from os.path import join
import matplotlib.pyplot as plt
import pytest
from numpy import array, cos, linspace, ones, pi, zeros, sqrt
from pyleecan.Classes.InputCurrent import InputCurrent
from pyleecan.Classes.MagFEMM import MagFEMM
from pyleecan.Classes.Simu1 import Simu1
from pyleecan.Classes.VarLoadCurrent import VarLoadCurrent
from pyleecan.definitions import DATA_DIR
from pyleecan.Functions.load import load
from pyleecan.Functions.Plot.plot_2D import plot_2D
from Tests import TEST_DATA_DIR
from Tests import save_validation_path as save_path
from pyleecan.definitions import config_dict
[docs]@pytest.mark.long
@pytest.mark.validation
@pytest.mark.FEMM
def test_Magnetic_Phi0():
"""Validation of a SynRM machine from Syr-e r29 open source software
https://sourceforge.net/projects/syr-e/
Test compute the Torque in FEMM as a function of Phi0
and compare the results with Syr-e r29
"""
# The aim of this validation test is to compute the torque as a function of Phi0
# As (for now) there is no electrical model, we will compute the current for each Phi0 here
SynRM_001 = load(join(DATA_DIR, "Machine", "SynRM_001.json"))
felec = 50 # supply frequency [Hz]
Nt_tot = 3 # Number of time step for each current angle Phi0
Imax = 28.6878 / sqrt(2) # RMS stator current magnitude [A]
# to have one torque ripple period since torque ripple appears at multiple of 6*felec
p = SynRM_001.stator.get_pole_pair_number()
N0 = 60 * felec / p
Phi0 = (
array(
[
0.0,
15.0,
30.0,
45.0,
60.0,
67.5,
75.0,
85.0,
90.0,
95.0,
105.0,
120.0,
135.0,
150.0,
165.0,
180.0,
]
)
* pi
/ 180
)
# Expected results
Tem = [
0.08,
7.09,
13.95,
19.75,
23.75,
23.63,
21.62,
8.7655,
-0.21,
-8.8544,
-21.316,
-23.73,
-20.20,
-13.99,
-7.5445,
0.08,
]
# Definition of the main simulation
simu = Simu1(name="EM_SynRM_FL_001", machine=SynRM_001)
Na_tot = 2016
simu.input = InputCurrent(
Is=None,
Ir=None, # No winding on the rotor
N0=N0,
Nt_tot=Nt_tot,
Nrev=1 / 6,
Na_tot=Na_tot,
felec=felec,
)
varload = VarLoadCurrent(is_reuse_femm_file=True, ref_simu_index=0, is_torque=True)
varload.type_OP_matrix = 0 # Matrix N0, I0, Phi0, Tem_ref
N_simu = Phi0.size
OP_matrix = zeros((N_simu, 4))
OP_matrix[:, 0] = ones(N_simu) * N0
OP_matrix[:, 1] = ones(N_simu) * Imax
OP_matrix[:, 2] = Phi0
OP_matrix[:, 3] = Tem
varload.OP_matrix = OP_matrix
simu.var_simu = varload
# Definition of the magnetic simulation (1/2 symmetry)
assert SynRM_001.comp_periodicity() == (2, True, 2, True)
simu.mag = MagFEMM(
type_BH_stator=0,
type_BH_rotor=0,
is_periodicity_a=True,
is_periodicity_t=False,
nb_worker=3,
)
simu.force = None
simu.struct = None
Xout = simu.run()
curve_colors = config_dict["PLOT"]["COLOR_DICT"]["CURVE_COLORS"]
plot_2D(
array([x * 180 / pi for x in Xout.xoutput_dict["Phi0"].result]),
[Xout.xoutput_dict["Tem_av"].result, Xout.xoutput_dict["Tem_av_ref"].result],
color_list=curve_colors,
legend_list=["Pyleecan", "Syr-e r29"],
xlabel="Current angle [°]",
ylabel="Electrical torque [N.m]",
title="Electrical torque vs current angle",
save_path=join(save_path, "test_SynRM_Syr-e.png"),
is_show_fig=False,
)
return Xout
if __name__ == "__main__":
Xout = test_Magnetic_Phi0()
