def test_smart_start_aep_map_large_radius():
site = IEA37Site(16)
n_wt = 4
np.random.seed(0)
x, y = site.initial_position[:n_wt].T
wd_lst = np.arange(0, 360, 45)
ws_lst = [10]
turbines = hornsrev1.HornsrevV80()
site = UniformSite([1], .75)
site.default_ws = ws_lst
site.default_wd = wd_lst
aep = PyWakeAEP(wake_model=NOJ(site, turbines))
aep_1wt = aep.calculate_AEP([0], [0]).sum()
tf = TopFarmProblem(
design_vars={'x': x, 'y': y},
cost_comp=aep.get_TopFarm_cost_component(n_wt),
driver=EasyScipyOptimizeDriver(),
constraints=[SpacingConstraint(160), CircleBoundaryConstraint((0, 0), 2000)]
)
x = np.arange(-2000, 2000, 100)
y = np.arange(-2000, 2000, 100)
XX, YY = np.meshgrid(x, y)
tf.smart_start(XX, YY, aep.get_aep4smart_start(wd=wd_lst, ws=ws_lst), radius=40)
tf.evaluate()
if 0:
wt_x, wt_y = tf['x'], tf['y']
for i, _ in enumerate(wt_x, 1):
print(aep.calculate_AEP(wt_x[:i], wt_y[:i]).sum((1, 2)))
X_j, Y_j, aep_map = aep.aep_map(x, y, 0, wt_x, wt_y, ws=ws_lst, wd=wd_lst)
print(tf.evaluate())
import matplotlib.pyplot as plt
c = plt.contourf(X_j, Y_j, aep_map, 100)
plt.colorbar(c)
plt.plot(wt_x, wt_y, '2r')
for c in tf.model.constraint_components:
c.plot()
plt.axis('equal')
plt.show()
npt.assert_almost_equal(aep_1wt * n_wt, tf['AEP'], 3)
def main(obj=False, max_con_on=True):
if __name__ == '__main__':
start = time.time()
try:
import matplotlib.pyplot as plt
plt.gcf()
plot = True
except RuntimeError:
plot = False
# ------ DEFINE WIND TURBINE TYPES, LOCATIONS & STORE METADATA -------
windTurbines = WindTurbines(
names=['Ghost_T1', 'T2'],
diameters=[40, 84],
hub_heights=[70, hornsrev1.HornsrevV80().hub_height()],
ct_funcs=[dummy_thrust(ct_rated=0),
hornsrev1.HornsrevV80().ct],
power_funcs=[
cube_power(power_rated=0),
cube_power(power_rated=3000)
],
# hornsrev1.HornsrevV80()._power],
power_unit='kW')
Drotor_vector = windTurbines._diameters
power_rated_vec = np.array(
[pcurv(25) / 1000 for pcurv in windTurbines._power_funcs])
hub_height_vector = windTurbines._hub_heights
x, y = np.meshgrid(range(-840, 840, 420), range(-840, 840, 420))
n_wt = len(x.flatten())
# initial turbine positions and other independent variables
ext_vars = {'x': x.flatten(), 'y': y.flatten(), 'obj': obj * 1}
capconst = []
if max_con_on:
capconst = [
CapacityConstraint(max_capacity=30.01,
rated_power_array=power_rated_vec)
]
# ---------------- DEFINE SITE & SELECT WAKE MODEL -------------------
# site = UniformWeibullSite(p_wd=[50, 50], a=[9, 9], k=[2.3, 2.3], ti=.1, alpha=0, h_ref=100)
site = UniformWeibullSite(p_wd=[100], a=[9], k=[2.3], ti=.1)
site.default_ws = [9] # reduce the number of calculations
site.default_wd = [0] # reduce the number of calculations
wake_model = NOJ(site, windTurbines)
AEPCalc = AEPCalculator(wake_model)
# ------------- OUTPUTS AEP PER TURBINE & FARM IRR -------------------
def aep_func(x, y, type, obj, **kwargs
): # TODO fix type as input change to topfarm turbinetype
out = AEPCalc.calculate_AEP(x_i=x, y_i=y,
type_i=type.astype(int)).sum((1, 2))
if obj: # if objective is AEP; output the total Farm_AEP
out = np.sum(out)
return out * 10**6
def irr_func(aep, type, **kwargs):
idx = type.astype(int)
return economic_evaluation(Drotor_vector[idx],
power_rated_vec[idx],
hub_height_vector[idx],
aep).calculate_irr()
# ----- WRAP AEP AND IRR INTO TOPFARM COMPONENTS AND THEN GROUP -----
aep_comp = CostModelComponent(input_keys=[
topfarm.x_key, topfarm.y_key, topfarm.type_key, ('obj', obj)
],
n_wt=n_wt,
cost_function=aep_func,
output_key="aep",
output_unit="GWh",
objective=obj,
output_val=np.zeros(n_wt),
income_model=True)
comps = [aep_comp] # AEP component is always in the group
if not obj: # if objective is IRR initiate/add irr_comp
irr_comp = CostModelComponent(input_keys=[topfarm.type_key, 'aep'],
n_wt=n_wt,
cost_function=irr_func,
output_key="irr",
output_unit="%",
objective=True)
comps.append(irr_comp)
group = TopFarmGroup(comps)
# - INITIATE THE PROBLEM WITH ONLY TURBINE TYPE AS DESIGN VARIABLES -
tf = TopFarmProblem(
design_vars={
topfarm.type_key: ([0] * n_wt, 0, len(windTurbines._names) - 1)
},
cost_comp=group,
driver=EasyRandomSearchDriver(randomize_func=RandomizeAllUniform(
[topfarm.type_key]),
max_iter=1),
# driver=EasySimpleGADriver(max_gen=2, random_state=1),
constraints=capconst,
# plot_comp=TurbineTypePlotComponent(windTurbines._names),
plot_comp=NoPlot(),
ext_vars=ext_vars)
cost, state, rec = tf.optimize()
# view_model(problem, outfile='ex5_n2.html', show_browser=False)
end = time.time()
print(end - start)
# %%
# ------------------- OPTIONAL VISUALIZATION OF WAKES ----------------
post_visual, save = False, False
if post_visual:
# import matplotlib.pyplot as plt
for cou, (i, j, k, co, ae) in enumerate(
zip(rec['x'], rec['y'], rec['type'], rec['cost'],
rec['aep'])):
AEPCalc.calculate_AEP(x_i=i, y_i=j, type_i=k)
AEPCalc.plot_wake_map(wt_x=i,
wt_y=j,
wt_type=k,
wd=site.default_wd[0],
ws=site.default_ws[0],
levels=np.arange(2.5, 12, .1))
windTurbines.plot(i, j, types=k)
title = f'IRR: {-np.round(co,2)} %, AEP : {round(np.sum(ae))} GWh, '
if "totalcapacity" in rec.keys():
title += f'Total Capacity: {rec["totalcapacity"][cou]} MW'
plt.title(title)
if save:
plt.savefig(
r'..\..\..\ima2\obj_AEP_{}_MaxConstraint_{}_{}.png'.
format(obj, max_con_on, cou))
plt.show()
def setup():
site = Hornsrev1Site()
windTurbines = hornsrev1.HornsrevV80()
return site, windTurbines
def setup():
site = Hornsrev1Site()
windTurbines = hornsrev1.HornsrevV80()
ss = SelfSimilarityDeficit()
return site, windTurbines, ss
def main():
if __name__ == '__main__':
import matplotlib.pyplot as plt
from py_wake.examples.data.hornsrev1 import Hornsrev1Site
from py_wake.examples.data import hornsrev1
from py_wake.superposition_models import LinearSum
from py_wake.wind_farm_models import All2AllIterative
site = Hornsrev1Site()
windTurbines = hornsrev1.HornsrevV80()
ws = 10
D = 80
R = D / 2
WS_ilk = np.array([[[ws]]])
D_src_il = np.array([[D]])
ct_ilk = np.array([[[.8]]])
ss = SelfSimilarityDeficit()
ss20 = SelfSimilarityDeficit2020()
x, y = -np.arange(200), np.array([0])
# original model
deficit = ss.calc_deficit(WS_ilk=WS_ilk,
D_src_il=D_src_il,
dw_ijlk=x.reshape((1, len(x), 1, 1)),
cw_ijlk=y.reshape((1, len(y), 1, 1)),
ct_ilk=ct_ilk)
# updated method
deficit20 = ss20.calc_deficit(WS_ilk=WS_ilk,
D_src_il=D_src_il,
dw_ijlk=x.reshape((1, len(x), 1, 1)),
cw_ijlk=y.reshape((1, len(y), 1, 1)),
ct_ilk=ct_ilk)
plt.figure()
plt.title('Fig 11 from [1]')
plt.xlabel('x/R')
plt.ylabel('a')
plt.plot(x / R, deficit[0, :, 0, 0] / ws, label='original')
plt.plot(x / R, deficit20[0, :, 0, 0] / ws, '--', label='updated')
plt.legend()
plt.figure()
x, y = np.array([-2 * R]), np.arange(200)
deficit = ss.calc_deficit(WS_ilk=WS_ilk,
D_src_il=D_src_il,
dw_ijlk=x.reshape((1, len(x), 1, 1)),
cw_ijlk=y.reshape((1, len(y), 1, 1)),
ct_ilk=ct_ilk)
deficit20 = ss20.calc_deficit(WS_ilk=WS_ilk,
D_src_il=D_src_il,
dw_ijlk=x.reshape((1, len(x), 1, 1)),
cw_ijlk=y.reshape((1, len(y), 1, 1)),
ct_ilk=ct_ilk)
plt.title('Fig 10 from [1]')
r12 = ss.r12(x / R)
r12_20 = ss20.r12(x / R)
plt.xlabel('y/R12 (epsilon)')
plt.ylabel('f')
plt.plot((y / R) / r12,
deficit[0, :, 0, 0] / deficit[0, 0, 0, 0],
label='original')
plt.plot((y / R) / r12_20,
deficit20[0, :, 0, 0] / deficit20[0, 0, 0, 0],
'--',
label='updated')
plt.legend()
plt.figure()
noj_ss = All2AllIterative(site,
windTurbines,
wake_deficitModel=NoWakeDeficit(),
superpositionModel=LinearSum(),
blockage_deficitModel=ss)
noj_ss20 = All2AllIterative(site,
windTurbines,
wake_deficitModel=NoWakeDeficit(),
superpositionModel=LinearSum(),
blockage_deficitModel=ss20)
flow_map = noj_ss(x=[0], y=[0], wd=[270], ws=[10]).flow_map()
flow_map20 = noj_ss20(x=[0], y=[0], wd=[270], ws=[10]).flow_map()
clevels = [.9, .95, .98, .99, .995, .998, .999, 1., 1.01, 1.02, 1.03]
flow_map.plot_wake_map()
plt.contour(flow_map.x,
flow_map.y,
flow_map.WS_eff[:, :, 0, -1, 0] / 10,
levels=clevels,
colors='k',
linewidths=0.5)
plt.contour(flow_map.x,
flow_map.y,
flow_map20.WS_eff[:, :, 0, -1, 0] / 10,
levels=clevels,
colors='r',
linewidths=0.5)
plt.title('Original (black) vs updated (red)')
plt.show()
from py_wake.examples.data.iea37._iea37 import IEA37Site
from py_wake.examples.data.iea37._iea37 import IEA37_WindTurbines
# setup site, turbines and wind farm model
site = IEA37Site(16)
x, y = site.initial_position.T
windTurbines = IEA37_WindTurbines()
noj_ss = All2AllIterative(site,
windTurbines,
wake_deficitModel=NoWakeDeficit(),
superpositionModel=LinearSum(),
blockage_deficitModel=ss)
noj_ss20 = All2AllIterative(site,
windTurbines,
wake_deficitModel=NoWakeDeficit(),
superpositionModel=LinearSum(),
blockage_deficitModel=ss20)
# run wind farm simulation
sim_res = noj_ss(x, y, wd=[0, 30, 45, 60, 90], ws=[5, 10, 15])
sim_res20 = noj_ss20(x, y, wd=[0, 30, 45, 60, 90], ws=[5, 10, 15])
# calculate AEP
aep = sim_res.aep().sum()
aep20 = sim_res20.aep().sum()
# plot wake map
fig, (ax1, ax2) = plt.subplots(1,
2,
figsize=(9, 4.5),
tight_layout=True)
levels = np.array(
[.9, .95, .98, .99, .995, .998, .999, 1., 1.01, 1.02, 1.03]) * 10.
print(noj_ss)
flow_map = sim_res.flow_map(wd=30, ws=10.)
flow_map.plot_wake_map(levels=levels, ax=ax1, plot_colorbar=False)
ax1.set_title('Original Self-Similar, AEP: %.3f GWh' % aep)
# plot wake map
print(noj_ss20)
flow_map = sim_res20.flow_map(wd=30, ws=10.)
flow_map.plot_wake_map(levels=levels, ax=ax2, plot_colorbar=False)
ax2.set_title('Self-Similar 2020, AEP: %.3f GWh' % aep20)
plt.show()