def test_max_turbines_per_cable(turbine_rating, expected):
config = deepcopy(config_full_grid)
config["array_system_design"]["cables"] = "XLPE_630mm_33kV"
config["turbine"]["turbine_rating"] = turbine_rating
array = ArraySystemDesign(config)
array.run()
assert array.cables["XLPE_630mm_33kV"].max_turbines == expected
def test_grid_creation(config, shape, num_null):
array = ArraySystemDesign(config)
array.run()
assert array.turbines_x.shape == shape
assert array.turbines_y.shape == shape
assert np.isnan(array.turbines_x).sum() == num_null
assert np.isnan(array.turbines_y).sum() == num_null
assert isinstance(array.oss_x, float)
assert isinstance(array.oss_y, float)
shape = (shape[0], shape[1] + 1, 2)
assert array.coordinates.shape == shape
assert np.isnan(array.coordinates).sum() == 2 * num_null
def test_total_cable_length(config, total_length):
array = ArraySystemDesign(config)
array.run()
val = round(sum(val.sum() for val in array.cable_lengths_by_type.values()),
2)
assert total_length == val
val = round(sum(array.total_cable_length_by_type.values()), 2)
assert total_length == val
val = round(
sum(length * n
for val in array.design_result["array_system"]["cables"].values()
for length, n in val["cable_sections"]),
2,
)
assert total_length == val
def test_string_creation(
config,
num_full_strings,
num_partial_strings,
num_turbines_full_string,
num_turbines_partial_string,
):
array = ArraySystemDesign(config)
array.run()
assert array
string_properties = (
(num_full_strings, "num_full_strings"),
(num_partial_strings, "num_partial_strings"),
(num_turbines_full_string, "num_turbines_full_string"),
(num_turbines_partial_string, "num_turbines_partial_string"),
)
for val, name in string_properties:
assert val == array.__getattribute__(name)
def test_cable_not_found():
array = ArraySystemDesign(config_cables_from_file_fail)
with pytest.raises(LibraryItemNotFoundError):
array.run()
def test_array_system_creation():
array = ArraySystemDesign(config_full_grid)
array.run()
assert array
def test_floating_calculations():
base = deepcopy(config_full_ring)
base["site"]["depth"] = 50
number = base["plant"]["num_turbines"]
sim = ArraySystemDesign(base)
sim.run()
base_length = sim.total_length
floating_no_cat = deepcopy(base)
floating_no_cat["site"]["depth"] = 250
floating_no_cat["array_system_design"]["touchdown_distance"] = 0
sim2 = ArraySystemDesign(floating_no_cat)
sim2.run()
no_cat_length = sim2.total_length
assert no_cat_length == pytest.approx(base_length + 2 * (200 / 1000) * number)
floating_cat = deepcopy(base)
floating_cat["site"]["depth"] = 250
sim3 = ArraySystemDesign(floating_cat)
sim3.run()
with_cat_length = sim3.total_length
assert with_cat_length < no_cat_length
