def data_setter(self, data):
self.lats = data['lats']
self.longs = data['longs']
self.tilt = data['tilt']
self.surf_azi = data['surf_azi'] #since panel faces south
self.altitude = data['altitude']
self.name = data['name']
self.timezone = data['timezone']
self.albedo = data['albedo']
self.mod_per_string = data['modules_per_string']
self.str_per_inv = data['strings_per_inverter']
try:
self.panel_model = retrieve_sam('CECMod')
self.panel_model = self.panel_model[data['module']]
except:
try:
self.panel_model = retrieve_sam('SandiaMod')
self.panel_model = self.panel_model[data['module']]
except:
return False, str('Module not found in the database!!')
try:
self.inverter_model = retrieve_sam('CECinverter')
self.inverter_model = self.inverter_model[data['inverter']]
except:
try:
self.inverter_model = retrieve_sam('SandiaInverter')
self.inverter_model = self.inverter_model[data['inverter']]
except:
return False, str('Inverter model not found in the database!!')
return True, str('Pass')
def sam_data():
data = {}
data['cecmod'] = pvsystem.retrieve_sam('cecmod')
data['sandiamod'] = pvsystem.retrieve_sam('sandiamod')
data['cecinverter'] = pvsystem.retrieve_sam('cecinverter')
data['adrinverter'] = pvsystem.retrieve_sam('adrinverter')
return data
def test_retrieve_sam_raise_no_parameters():
"""
Raise an exception if no parameters are provided to `retrieve_sam()`.
"""
with pytest.raises(ValueError) as error:
pvsystem.retrieve_sam()
assert 'A name or path must be provided!' == str(error.value)
def sam_data():
data = {}
data['cecmod'] = pvsystem.retrieve_sam('cecmod')
data['sandiamod'] = pvsystem.retrieve_sam('sandiamod')
data['cecinverter'] = pvsystem.retrieve_sam('cecinverter')
data['adrinverter'] = pvsystem.retrieve_sam('adrinverter')
return data
def download_forecasts(request):
modules_per_string = request.session['modules_per_string']
strings_per_inverter = request.session['strings_per_inverter']
module = request.session['module']
inverter = request.session['inverter']
latitude = request.session['latitude']
longitude = request.session['longitude']
tz = request.session['timezone']
sandia_modules = retrieve_sam('SandiaMod')
cec_inverters = retrieve_sam('SandiaInverter')
# Parametros de la granja solar
surface_tilt = 30
surface_azimuth = 180 # pvlib uses 0=North, 90=East, 180=South, 270=West convention
albedo = 0.2
# Rango de tiempo
start = pd.Timestamp(date.today(), tz=tz)
# Pronostico a 3 días en adelante
end = start + pd.Timedelta(days=3)
module = pd.Series(sandia_modules[module])
inverter = cec_inverters[inverter]
# model a big tracker for more fun
system = SingleAxisTracker(module_parameters=module,
inverter_parameters=inverter,
modules_per_string=modules_per_string,
strings_per_inverter=strings_per_inverter)
# fx is a common abbreviation for forecast
fx_model = GFS()
fx_data = fx_model.get_processed_data(latitude, longitude, start, end)
# use a ModelChain object to calculate modeling intermediates
mc = ModelChain(system, fx_model.location)
# extract relevant data for model chain
mc.run_model(fx_data.index, weather=fx_data)
AC = mc.ac.fillna(0)
response = HttpResponse(content_type='text/csv')
response[
'Content-Disposition'] = 'attachment; filename=AC_5days_forecasts.csv'
AC.to_csv(path_or_buf=response,
sep=';',
float_format='%.2f',
index=True,
decimal=",")
return response
def system_parameters():
"""System parameters for generating simulated power data."""
sandia_modules = pvsystem.retrieve_sam('SandiaMod')
sapm_inverters = pvsystem.retrieve_sam('cecinverter')
module = sandia_modules['Canadian_Solar_CS5P_220M___2009_']
inverter = sapm_inverters['ABB__MICRO_0_25_I_OUTD_US_208__208V_']
temperature_model_parameters = (
TEMPERATURE_MODEL_PARAMETERS['sapm']['open_rack_glass_glass'])
return {
'module_parameters': module,
'inverter_parameters': inverter,
'temperature_model_parameters': temperature_model_parameters
}
def test_retrieve_sam_cecinverter():
"""
Test the expected data is retrieved from the CEC inverter database. In
particular, check for a known inverter in the database and check for the
expected keys for that inverter.
"""
data = pvsystem.retrieve_sam('cecinverter')
keys = [
'Vac',
'Paco',
'Pdco',
'Vdco',
'Pso',
'C0',
'C1',
'C2',
'C3',
'Pnt',
'Vdcmax',
'Idcmax',
'Mppt_low',
'Mppt_high',
'CEC_Date',
'CEC_Type',
]
inverter = 'Yaskawa_Solectria_Solar__PVI_5300_208__208V_'
assert inverter in data
assert set(data[inverter].keys()) == set(keys)
def system_parameters():
"""PVSystem parameters for generating simulated power data."""
sapm_inverters = pvsystem.retrieve_sam('cecinverter')
inverter = sapm_inverters['ABB__MICRO_0_25_I_OUTD_US_208__208V_']
return {
'inverter_parameters': inverter,
}
def AC_out(p_dc):
## Get list of inverters
sapm_inverters = pvsystem.retrieve_sam('sandiainverter')
## Choose inverter (e.g. ABB__MICRO_0_25_I_OUTD_US_208_208V__CEC_2014)
sapm_inverter = sapm_inverters[
'ABB__MICRO_0_25_I_OUTD_US_208_208V__CEC_2014_']
## Run SAPM model
p_ac = pvsystem.snlinverter(p_dc.v_mp, p_dc.p_mp, sapm_inverter)
return (p_ac)
def array_parameters():
"""Array parameters for generating simulated power data."""
sandia_modules = pvsystem.retrieve_sam('SandiaMod')
module = sandia_modules['Canadian_Solar_CS5P_220M___2009_']
temperature_model_parameters = (
TEMPERATURE_MODEL_PARAMETERS['sapm']['open_rack_glass_glass'])
return {
'module_parameters': module,
'temperature_model_parameters': temperature_model_parameters
}
def get_cast(start_date, end_date):
from pvlib.pvsystem import PVSystem, retrieve_sam
from pvlib.temperature import TEMPERATURE_MODEL_PARAMETERS
from pvlib.tracking import SingleAxisTracker
from pvlib.modelchain import ModelChain
sandia_modules = retrieve_sam('sandiamod')
cec_inverters = retrieve_sam('cecinverter')
module = sandia_modules['SolarWorld_Sunmodule_250_Poly__2013_']
inverter = cec_inverters['ABB__TRIO_20_0_TL_OUTD_S1_US_480__480V_']
temperature_model_parameters = TEMPERATURE_MODEL_PARAMETERS['sapm'][
'open_rack_glass_glass']
# model a single axis tracker
system = SingleAxisTracker(
module_parameters=module,
inverter_parameters=inverter,
temperature_model_parameters=temperature_model_parameters,
modules_per_string=15,
strings_per_inverter=4)
# fx is a common abbreviation for forecast
fx_model = GFS()
forecast_mod = fx_model.get_processed_data(latitude, longitude, start_date,
end_date)
# use a ModelChain object to calculate modeling intermediates
mchain = ModelChain(system, fx_model.location)
# extract relevant data for model chain
mchain.run_model(forecast_mod)
acp = mchain.ac.fillna(0)
return acp
def DC_out(solpos, poa_irrad, aoi, pvtemps):
## First calculate airmass
airmass = atmosphere.relativeairmass(solpos['apparent_zenith'])
## Get list of modules
sandia_modules = pvsystem.retrieve_sam('SandiaMod')
## Choose model (e.g. CS5P_220M___2009)
sandia_module = sandia_modules.Canadian_Solar_CS5P_220M___2009_
## Run SAPM model
effective_irradiance = pvsystem.sapm_effective_irradiance(
poa_irrad.poa_direct, poa_irrad.poa_diffuse, airmass, aoi,
sandia_module)
p_dc = pvsystem.sapm(effective_irradiance, pvtemps['temp_cell'],
sandia_module)
return (p_dc)
def prepare_data():
print('preparing single diode data from clear sky ghi...')
# adjust values to change length of test data
times = pd.DatetimeIndex(start='20180101',
end='20190101',
freq='1min',
tz='America/Phoenix')
location = pvlib.location.Location(32.2, -110.9, altitude=710)
cs = location.get_clearsky(times)
poa_data = cs['ghi']
cec_modules = pvsystem.retrieve_sam('cecmod')
cec_module_params = cec_modules['Example_Module']
IL, I0, Rs, Rsh, nNsVth = pvsystem.calcparams_desoto(
poa_data,
temp_cell=25,
alpha_isc=cec_module_params['alpha_sc'],
module_parameters=cec_module_params,
EgRef=1.121,
dEgdT=-0.0002677)
return IL, I0, Rs, Rsh, nNsVth
def test_retrieve_sam_cecmod():
"""
Test the expected data is retrieved from the CEC module database. In
particular, check for a known module in the database and check for the
expected keys for that module.
"""
data = pvsystem.retrieve_sam('cecmod')
keys = [
'BIPV',
'Date',
'T_NOCT',
'A_c',
'N_s',
'I_sc_ref',
'V_oc_ref',
'I_mp_ref',
'V_mp_ref',
'alpha_sc',
'beta_oc',
'a_ref',
'I_L_ref',
'I_o_ref',
'R_s',
'R_sh_ref',
'Adjust',
'gamma_r',
'Version',
'STC',
'PTC',
'Technology',
'Bifacial',
'Length',
'Width',
]
module = 'Itek_Energy_LLC_iT_300_HE'
assert module in data
assert set(data[module].keys()) == set(keys)
def chooseCECModuleCoeffs(file='sam-library-cec-modules-2015-6-30.csv',
module_model='1Soltech_1STH_245_WH'):
'''
This function helps choose a module from CEC module database and its output can be used to generate matrices for a
large collection of modules.
Parameters
----------
file: String
A path to file that contains the module database. Could be the original or a (shorter) copy of that
module_model: String
A module name from the database
Returns
-------
module_params_stc: A dictionary of the STC parameters of the modules needed for the one diode model
Also see generateMatrix
'''
module_coeffs = pvsystem.retrieve_sam(name="CECMod", samfile=file)
try:
test_module = module_coeffs[module_model]
module_params_stc = test_module.to_dict()
except KeyError:
raise KeyError(
'The chosen model does not exist or is typed incorrectly')
return module_params_stc
import datetime as dt
import pandas as pd
import pvlib.atmosphere as atmosphere
import pvlib.irradiance as irradiance
import pvlib.pvsystem as pvsystem
import pvlib.solarposition as solarposition
from pvlib.location import Location
_sandia_modules = pvsystem.retrieve_sam('SandiaMod')
_cec_inverters = pvsystem.retrieve_sam('cecinverter')
_sandia_module = _sandia_modules['Silevo_Triex_U300_Black__2014_']
_cec_inverter = _cec_inverters['ABB__MICRO_0_25_I_OUTD_US_208_208V__CEC_2014_']
_munich_location = Location(48.3, 11.8, 'CET', 447, 'Munich')
_module_count = 20
def get_perfect_voltage_for_a_day(start, freq):
"""This method is used to build a pandas serie with voltage values.
This serie has DateTime index and contains a value for every "freq"
seconds during 24 hours starting from "start" date.
There are several assumptions:
1. Location is Munich
2. A battery is pointing to the south, amount of blocks is 20
3. Sandia Module database is used
4. pvlib library is heavily used
:param start: datetime. First timestamp in result series
:param freq: str. How often voltage should be sampled
:return: voltage : Series
"""
"""
testing single-diode methods using JW Bishop 1988
"""
import numpy as np
from pvlib import pvsystem
from pvlib.singlediode import bishop88, estimate_voc, VOLTAGE_BUILTIN
import pytest
from conftest import requires_scipy
POA = 888
TCELL = 55
CECMOD = pvsystem.retrieve_sam('cecmod')
@requires_scipy
def test_newton_spr_e20_327():
"""test pvsystem.singlediode with Newton method on SPR-E20-327"""
spr_e20_327 = CECMOD.SunPower_SPR_E20_327
x = pvsystem.calcparams_desoto(
effective_irradiance=POA, temp_cell=TCELL,
alpha_sc=spr_e20_327.alpha_sc, a_ref=spr_e20_327.a_ref,
I_L_ref=spr_e20_327.I_L_ref, I_o_ref=spr_e20_327.I_o_ref,
R_sh_ref=spr_e20_327.R_sh_ref, R_s=spr_e20_327.R_s,
EgRef=1.121, dEgdT=-0.0002677)
il, io, rs, rsh, nnsvt = x
pvs = pvsystem.singlediode(*x, method='lambertw')
out = pvsystem.singlediode(*x, method='newton')
isc, voc, imp, vmp, pmp, ix, ixx = out.values()
assert np.isclose(pvs['i_sc'], isc)
assert np.isclose(pvs['v_oc'], voc)
def __init__(self, panel=None, forecast_length=7, forecast_model=None):
self.forecast_length = forecast_length
if panel == None:
self.panel = Panel()
else:
self.panel = panel
if forecast_model == None:
self.fm = GFS()
else:
self.fm = forecast_model
self.start = pd.Timestamp(datetime.date.today(),
tz=self.panel.tz) # today's date
self.end = self.start + pd.Timedelta(
days=forecast_length) # days from today
print(
"getting processed data with lat: %s, lng: %s, start:%s, end:%s" %
(self.panel.latitude, self.panel.longitude, self.start, self.end))
# get forecast data
forecast_data = self.fm.get_processed_data(self.panel.latitude,
self.panel.longitude,
self.start, self.end)
ghi = forecast_data['ghi']
# get solar position
time = forecast_data.index
a_point = self.fm.location
solpos = a_point.get_solarposition(time)
# get PV(photovoltaic device) modules
sandia_modules = pvsystem.retrieve_sam('SandiaMod')
sandia_module = sandia_modules.Canadian_Solar_CS5P_220M___2009_
dni_extra = irradiance.get_extra_radiation(
self.fm.time) # extra terrestrial radiation
airmass = atmosphere.get_relative_airmass(solpos['apparent_zenith'])
# POA: Plane Of Array: an image sensing device consisting of an array
# (typically rectangular) of light-sensing pixels at the focal plane of a lens.
# https://en.wikipedia.org/wiki/Staring_array
# Diffuse sky radiation is solar radiation reaching the Earth's surface after
# having been scattered from the direct solar beam by molecules or particulates
# in the atmosphere.
# https://en.wikipedia.org/wiki/Diffuse_sky_radiation
poa_sky_diffuse = irradiance.haydavies(self.panel.surface_tilt,
self.panel.surface_azimuth,
forecast_data['dhi'],
forecast_data['dni'], dni_extra,
solpos['apparent_zenith'],
solpos['azimuth'])
# Diffuse reflection is the reflection of light or other waves or particles
# from a surface such that a ray incident on the surface is scattered at many
# angles rather than at just one angle as in the case of specular reflection.
poa_ground_diffuse = irradiance.get_ground_diffuse(
self.panel.surface_tilt, ghi, albedo=self.panel.albedo)
# AOI: Angle Of Incidence
aoi = irradiance.aoi(self.panel.surface_tilt,
self.panel.surface_azimuth,
solpos['apparent_zenith'], solpos['azimuth'])
# irradiance is the radiant flux (power) received by a surface per unit area
# https://en.wikipedia.org/wiki/Irradiance
poa_irrad = irradiance.poa_components(aoi, forecast_data['dni'],
poa_sky_diffuse,
poa_ground_diffuse)
temperature = forecast_data['temp_air']
wnd_spd = forecast_data['wind_speed']
# pvtemps: pv temperature
pvtemps = pvsystem.sapm_celltemp(poa_irrad['poa_global'], wnd_spd,
temperature)
# irradiance actually used by PV
effective_irradiance = pvsystem.sapm_effective_irradiance(
poa_irrad.poa_direct, poa_irrad.poa_diffuse, airmass, aoi,
sandia_module)
# SAPM: Sandia PV Array Performance Model
# https://pvpmc.sandia.gov/modeling-steps/2-dc-module-iv/point-value-models/sandia-pv-array-performance-model/
self.sapm_out = pvsystem.sapm(effective_irradiance,
pvtemps['temp_cell'], sandia_module)
sapm_inverters = pvsystem.retrieve_sam('sandiainverter')
sapm_inverter = sapm_inverters[
'ABB__MICRO_0_25_I_OUTD_US_208_208V__CEC_2014_']
self.ac_power = pvsystem.snlinverter(self.sapm_out.v_mp,
self.sapm_out.p_mp, sapm_inverter)
def test_retrieve_sam_network():
sam_data["cecmod"] = pvsystem.retrieve_sam("cecmod")
sam_data["sandiamod"] = pvsystem.retrieve_sam("sandiamod")
sam_data["cecinverter"] = pvsystem.retrieve_sam("cecinverter")
tz = 'Etc/GMT+5'
times = pd.date_range('2021-06-21', '2021-6-22', freq='1T', tz=tz)
# create site system characteristics
axis_tilt = 0
axis_azimuth = 180
gcr = 0.35
max_angle = 60
pvrow_height = 3
pvrow_width = 4
albedo = 0.2
bifaciality = 0.75
# load temperature parameters and module/inverter specifications
temp_model_parameters = PARAMS['sapm']['open_rack_glass_glass']
cec_modules = pvsystem.retrieve_sam('CECMod')
cec_module = cec_modules['Trina_Solar_TSM_300DEG5C_07_II_']
cec_inverters = pvsystem.retrieve_sam('cecinverter')
cec_inverter = cec_inverters['ABB__MICRO_0_25_I_OUTD_US_208__208V_']
# create a location for site, and get solar position and clearsky data
site_location = location.Location(lat, lon, tz=tz, name='Greensboro, NC')
solar_position = site_location.get_solarposition(times)
cs = site_location.get_clearsky(times)
# load solar position and tracker orientation for use in pvsystem object
sat_mount = pvsystem.SingleAxisTrackerMount(axis_tilt=axis_tilt,
axis_azimuth=axis_azimuth,
max_angle=max_angle,
backtrack=True,
gcr=gcr)
"""
Retrieve standard sets of parameters
"""
from typing import List
from fastapi import APIRouter, HTTPException, Path
from pvlib.pvsystem import retrieve_sam # type: ignore
from .. import models
router = APIRouter()
sandia_inverter_params = (
retrieve_sam("CECInverter").loc[models.SandiaInverterParameters.schema()
["properties"].keys()].astype(float))
# Database does not provide the fields 'EgRef', 'dEgdT'
# which have defaults in the model.
cec_keys = [
"alpha_sc",
"a_ref",
"I_L_ref",
"I_o_ref",
"R_sh_ref",
"R_s",
"gamma_r",
"Adjust",
"N_s",
]
cec_module_params = (retrieve_sam("CECMod").loc[cec_keys].astype(float).rename(
index={"N_s": "cells_in_series"}))
def __init__(self):
self.inverters = retrieve_sam(name='SandiaInverter')
self.inverter = None
def test_retrieve_sam_network():
sam_data['cecmod'] = pvsystem.retrieve_sam('cecmod')
sam_data['sandiamod'] = pvsystem.retrieve_sam('sandiamod')
sam_data['sandiainverter'] = pvsystem.retrieve_sam('sandiainverter')
def get_inv_list():
inv_list = list([])
avlb_invs = ['CECInverter', 'SandiaInverter', 'ADRInverter']
for invs in avlb_invs:
inv_list = inv_list + retrieve_sam(invs).columns.values.tolist()
return inv_list
def run_sim_on_tracker(tracker, tmy_data, sand_point, albedo, n_epochs=10, n_steps=500,):
'''
Returns power, angle history
'''
# print("running {} \n".format(tracker.name))
sandia_modules = retrieve_sam('sandiamod')
cec_inverters = retrieve_sam('cecinverter')
module = sandia_modules['Canadian_Solar_CS5P_220M___2009_']
cap = float(module['Isco']*module['Voco']/(10**6)) #convert to MW
#TODO: save previous state/reward
for e in range(n_epochs):
#returning results from most recent epoch
#TODO: avoid successive concats
total = pd.DataFrame()
angles = np.zeros((n_steps,))
energy_consumed_move = np.zeros((n_steps,))
temps = pd.DataFrame()
radiation_rows = []
ac_all = np.zeros((n_steps,))
surface_azimuth = tracker.get_azimuth()
old_tilt = 0
prev_reward = 0
for i in range(n_steps):
print(i)
current_step_data = tmy_data[tmy_data.index[i]:tmy_data.index[i]]
solpos = pvlib.solarposition.get_solarposition(current_step_data.index, sand_point.latitude, sand_point.longitude)
state = tmy_step_to_OOMDP(current_step_data, tracker, solpos, old_tilt, albedo)
surface_tilt = float(tracker.get_angle(state, prev_reward))
angles[i] = surface_tilt
sapm_out, ac, rad_timestep, pvtemps = calculate_energy(surface_tilt, surface_azimuth, albedo, current_step_data['Wspd'], current_step_data['DryBulb'], current_step_data.index, solpos, current_step_data['DHI'], current_step_data['DNI'], current_step_data['GHI'], tracker.name)
radiation_rows.append(rad_timestep)
eng_consumed_move = energy_motion(old_tilt, surface_tilt, cap)
old_tilt = surface_tilt
prev_reward = float(ac) - eng_consumed_move*1000
energy_consumed_move[i] = eng_consumed_move
ac_all[i] = ac - eng_consumed_move*1000 #kwh to wh
temps = temps.append(pvtemps)
#convert angles to df
angles_series = pd.Series(angles, index=tmy_data.index[0:n_steps])
energy_consumed = pd.Series(energy_consumed_move, index=tmy_data.index[0:n_steps])
radiation = pd.concat(radiation_rows, axis=0)
#rename
temps.rename(columns={'temp_cell': 'cell temp {}'.format(tracker.name)}, inplace=True)
angles_df = pd.DataFrame(angles_series, columns=['angle {}'.format(tracker.name)])
energy_consumed_df = pd.DataFrame(energy_consumed, columns=['energy consumed {}'.format(tracker.name)])
ac_total = pd.Series(ac_all, index=tmy_data.index[0:n_steps])
sum = ac_total.sum()
ac_df = pd.DataFrame(ac_total, columns=['ac_step'])
ac_df['p cumulative {}'.format(tracker.name)] = ac_df.cumsum()
return ac_df, angles_df, temps, energy_consumed_df, radiation, sum
def simulate_power_by_station(station_index, surface_tilt, surface_azimuth,
pv_module, tcell_model_parameters, ghi, tamb,
wspd, albedo, days, lead_times, air_mass,
dni_extra, zenith, apparent_zenith, azimuth):
"""
This is the worker function for simulating power at a specified location. This function should be used inside
of `simulate_power` and direct usage is discouraged.
:param station_index: A station index
:param ghi: See `simulate_power`
:param tamb: See `simulate_power`
:param wspd: See `simulate_power`
:param albedo: See `simulate_power`
:param days: See `simulate_power`
:param lead_times: See `simulate_power`
:param air_mass: See `simulate_power`
:param dni_extra: See `simulate_power`
:param zenith: See `simulate_power`
:param apparent_zenith: See `simulate_power`
:param azimuth: See `simulate_power`
:param surface_tilt: See `simulate_power`
:param surface_azimuth: See `simulate_power`
:param pv_module: A PV module name
:param tcell_model_parameters: A cell module name
:return: A list with power, cell temperature, and the effective irradiance
"""
# Sanity check
assert 0 <= station_index < ghi.shape[3], 'Invalid station index'
# Determine the dimensions
num_analogs = ghi.shape[0]
num_lead_times = ghi.shape[1]
num_days = ghi.shape[2]
# Initialization
p_mp = np.zeros((num_analogs, num_lead_times, num_days))
tcell = np.zeros((num_analogs, num_lead_times, num_days))
effective_irradiance = np.zeros((num_analogs, num_lead_times, num_days))
pv_module = pvsystem.retrieve_sam("SandiaMod")[pv_module]
tcell_model_parameters = temperature.TEMPERATURE_MODEL_PARAMETERS["sapm"][
tcell_model_parameters]
for day_index in range(num_days):
for lead_time_index in range(num_lead_times):
# Determine the current time
current_posix = days[day_index] + lead_times[lead_time_index]
current_time = pd.Timestamp(current_posix, tz="UTC", unit='s')
for analog_index in range(num_analogs):
ghi_ = ghi[analog_index, lead_time_index, day_index,
station_index]
if ghi_ == 0:
continue
albedo_ = albedo[analog_index, lead_time_index, day_index,
station_index]
wspd_ = wspd[analog_index, lead_time_index, day_index,
station_index]
tamb_ = tamb[analog_index, lead_time_index, day_index,
station_index]
air_mass_ = air_mass[lead_time_index, day_index, station_index]
dni_extra_ = dni_extra[lead_time_index, day_index,
station_index]
zenith_ = zenith[lead_time_index, day_index, station_index]
apparent_zenith_ = apparent_zenith[lead_time_index, day_index,
station_index]
azimuth_ = azimuth[lead_time_index, day_index, station_index]
##########################################################################################
# #
# Core procedures of simulating power at one location #
# #
##########################################################################################
# Decompose DNI from GHI
dni_dict = irradiance.disc(ghi_, zenith_, current_time)
# Calculate POA sky diffuse
poa_sky_diffuse = irradiance.haydavies(
surface_tilt, surface_azimuth, ghi_, dni_dict["dni"],
dni_extra_, apparent_zenith_, azimuth_)
# Calculate POA ground diffuse
poa_ground_diffuse = irradiance.get_ground_diffuse(
surface_tilt, ghi_, albedo_)
# Calculate angle of incidence
aoi = irradiance.aoi(surface_tilt, surface_azimuth,
apparent_zenith_, azimuth_)
# Calculate POA total
poa_irradiance = irradiance.poa_components(
aoi, dni_dict["dni"], poa_sky_diffuse, poa_ground_diffuse)
# Calculate cell temperature
tcell[analog_index, lead_time_index,
day_index] = pvsystem.temperature.sapm_cell(
poa_irradiance['poa_global'], tamb_, wspd_,
tcell_model_parameters['a'],
tcell_model_parameters['b'],
tcell_model_parameters["deltaT"])
# Calculate effective irradiance
effective_irradiance[
analog_index, lead_time_index,
day_index] = pvsystem.sapm_effective_irradiance(
poa_irradiance['poa_direct'],
poa_irradiance['poa_diffuse'], air_mass_, aoi,
pv_module)
# Calculate power
sapm_out = pvsystem.sapm(
effective_irradiance[analog_index, lead_time_index,
day_index],
tcell[analog_index, lead_time_index, day_index], pv_module)
# Save output to numpy
p_mp[analog_index, lead_time_index,
day_index] = sapm_out["p_mp"]
return [p_mp, tcell, effective_irradiance]
import os
import numpy as np
import pandas as pd
from pvlib import pvsystem
from pvlib.singlediode_methods import bishop88, estimate_voc
logging.basicConfig()
LOGGER = logging.getLogger(__name__)
LOGGER.setLevel(logging.DEBUG)
TEST_DATA = 'bishop88_numerical_precision.csv'
TEST_PATH = os.path.dirname(os.path.abspath(__file__))
PVLIB_PATH = os.path.dirname(TEST_PATH)
DATA_PATH = os.path.join(PVLIB_PATH, 'data', TEST_DATA)
POA = 888
TCELL = 55
CECMOD = pvsystem.retrieve_sam('cecmod')
# get module from cecmod and apply temp/irrad desoto corrections
SPR_E20_327 = CECMOD.SunPower_SPR_E20_327
ARGS = pvsystem.calcparams_desoto(effective_irradiance=POA,
temp_cell=TCELL,
alpha_sc=SPR_E20_327.alpha_sc,
a_ref=SPR_E20_327.a_ref,
I_L_ref=SPR_E20_327.I_L_ref,
I_o_ref=SPR_E20_327.I_o_ref,
R_sh_ref=SPR_E20_327.R_sh_ref,
R_s=SPR_E20_327.R_s,
EgRef=1.121,
dEgdT=-0.0002677)
IL, I0, RS, RSH, NNSVTH = ARGS
IVCURVE_NPTS = 100
def get_panel_list():
panel_list = list([])
avlb_mods = ['SandiaMod', 'CECMod']
for mods in avlb_mods:
panel_list = panel_list + retrieve_sam(mods).columns.values.tolist()
return panel_list
#running PVLib simulation in steps
from pvlib.pvsystem import PVSystem, retrieve_sam
from pvlib.tracking import SingleAxisTracker
from pvlib.modelchain import ModelChain
from pvlib.forecast import GFS, NAM, NDFD, HRRR, RAP
import pandas as pd
import datetime
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
#set up system
sandia_modules = retrieve_sam('sandiamod')
cec_inverters = retrieve_sam('cecinverter')
module = sandia_modules['Canadian_Solar_CS5P_220M___2009_']
inverter = cec_inverters['SMA_America__SC630CP_US_315V__CEC_2012_']
system = PVSystem(surface_tilt=20,
surface_azimuth=200,
module_parameters=module,
inverter_parameters=inverter,
modules_per_string=15,
strings_per_inverter=300)
latitude, longitude, tz = 32.2, -110.9, 'US/Arizona'
start = pd.Timestamp(datetime.date.today() - pd.Timedelta(days=20), tz=tz)
end = start + pd.Timedelta(days=7)
# model = GFS()
def __init__(self):
self.modules = retrieve_sam(name='SandiaMod')
self.module = None
def pvlib_location(request):
if request.method == 'POST':
formulario = location_pv(request.POST)
if formulario.is_valid():
params = formulario.cleaned_data
#Creación del diccionario para las caracteristicas del modulo PV utilizado en Cutonalá
#Canadian_Solar_CS6X_320P___2016_ = {"Vintage": 2016, "Area":1.91 , "Material": "Poly-crystalline", "Cells_in_Series": 72, "Parallel_Strings": 1,
# "Isco":9.26, "Voco":45.3, "Impo":8.69, "Vmpo":36.8, "Aisc":0.000397, "Aimp":0.000181, "C0":1.01284, "C1":-0.0128398, "Bvoco":-0.21696,
# "Mbvoc":0, "Bvmpo":-0.235488, "Mbvmp":0, "N":1.4032, "C2":0.279317, "C3":-7.24463, "A0":0.928385, "A1":0.068093, "A2":-0.0157738, "A3":0.0016605999999999997,
# "A4":-6.929999999999999e-05, "B0":1, "B1":-0.002438, "B2":0.0003103, "B3":-1.246e-05, "B4":2.1100000000000002e-07, "B5":-1.36e-09, "DTC":3.0, "FD":1, "A":-3.4064099999999997, "B":-0.0842075, "C4":0.9964459999999999,
# "C5":0.003554, "IXO":4.97599, "IXXO":3.18803, "C6":1.15535, "C7":-0.155353, "Notes":"caracteristicas del modulo instalado en CUT"}
#module = pd.Series(Canadian_Solar_CS6X_320P___2016_, name="Canadian_Solar_CS6X_320P___2016_")
#Modulo desde la librería de Sandia labs
#cec_inverters = retrieve_sam('cecinverter')
#inverter = cec_inverters['SMA_America__SC630CP_US_315V__CEC_2012_']
modules_per_string = params['modules_per_string']
strings_per_inverter = params['strings_per_inverter']
module = params['module']
inverter = params['inverter']
request.session['modules_per_string'] = modules_per_string
request.session['strings_per_inverter'] = strings_per_inverter
request.session['module'] = module
request.session['inverter'] = inverter
#Calcular la potencia CD, aqui debemos tener el diccionario para el tipo de Modulo en CUTonalá
sandia_modules = retrieve_sam('SandiaMod')
#### Modulo desde la librería de Sandia labs
cec_inverters = retrieve_sam('cecinverter')
# Lugar Tonalá
latitude, longitude = params['latitude'], params['longitude']
request.session['latitude'] = latitude
request.session['longitude'] = longitude
tz = tzwhere.tzwhere().tzNameAt(latitude, longitude)
request.session['timezone'] = tz
# Parametros de la granja solar
surface_tilt = 30
surface_azimuth = 180 # pvlib uses 0=North, 90=East, 180=South, 270=West convention
albedo = 0.2
# Rango de tiempo
start = pd.Timestamp(date.today(), tz=tz)
# Pronostico a 3 días en adelante
end = start + pd.Timedelta(days=5)
module = pd.Series(sandia_modules[module])
inverter = cec_inverters[inverter]
# model a big tracker for more fun
system = SingleAxisTracker(
module_parameters=module,
inverter_parameters=inverter,
modules_per_string=modules_per_string,
strings_per_inverter=strings_per_inverter)
# fx is a common abbreviation for forecast
fx_model = GFS()
fx_data = fx_model.get_processed_data(latitude, longitude, start,
end)
# use a ModelChain object to calculate modeling intermediates
mc = ModelChain(system, fx_model.location)
# extract relevant data for model chain
mc.run_model(fx_data.index, weather=fx_data)
#mc.run_model(fx_data)
AC = mc.ac.fillna(0)
#AC = pd.DataFrame(AC)
#labeles = AC.keys()
#valores = AC.values()
#data = {
# "Dates": labeles,
# "Power (W)": valores,
#}
#here we print the data the correct thing would be to use them to graph them
#print(AC.head())
#return render(request, 'chart.html', {'forma': formulario})
template = 'chart.html'
#columns = [{'field': 'date', 'title': 'Date'}, {'field': 'value', 'title': 'Value'}]
#Write the DataFrame to JSON (as easy as can be)
#json = AC.to_json(orient='records') # output just the records (no fieldnames) as a collection of tuples
#Proceed to create your context object containing the columns and the data
#context = {
# 'data': json,
# 'columns': columns
# }
#And render it!
#return render(request, template, context)
AC = AC.reset_index()
AC.rename(columns={
'index': 'Time',
0: 'AC Power (W)'
},
inplace=True)
figure = px.line(AC, x='Time', y='AC Power (W)')
#figure.update_layout(title="Your 5 days AC power output forecast (W)", font=dict(size=20, color='black'))
#figure.update_xaxes(title_font=dict(size=16, color='black'))
#figure.update_yaxes(title_font=dict(size=16, color='black'))
figure.update_xaxes(dtick=10800000)
plot_div = plot(figure,
image_height='100%',
output_type='div',
include_plotlyjs=False)
context = {'linechart': plot_div}
return render(request, template, context)
else:
formulario = location_pv()
return render(request, 'forecast_data.html', {'form': formulario})
import dash_core_components as dcc
import dash_html_components as html
import dash_bootstrap_components as dbc
from pvlib import pvsystem
all_modules = pvsystem.retrieve_sam(name='SandiaMod')
module_names = list(all_modules.columns)
layout = html.Div([
dbc.Nav(
[
dbc.NavItem(dbc.NavLink('Home Page', href='/', style= {'color': 'white'}, external_link=True)),
dbc.NavItem(dbc.NavLink('Load Configuration', href='/dashapp_profile/', style= {'color': 'white'}, external_link=True)),
dbc.NavItem(dbc.NavLink('Simulation', active=True, href='/dashapp_simulation/', style= {'color': 'white'}, external_link=True))
],
className= 'navbar navbar-expand-lg navbar-dark bg-dark fixed-top'
),
html.Div([
html.Div([
html.H5('Select Graph'),
dcc.Dropdown(
id='select_Graph',
options=[
{'label': 'Costs', 'value': 'cost_graph'},
{'label': 'Energy Overview', 'value': 'power_graph'}
], value= 'cost_graph')
], className='col-3'),
], className='row', style={'paddingTop': '60px'}),
def retrieve_sam_network():
sam_data['cecmod'] = pvsystem.retrieve_sam('cecmod')
sam_data['sandiamod'] = pvsystem.retrieve_sam('sandiamod')
sam_data['cecinverter'] = pvsystem.retrieve_sam('cecinverter')
# Define forecast model
fm = GFS()
#fm = NAM()
#fm = NDFD()
#fm = RAP()
#fm = HRRR()
# Retrieve data
forecast_data = fm.get_processed_data(latitude, longitude, start, end)
ghi = forecast_data['ghi']
sandia_modules = pvsystem.retrieve_sam('SandiaMod')
sandia_module = sandia_modules.Canadian_Solar_CS5P_220M___2009_
# retrieve time and location parameters
time = forecast_data.index
a_point = fm.location
solpos = a_point.get_solarposition(time)
dni_extra = irradiance.get_extra_radiation(fm.time)
airmass = atmosphere.get_relative_airmass(solpos['apparent_zenith'])
poa_sky_diffuse = irradiance.haydavies(surface_tilt, surface_azimuth,
forecast_data['dhi'], forecast_data['dni'], dni_extra,
solpos['apparent_zenith'], solpos['azimuth'])
