def owtg_to_wtpc(owtg_file):
''' convert OWTG turbine definition file for openWind to FUSED-Wind ExtendedWindTurbinePowerCurveVT '''
wtpc = ExtendedWindTurbinePowerCurveVT()
tree = rwTurbXML.parseOWTG(owtg_file)
if tree is None:
sys.stderr.write('\n*** ERROR: could not parse turbine file "{:}"\n\n"'.format(owtg_file))
return None
vels, pwrs = rwTurbXML.getPwrTbls(tree)
wtpc.power_curve = np.array([vels, pwrs]).transpose()
vels, thrusts = rwTurbXML.getThrustTbls(tree)
wtpc.c_t_curve = np.array([vels, thrusts]).transpose()
vels, rpms = rwTurbXML.getRPMTbls(tree)
wtpc.rpm_curve = np.array([vels, rpms]).transpose()
name, capKW, hubHt, rtrDiam = rwTurbXML.getTurbParams(tree)
wtpc.hub_height = hubHt
wtpc.rotor_diameter = rtrDiam
wtpc.power_rating = 1000.0 * capKW
return wtpc
def findOWTG(path, tname, debug=False):
# find a *.owtg file in path that matches 'tname'
# return turbine name, power rating in W
fnames = os.listdir(path)
for fname in fnames:
if not fname.lower().endswith('.owtg'):
continue
tree = rwTurbXML.parseOWTG(path + '/' + fname)
if tree is None:
sys.stderr.write('\n*** ERROR: could not parse turbine file "{:}"\n\n"'.format(owtg_file))
continue
name, capKW, hubHt, rtrDiam = rwTurbXML.getTurbParams(tree)
if name == tname:
return fname, capKW*1000.0
sys.stderr.write("\nNo OWTG files in {:} match name '{:}'\n".format(path, tname))
return None, None