# -*- coding: utf-8 -*-
import pytest
from pyleecan.Classes.SlotW16 import SlotW16
from numpy import ndarray, arcsin, pi, angle
from pyleecan.Classes.LamSlot import LamSlot
from pyleecan.Classes.Slot import Slot
from pyleecan.Methods.Slot.SlotW16 import S16OutterError
# For AlmostEqual
DELTA = 1e-4
slotW16_test = list()
slotW16_wrong_test = list()
# Internal Slot
lam = LamSlot(is_internal=True, Rext=0.1325)
lam.slot = SlotW16(Zs=8, H0=5e-3, H2=30e-3, R1=5e-3, W0=pi / 12, W3=10e-3)
slotW16_test.append(
{
"test_obj": lam,
"S_exp": 2.508259e-3,
"Aw": 0.6927673,
"SW_exp": 2.33808e-3,
"H_exp": 3.5e-2,
}
)
# External Slot
lam = LamSlot(is_internal=False, Rext=0.1325, is_stator=False)
lam.slot = SlotW16(Zs=8, H0=5e-3, H2=30e-3, R1=5e-3, W0=pi / 12, W3=10e-3)
slotW16_wrong_test.append(
{
"test_obj": lam,
"S_exp": 2.508259e-3,
"Aw": 0.6927673,
"SW_exp": 2.33808e-3,
"H_exp": 3.5e-2,
}
)
[docs]class Test_SlotW16_meth(object):
"""pytest for SlotW16 methods"""
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_schematics(self, test_dict):
"""Check that the schematics is correct"""
test_obj = test_dict["test_obj"]
point_dict = test_obj.slot._comp_point_coordinate()
# Check width
assert angle(point_dict["Z1"]) == pytest.approx(-test_obj.slot.W0 / 2)
assert angle(point_dict["Z10"]) == pytest.approx(test_obj.slot.W0 / 2)
assert abs(point_dict["Z1"]) == abs(point_dict["Z10"])
assert angle(point_dict["Z2"]) == pytest.approx(-test_obj.slot.W0 / 2)
assert angle(point_dict["Z9"]) == pytest.approx(test_obj.slot.W0 / 2)
assert abs(point_dict["Z2"]) == abs(point_dict["Z9"])
# Check height
assert abs(point_dict["Z1"] - point_dict["Z2"]) == pytest.approx(
test_obj.slot.H0
)
assert abs(point_dict["Z10"] - point_dict["Z9"]) == pytest.approx(
test_obj.slot.H0
)
# Check radius
assert abs(point_dict["Z3"] - point_dict["Zc1"]) == pytest.approx(
test_obj.slot.R1
)
assert abs(point_dict["Z4"] - point_dict["Zc1"]) == pytest.approx(
test_obj.slot.R1
)
assert abs(point_dict["Z7"] - point_dict["Zc2"]) == pytest.approx(
test_obj.slot.R1
)
assert abs(point_dict["Z8"] - point_dict["Zc2"]) == pytest.approx(
test_obj.slot.R1
)
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_comp_surface(self, test_dict):
"""Check that the computation of the surface is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_surface()
a = result
b = test_dict["S_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_surface(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < 1e-5, msg
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_comp_surface_active(self, test_dict):
"""Check that the computation of the winding surface is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_surface_active()
a = result
b = test_dict["SW_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_comp_height(self, test_dict):
"""Check that the computation of the height is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_height()
a = result
b = test_dict["H_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_height(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < 1e-5, msg
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_comp_angle_opening(self, test_dict):
"""Check that the computation of the average opening angle iscorrect"""
test_obj = test_dict["test_obj"]
a = test_obj.slot.comp_angle_opening()
assert a == test_obj.slot.W0
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_angle_opening(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", slotW16_test)
def test_comp_angle_active_eq(self, test_dict):
"""Check that the computation of the average angle is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_angle_active_eq()
a = result
b = test_dict["Aw"]
msg = "Return " + str(a) + " expected " + str(b)
assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", slotW16_wrong_test)
def test_comp_point_coordinate_error(self, test_dict):
"""Check that the error is well raised"""
test_obj = test_dict["test_obj"]
with pytest.raises(S16OutterError) as context:
test_obj.slot._comp_point_coordinate()
[docs] def test_get_surface_active(self):
"""Check that the get_surface_active works when stator = false"""
lam = LamSlot(is_internal=True, Rext=0.1325, is_stator=False)
lam.slot = SlotW16(Zs=8, H0=5e-3, H2=30e-3, R1=5e-3, W0=pi / 12, W3=10e-3)
result = lam.slot.get_surface_active()
assert result.label == "Wind_Rotor_R0_T0_S0"
assert len(result.get_lines()) == 8