,self.roundOff)]
], dtype=Phasor)/3
self.threePhasors = np.array([self.A,self.B,self.C], dtype=Phasor)
self.components = np.dot(self.deltaInverse, self.threePhasors)
self.zero = [self.components[0],self.components[0],self.components[0]]
self.positive = [self.components[1],self.components[1]*PhasorPD(1,120,self.roundOff),self.components[1]*(PhasorPD(1,120,self.roundOff)**2)]
self.negative = [self.components[2],self.components[2]*(PhasorPD(1,120,self.roundOff)**2),self.components[2]*PhasorPD(1,120,self.roundOff)]
self.allComponents = [self.zero,self.positive,self.negative]
def toRecList(self):
"""Convert all Phasor objects to rectangular coordinates.
"""
RecList = []
for i in self.components:
RecList.append(toRec(i))
self.components = RecList
def toRadList(self):
"""Convert all Phasor objects to polar coordinates where angle is in radians.
"""
RadList = []
for i in self.components:
RadList.append(toRad(i))
self.components = RadList
def toDegList(self):
"""Convert all Phasor objects to polar coordinates where angle is in degrees.
"""
DegList = []
for i in self.components:
DegList.append(toDeg(i))
self.components = DegList
def zero(self):
"""Print zero components
Returns:
String: Zero components
"""
return f"""Zero Symmetric Components :
A0 - {self.zero[0]}
B0 - {self.zero[1]}
C0 - {self.zero[2]}
"""
def positive(self):
"""Print positive components
Returns:
String: Positive components
"""
return f"""Positive Symmetric Components :
A1 - {self.positive[0]}
B1 - {self.positive[1]}
C1 - {self.positive[2]}
"""
def negative(self):
"""Print negative components
Returns:
String: Negative components
"""
return f"""Negative Symmetric Components :
A2 - {self.negative[0]}
B2 - {self.negative[1]}
C2 - {self.negative[2]}
"""
def __str__(self):
"""Print all symmetrical components
Returns:
String: All symmetrical components
"""
return f"""
A0 - {self.zero[0]}
A1 - {self.positive[0]}
A2 - {self.negative[0]}
B0 - {self.zero[1]}
B1 - {self.positive[1]}
B2 - {self.negative[1]}
C0 - {self.zero[2]}
C1 - {self.positive[2]}
C2 - {self.negative[2]}
"""
def __repr__(self):
"""Print all symmetrical components
Returns:
String: All symmetrical components
"""
return f"""
A0 - {self.zero[0]}
A1 - {self.positive[0]}
A2 - {self.negative[0]}
B0 - {self.zero[1]}
B1 - {self.positive[1]}
B2 - {self.negative[1]}
C0 - {self.zero[2]}
C1 - {self.positive[2]}
C2 - {self.negative[2]}
"""Classes
class SCtoU (A0, A1, A2, roundOff=2)-
Generate the corresponding unbalanced three-phase system using symmetrical components.
Initalizes SCToUnbalanced objects
Args
A0:Phasor- Zero component of A
A1:Phasor- Positive component of A
A2:Phasor- Negative component of A
roundOff:int, optional- Amount of decimal points to be rounded off. Defaults to 2.
Raises
TypeError- If A1 is not a Phasor object
TypeError- If A2 is not a Phasor object
TypeError- If A3 is not a Phasor object
Expand source code
class SCtoU: """Generate the corresponding unbalanced three-phase system using symmetrical components. """ def __init__(self,A0,A1,A2, roundOff=2): """Initalizes SCToUnbalanced objects Args: A0 (Phasor): Zero component of A A1 (Phasor): Positive component of A A2 (Phasor): Negative component of A roundOff (int, optional): Amount of decimal points to be rounded off. Defaults to 2. Raises: TypeError: If A1 is not a Phasor object TypeError: If A2 is not a Phasor object TypeError: If A3 is not a Phasor object """ if isinstance(A0, Phasor): self.A0 = A0 if isinstance(A1, Phasor): self.A1 = A1 if isinstance(A2, Phasor): self.A2 = A2 else: raise TypeError(f"Unsupported argument type: {type(A2)}.") else: raise TypeError(f"Unsupported argument type: {type(A1)}.") else: raise TypeError(f"Unsupported argument type: {type(A0)}.") self.roundOff = roundOff self.delta = np.array([ [PhasorPD(1,0,self.roundOff), PhasorPD(1,0,self.roundOff),PhasorPD(1,0,self.roundOff)], [PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff)**2,PhasorPD(1,120,self.roundOff)], [PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff),PhasorPD(1,120,self.roundOff)**2] ], dtype=Phasor) self.threeComponents = np.array([self.A0,self.A1,self.A2], dtype=Phasor) self.unbalanced = np.dot(self.delta, self.threeComponents) def toRecList(self): """Convert all Phasor objects to rectangular coordinates. """ RecList = [] for i in self.unbalanced: RecList.append(toRec(i)) self.unbalanced = RecList def toRadList(self): """Convert all Phasor objects to polar coordinates where angle is in radians. """ RadList = [] for i in self.unbalanced: RadList.append(toRad(i)) self.unbalanced = RadList def toDegList(self): """Convert all Phasor objects to polar coordinates where angle is in degrees. """ DegList = [] for i in self.unbalanced: DegList.append(toDeg(i)) self.unbalanced = DegList def __str__(self): """Return the unbalanced system in a String format Returns: String: Unbalanced three-phase system """ return f""" A - {self.unbalanced[0]} B - {self.unbalanced[1]} C - {self.unbalanced[2]} """ def __repr__(self): """Return the unbalanced system in a String format Returns: String: Unbalanced three-phase system """ return f""" A - {self.unbalanced[0]} B - {self.unbalanced[1]} C - {self.unbalanced[2]} """Methods
def toDegList(self)-
Convert all Phasor objects to polar coordinates where angle is in degrees.
Expand source code
def toDegList(self): """Convert all Phasor objects to polar coordinates where angle is in degrees. """ DegList = [] for i in self.unbalanced: DegList.append(toDeg(i)) self.unbalanced = DegList def toRadList(self)-
Convert all Phasor objects to polar coordinates where angle is in radians.
Expand source code
def toRadList(self): """Convert all Phasor objects to polar coordinates where angle is in radians. """ RadList = [] for i in self.unbalanced: RadList.append(toRad(i)) self.unbalanced = RadList def toRecList(self)-
Convert all Phasor objects to rectangular coordinates.
Expand source code
def toRecList(self): """Convert all Phasor objects to rectangular coordinates. """ RecList = [] for i in self.unbalanced: RecList.append(toRec(i)) self.unbalanced = RecList
class UtoSC (A, B, C, roundOff=2)-
Convert unbalanced three phase system int symmetrical components.
Initialize unblancedToSC objects
Args
A:Phasor- Phasor A
B:Phasor- Phasor B
C:Phasor- Phasor C
roundOff:int, optional- Number of decimat points to be roundoff. Defaults to 2.
Raises
TypeError- if A is not a Phasor object
TypeError- if B is not a Phasor object
TypeError- if C is not a Phasor object
Expand source code
class UtoSC: """Convert unbalanced three phase system int symmetrical components. """ def __init__(self,A,B,C, roundOff=2): """Initialize unblancedToSC objects Args: A (Phasor): Phasor A B (Phasor): Phasor B C (Phasor): Phasor C roundOff (int, optional): Number of decimat points to be roundoff. Defaults to 2. Raises: TypeError: if A is not a Phasor object TypeError: if B is not a Phasor object TypeError: if C is not a Phasor object """ if isinstance(A, Phasor): self.A = A if isinstance(B, Phasor): self.B = B if isinstance(C, Phasor): self.C = C else: raise TypeError(f"Unsupported argument type: {type(C)}.") else: raise TypeError(f"Unsupported argument type: {type(B)}.") else: raise TypeError(f"Unsupported argument type: {type(A)}.") self.roundOff = roundOff self.deltaInverse = np.array([ [PhasorPD(1,0,self.roundOff), PhasorPD(1,0,self.roundOff),PhasorPD(1,0,self.roundOff)], [PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff),PhasorPD(1,120,self.roundOff)**2], [PhasorPD(1,0,self.roundOff), PhasorPD(1,120,self.roundOff)**2,PhasorPD(1,120,self.roundOff)] ], dtype=Phasor)/3 self.threePhasors = np.array([self.A,self.B,self.C], dtype=Phasor) self.components = np.dot(self.deltaInverse, self.threePhasors) self.zero = [self.components[0],self.components[0],self.components[0]] self.positive = [self.components[1],self.components[1]*PhasorPD(1,120,self.roundOff),self.components[1]*(PhasorPD(1,120,self.roundOff)**2)] self.negative = [self.components[2],self.components[2]*(PhasorPD(1,120,self.roundOff)**2),self.components[2]*PhasorPD(1,120,self.roundOff)] self.allComponents = [self.zero,self.positive,self.negative] def toRecList(self): """Convert all Phasor objects to rectangular coordinates. """ RecList = [] for i in self.components: RecList.append(toRec(i)) self.components = RecList def toRadList(self): """Convert all Phasor objects to polar coordinates where angle is in radians. """ RadList = [] for i in self.components: RadList.append(toRad(i)) self.components = RadList def toDegList(self): """Convert all Phasor objects to polar coordinates where angle is in degrees. """ DegList = [] for i in self.components: DegList.append(toDeg(i)) self.components = DegList def zero(self): """Print zero components Returns: String: Zero components """ return f"""Zero Symmetric Components : A0 - {self.zero[0]} B0 - {self.zero[1]} C0 - {self.zero[2]} """ def positive(self): """Print positive components Returns: String: Positive components """ return f"""Positive Symmetric Components : A1 - {self.positive[0]} B1 - {self.positive[1]} C1 - {self.positive[2]} """ def negative(self): """Print negative components Returns: String: Negative components """ return f"""Negative Symmetric Components : A2 - {self.negative[0]} B2 - {self.negative[1]} C2 - {self.negative[2]} """ def __str__(self): """Print all symmetrical components Returns: String: All symmetrical components """ return f""" A0 - {self.zero[0]} A1 - {self.positive[0]} A2 - {self.negative[0]} B0 - {self.zero[1]} B1 - {self.positive[1]} B2 - {self.negative[1]} C0 - {self.zero[2]} C1 - {self.positive[2]} C2 - {self.negative[2]} """ def __repr__(self): """Print all symmetrical components Returns: String: All symmetrical components """ return f""" A0 - {self.zero[0]} A1 - {self.positive[0]} A2 - {self.negative[0]} B0 - {self.zero[1]} B1 - {self.positive[1]} B2 - {self.negative[1]} C0 - {self.zero[2]} C1 - {self.positive[2]} C2 - {self.negative[2]} """Methods
def negative(self)-
Print negative components
Returns
String- Negative components
Expand source code
def negative(self): """Print negative components Returns: String: Negative components """ return f"""Negative Symmetric Components : A2 - {self.negative[0]} B2 - {self.negative[1]} C2 - {self.negative[2]} """ def positive(self)-
Print positive components
Returns
String- Positive components
Expand source code
def positive(self): """Print positive components Returns: String: Positive components """ return f"""Positive Symmetric Components : A1 - {self.positive[0]} B1 - {self.positive[1]} C1 - {self.positive[2]} """ def toDegList(self)-
Convert all Phasor objects to polar coordinates where angle is in degrees.
Expand source code
def toDegList(self): """Convert all Phasor objects to polar coordinates where angle is in degrees. """ DegList = [] for i in self.components: DegList.append(toDeg(i)) self.components = DegList def toRadList(self)-
Convert all Phasor objects to polar coordinates where angle is in radians.
Expand source code
def toRadList(self): """Convert all Phasor objects to polar coordinates where angle is in radians. """ RadList = [] for i in self.components: RadList.append(toRad(i)) self.components = RadList def toRecList(self)-
Convert all Phasor objects to rectangular coordinates.
Expand source code
def toRecList(self): """Convert all Phasor objects to rectangular coordinates. """ RecList = [] for i in self.components: RecList.append(toRec(i)) self.components = RecList def zero(self)-
Print zero components
Returns
String- Zero components
Expand source code
def zero(self): """Print zero components Returns: String: Zero components """ return f"""Zero Symmetric Components : A0 - {self.zero[0]} B0 - {self.zero[1]} C0 - {self.zero[2]} """