def profile_start(self):
if self.sas is not None:
profile_name = self.profile_name
if profile_name != 'None' and profile_name is not None:
self.sas.profile_start()
self.ts.log('Starting PV profile')
else:
raise pvsim.PVSimError('Simulation channel not specified')
else:
raise pvsim.PVSimError('PV Sim not initialized')
def power_on(self):
if self.tsas is not None:
c = self.channel
if c is not None:
channel = self.tsas.channels[c]
# turn on output if off
if not channel.output_is_on():
channel.output_set_on()
self.ts.log('TerraSAS channel %d turned on' % c)
else:
raise pvsim.PVSimError('Simulation channel not specified')
else:
raise pvsim.PVSimError('Not initialized')
def irradiance_set(self, irradiance=1000):
if self.tsas is not None:
c = self.channel
if c is not None:
channel = self.tsas.channels[c]
channel.irradiance_set(irradiance=irradiance)
self.ts.log(
'TerraSAS irradiance changed to %0.2f on channel %d.' %
(irradiance, c))
else:
raise pvsim.PVSimError(
'Simulation irradiance not specified because there is no channel specified.'
)
else:
raise pvsim.PVSimError('Irradiance was not changed.')
def irradiance_set(self, irradiance=1000):
if self.sas is not None:
self.irradiance = irradiance
self.sas.irradiance_set(self.irradiance, self.voc, self.isc, self.pmp, self.vmp)
self.ts.log('chroma irradiance changed to %0.2f' % (irradiance))
else:
raise pvsim.PVSimError('Irradiance was not changed.')
def power_off(self): #wanbin
if self.sas is not None:
self.sas.power_off()
#self.ts.log('chroma channel %d turned on' % c)
self.ts.log('chroma channel turned off')
else:
raise pvsim.PVSimError('Not initialized')
def power_off(self):
if self.tsas is not None:
for c in self.channel:
channel = self.tsas.channels[c]
# turn off output if on
if channel.output_is_on():
channel.output_set_off()
self.ts.log('TerraSAS channel %d turned off' % c)
else:
raise pvsim.PVSimError('Not initialized')
def profile_start(self):
if self.tsas is not None:
profile_name = self.profile_name
if profile_name != 'None' and profile_name is not None:
for c in self.channel:
channel = self.tsas.channels[c]
channel.profile_start()
self.ts.log('Starting PV profile')
else:
raise pvsim.PVSimError('PV Sim not initialized')
def irradiance_set(self, irradiance=1000):
if self.tsas is not None:
# spread across active channels
count = len(self.channel)
if count > 1:
irradiance = irradiance / count
for c in self.channel:
if c is not None:
channel = self.tsas.channels[c]
channel.irradiance_set(irradiance=irradiance)
self.ts.log(
'TerraSAS irradiance changed to %0.2f on channel %d.' %
(irradiance, c))
else:
raise pvsim.PVSimError(
'Simulation irradiance not specified because there is no channel specified.'
)
else:
raise pvsim.PVSimError('Irradiance was not changed.')
def profile_load(self, profile_name):
if profile_name != 'None' and profile_name is not None:
self.ts.log('Loading irradiance profile %s' % profile_name)
self.profile_name = profile_name
profiles = self.sas.profiles_get()
if profile_name not in profiles:
self.sas.profile(profile_name)
if self.sas is not None:
c = self.channel
if c is not None:
channel = self.sas.channels[c]
channel.profile_set(profile_name)
self.ts.log('chroma Profile is configured.')
else:
raise pvsim.PVSimError('chroma Profile could not be configured.')
else:
raise pvsim.PVSimError('chroma Profile was not changed.')
else:
self.ts.log('No irradiance profile loaded')
def power_set(self, power):
if self.sas is not None:
# spread across active channels
count = 1
if count > 1:
power = power / count
if power > self.pmp:
self.ts.log_warning(
'Requested power > Pmp so irradiance will be > 1000 W/m^2)'
)
# convert to irradiance for now
irradiance = (power * 1000) / self.pmp
self.irradiance_set(irradiance=irradiance)
# self.ts.log('TerraSAS power output changed to %0.2f on channel %d.' % (power, c))
else:
raise pvsim.PVSimError('Power was not changed.')
def close(self):
"""
Close any open communications resources associated with the grid
simulator.
"""
if self.comm == 'Serial':
raise NotImplementedError('The driver for serial connection (RS232/RS485) is not implemented yet')
elif self.comm == 'GPIB':
raise NotImplementedError('The driver for plain GPIB is not implemented yet.')
elif self.comm == 'VISA':
try:
if self.rm is not None:
if self.conn is not None:
self.conn.close()
self.rm.close()
time.sleep(1)
except Exception, e:
raise pvsim.PVSimError(str(e))
def __init__(self, ts, group_name):
pvsim.PVSim.__init__(self, ts, group_name)
self.ts = ts
self.tsas = None
try:
self.ipaddr = self._param_value('ipaddr')
self.pmp = self._param_value('pmp')
self.vmp = self._param_value('vmp')
self.channel = []
self.irr_start = self._param_value('irr_start')
chans = str(self._param_value('channel')).split(',')
for c in chans:
try:
self.channel.append(int(c))
except ValueError:
raise pvsim.PVSimError('Invalid channel number: %s' % c)
self.profile_name = None
self.ts.log(
'Initializing PV Simulator with Pmp = %d and Vmp = %d.' %
(self.pmp, self.vmp))
self.tsas = terrasas.TerraSAS(ipaddr=self.ipaddr)
self.tsas.scan()
for c in self.channel:
channel = self.tsas.channels[c]
if channel.profile_is_active():
channel.profile_abort()
# re-add EN50530 curve with active parameters
self.tsas.curve_en50530(pmp=self.pmp, vmp=self.vmp)
channel.curve_set(terrasas.EN_50530_CURVE)
except Exception:
if self.tsas is not None:
self.tsas.close()
raise
def irradiance_set(self, irradiance=1000):
if self.ts.confirm('Please change the irradiance to %0.1f W/m^2.' %
irradiance) is False:
raise pvsim.PVSimError('Aborted PV simulation')
def power_on(self):
if self.sas is not None:
self.sas.power_on()
self.ts.log('chroma channel %d turned on' % c)
else:
raise pvsim.PVSimError('Not initialized')
def power_set(self, power):
if self.ts.confirm(
'Please change the power to %0.1f%% power.' % power) is False:
raise pvsim.PVSimError('Aborted PV simulation')
def power_on(self):
if self.ts.confirm(
'Please turn on PV simulator to give EUT DC power.') is False:
raise pvsim.PVSimError('Aborted PV simulation')
def profile_start(self):
if self.ts.confirm('Please run the PV simulator profile.') is False:
raise pvsim.PVSimError('Aborted PV simulation')
