def test_calc_series():
pvconst = PVconstants()
pvcells = [
PVcell(pvconst=pvconst, Tcell=323),
PVcell(pvconst=pvconst, Ee=0.75, Tcell=313),
PVcell(pvconst=pvconst, Ee=0.55, Tcell=303)
]
i_at_vrbd = np.asarray([
np.interp(pvc.VRBD, pvc.Vcell.flat, pvc.Icell.flat) for pvc in pvcells
])
icells = np.asarray([pvc.Icell.flatten() for pvc in pvcells])
vcells = np.asarray([pvc.Vcell.flatten() for pvc in pvcells])
isc = np.asarray([pvc.Isc for pvc in pvcells])
i, v = pvconst.calcSeries(icells, vcells, isc.mean(), i_at_vrbd.max())
iv_old = np.loadtxt(os.path.join(BASE_DIR, 'calc_series_test_iv_old.dat'))
iv_expected = np.loadtxt(os.path.join(BASE_DIR, 'calc_series_test_iv.dat'))
# noinspection PyTypeChecker
iv_calc = np.concatenate([[i], [v]], axis=0).T
# noinspection PyTypeChecker
ok_(np.allclose(iv_calc, iv_expected))
assert np.allclose(iv_old[0, :], np.interp(iv_old[1, :], v, i), 0.01, 0.01)
assert np.allclose(iv_old[1, :],
np.interp(iv_old[0, :], np.flipud(i), np.flipud(v)),
0.1, 0.1)
return i, v
def test_calc_series():
pvconst = PVconstants()
pvcells = [
PVcell(pvconst=pvconst, Tcell=323),
PVcell(pvconst=pvconst, Ee=0.75, Tcell=313),
PVcell(pvconst=pvconst, Ee=0.55, Tcell=303)
]
i_at_vrbd = np.asarray([
np.interp(pvc.VRBD, pvc.Vcell.flat, pvc.Icell.flat) for pvc in pvcells
])
icells = np.asarray([pvc.Icell.flatten() for pvc in pvcells])
vcells = np.asarray([pvc.Vcell.flatten() for pvc in pvcells])
isc = np.asarray([pvc.Isc for pvc in pvcells])
i, v = pvconst.calcSeries(icells, vcells, isc.mean(), i_at_vrbd.max())
iv = np.loadtxt(os.path.join(BASE_DIR, 'calc_series_test_iv.dat'))
# noinspection PyTypeChecker
ok_(np.allclose(i, iv[0]))
# noinspection PyTypeChecker
ok_(np.allclose(v, iv[1], rtol=1e-4))
return i, v