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Merged
sadda merged 3 commits into from
Sep 8, 2026
Merged

Replace design variable f with w to avoid Ansys intrinsic variable co… #30

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98ad9ca
Replace design variable f with w to avoid Ansys intrinsic variable co…
haitao-ZCU Sep 4, 2026
b60c338
Merge remote-tracking branch 'origin/main' into 16-replace-f-with-w
haitao-ZCU Sep 7, 2026
b19a136
Move StopTime/TimeStep formula into the parent class using w
haitao-ZCU Sep 8, 2026
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4 changes: 2 additions & 2 deletions machine_design/designs/computation.py
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Expand Up @@ -52,8 +52,8 @@ def create_setup(self, m2d: Maxwell2d) -> None:
m2d.change_symmetry_multiplier("SymmetryFactor")
# Calculation setup
setup = m2d.create_setup(name=self.setup_name)
setup.props["StopTime"] = "Nper/f"
setup.props["TimeStep"] = "1/(f*(PointPer-1))"
setup.props["StopTime"] = "2*pi*Nper/w"
setup.props["TimeStep"] = "2*pi/(w*(PointPer-1))"
setup.props["SaveFieldsType"] = "None"
setup.props["OutputPerObjectCoreLoss"] = False
setup.props["OutputPerObjectSolidLoss"] = True
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3 changes: 3 additions & 0 deletions motors/synrm_3f_36s.py
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@@ -1,5 +1,6 @@
"""Anchor `synrm_3f_36s`: 3-phase synchronous reluctance machine, 36 stator slots."""

import numpy as np
from ansys.aedt.core import Maxwell2d
from ansys.aedt.core.modeler.modeler_2d import Modeler2D

Expand Down Expand Up @@ -172,11 +173,13 @@ class Computation(ComputationBase):
def set_oper_params(self):
f = 50 # [Hz]
RotSpeed = 60 * f / self.geometry.PolePairs # [rpm]
w = 2 * np.pi * f
self.oper_params = {
"Im": "1.5*sqrt(2)A",
"epsI": "pi/4", # current angle
"InitPos": "-30deg",
"f": f"{f}Hz",
"w": f"{w}Hz",
"RotSpeed": f"{RotSpeed}rpm",
"Nper": "1/6", # number of included periods
"PointPer": "101", # number of time points per period
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23 changes: 12 additions & 11 deletions motors/synrm_5f_40s.py
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Expand Up @@ -32,6 +32,7 @@ class Computation(ComputationBase):
def set_oper_params(self):
f = 50 # [Hz]
RotSpeed = 60 * f / self.geometry.PolePairs # [rpm]
w = 2 * np.pi * f
self.oper_params = {
"Id1": "0.0A",
"Iq1": "0.0A",
Expand All @@ -42,7 +43,7 @@ def set_oper_params(self):
"Im1": "sqrt(Id1^2+Iq1^2)",
"Im3": "sqrt(Id3^2+Iq3^2)",
"InitPos": "-45deg",
"f": f"{f}Hz",
"w": f"{w}Hz",
"RotSpeed": f"{RotSpeed}rpm",
"Nper": "1/10", # number of included periods
"PointPer": "101", # number of time points per period
Expand Down Expand Up @@ -110,11 +111,11 @@ def set_output_vars(self):
"Vind_q1": "(InducedVoltage(PhaseA)*sin0_1 + InducedVoltage(PhaseB)*sin1_1 + InducedVoltage(PhaseC)*sin2_1 + InducedVoltage(PhaseD)*sin3_1 + InducedVoltage(PhaseE)*sin4_1) * 2/5",
"Vind_d3": "(InducedVoltage(PhaseA)*cos0_3 + InducedVoltage(PhaseB)*cos1_3 + InducedVoltage(PhaseC)*cos2_3 + InducedVoltage(PhaseD)*cos3_3 + InducedVoltage(PhaseE)*cos4_3) * 2/5",
"Vind_q3": "(InducedVoltage(PhaseA)*sin0_3 + InducedVoltage(PhaseB)*sin1_3 + InducedVoltage(PhaseC)*sin2_3 + InducedVoltage(PhaseD)*sin3_3 + InducedVoltage(PhaseE)*sin4_3) * 2/5",
"dIA_dt": "-Im1*2*pi*f*sin(2*pi*f*Time+epsI1-pi) - Im3*6*pi*f*sin(3*(2*pi*f*Time)+epsI3-pi)",
"dIB_dt": "-Im1*2*pi*f*sin(2*pi*f*Time-72deg+epsI1-pi) - Im3*6*pi*f*sin(3*(2*pi*f*Time-72deg)+epsI3-pi)",
"dIC_dt": "-Im1*2*pi*f*sin(2*pi*f*Time-144deg+epsI1-pi) - Im3*6*pi*f*sin(3*(2*pi*f*Time-144deg)+epsI3-pi)",
"dID_dt": "-Im1*2*pi*f*sin(2*pi*f*Time-216deg+epsI1-pi) - Im3*6*pi*f*sin(3*(2*pi*f*Time-216deg)+epsI3-pi)",
"dIE_dt": "-Im1*2*pi*f*sin(2*pi*f*Time-288deg+epsI1-pi) - Im3*6*pi*f*sin(3*(2*pi*f*Time-288deg)+epsI3-pi)",
"dIA_dt": "-Im1*w*sin(w*Time+epsI1-pi) - Im3*3*w*sin(3*(w*Time)+epsI3-pi)",
"dIB_dt": "-Im1*w*sin(w*Time-72deg+epsI1-pi) - Im3*3*w*sin(3*(w*Time-72deg)+epsI3-pi)",
"dIC_dt": "-Im1*w*sin(w*Time-144deg+epsI1-pi) - Im3*3*w*sin(3*(w*Time-144deg)+epsI3-pi)",
"dID_dt": "-Im1*w*sin(w*Time-216deg+epsI1-pi) - Im3*3*w*sin(3*(w*Time-216deg)+epsI3-pi)",
"dIE_dt": "-Im1*w*sin(w*Time-288deg+epsI1-pi) - Im3*3*w*sin(3*(w*Time-288deg)+epsI3-pi)",
"V_A": "InducedVoltage(PhaseA) + Rstat*InputCurrent(PhaseA) + Lew*dIA_dt",
"V_B": "InducedVoltage(PhaseB) + Rstat*InputCurrent(PhaseB) + Lew*dIB_dt",
"V_C": "InducedVoltage(PhaseC) + Rstat*InputCurrent(PhaseC) + Lew*dIC_dt",
Expand Down Expand Up @@ -216,11 +217,11 @@ def set_post_params(self):

def assign_stator_coils(self, m2d: Maxwell2d) -> None:
# Excitations
I_A = "Im1*cos(2*pi*f*time+epsI1-pi) + Im3*cos(3*(2*pi*f*time)+epsI3-pi)"
I_B = "Im1*cos(2*pi*f*time-72deg+epsI1-pi) + Im3*cos(3*(2*pi*f*time-72deg)+epsI3-pi)"
I_C = "Im1*cos(2*pi*f*time-144deg+epsI1-pi) + Im3*cos(3*(2*pi*f*time-144deg)+epsI3-pi)"
I_D = "Im1*cos(2*pi*f*time-216deg+epsI1-pi) + Im3*cos(3*(2*pi*f*time-216deg)+epsI3-pi)"
I_E = "Im1*cos(2*pi*f*time-288deg+epsI1-pi) + Im3*cos(3*(2*pi*f*time-288deg)+epsI3-pi)"
I_A = "Im1*cos(w*time+epsI1-pi) + Im3*cos(3*(w*time)+epsI3-pi)"
I_B = "Im1*cos(w*time-72deg+epsI1-pi) + Im3*cos(3*(w*time-72deg)+epsI3-pi)"
I_C = "Im1*cos(w*time-144deg+epsI1-pi) + Im3*cos(3*(w*time-144deg)+epsI3-pi)"
I_D = "Im1*cos(w*time-216deg+epsI1-pi) + Im3*cos(3*(w*time-216deg)+epsI3-pi)"
I_E = "Im1*cos(w*time-288deg+epsI1-pi) + Im3*cos(3*(w*time-288deg)+epsI3-pi)"
m2d.assign_coil
# Define phase windings
m2d.assign_coil(
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2 changes: 2 additions & 0 deletions tests/test_synrm_3f_36s.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import re

import numpy as np
import pytest

from motors.synrm_3f_36s import Computation, Geometry
Expand Down Expand Up @@ -75,6 +76,7 @@ def test_oper_params(computation):
"epsI": "pi/4",
"InitPos": "-30deg",
"f": "50Hz",
"w": f"{2 * np.pi * 50}Hz",
"RotSpeed": "1500.0rpm",
"Nper": "1/6",
"PointPer": "101",
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3 changes: 2 additions & 1 deletion tests/test_synrm_5f_40s.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import numpy as np
import pytest

from motors.synrm_3f_36s import Geometry as BaseGeometry
Expand Down Expand Up @@ -50,7 +51,7 @@ def test_oper_params_fully_replaced(computation2):
"Im1": "sqrt(Id1^2+Iq1^2)",
"Im3": "sqrt(Id3^2+Iq3^2)",
"InitPos": "-45deg",
"f": "50Hz",
"w": f"{2 * np.pi * 50}Hz",
"RotSpeed": "1500.0rpm",
"Nper": "1/10",
"PointPer": "101",
Expand Down
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