def closedloop_accumul( kp, ki ):
def setpoint( t ):
global accumul_goal
if t > 1000:
accumul_goal += 125
else:
accumul_goal += 100
return accumul_goal
k = 1.0/20.0
p = AdPublisher( 100, 2 )
c = fb.PidController( k*kp, k*ki )
fb.closed_loop( setpoint, c, p, returnfilter=fb.Integrator() )
def closedloop_jumps():
def demand(t):
if t < 3000:
return int(random.gauss(0, 15))
elif t < 5000:
return int(random.gauss(0, 35))
else:
return int(random.gauss(100, 15))
def setpoint(t):
return 0.7
p = SmoothedCache(0, demand, 100)
c = fb.PidController(270, 7.5) # Ziegler-Nichols - closedloop1
# c = fb.PidController( 100, 4.3 ) # Cohen-Coon - 2
# c = fb.PidController( 80, 2.0 ) # AMIGO - 3
# c = fb.PidController( 150, 2 ) # 4
fb.closed_loop(setpoint, c, p, 10000)
def closedloop1():
# Closed loop, setpoint 0.6-0.8, PID Controller
def loadqueue():
global global_time
global_time += 1
if global_time > 2100:
return random.gauss(1200, 5)
return random.gauss(1000, 5)
def setpoint(t):
if t > 2000:
return 0.6
else:
return 0.8
p = ServerPool(8, consume_queue, loadqueue)
c = fb.PidController(1, 5)
fb.closed_loop(setpoint, c, p, 10000)