Files
brewpi/components/plant/pot.py
T
jensandClaude Sonnet 4.6 17ca79da1a Simplify Pot: drop gain/theta params, seed initial temp from ambient
[Pot] - removed the gain (efficiency) factor and the separate
"theta" initial-temperature param; Pot now starts at theta_amb and
set_power()/get_power() operate on p_in directly. Added
set_ambient_temperature() for live ambient updates. Dropped the
now-unused "theta"/"gain" keys from Model/Plant in config.json.sim
and config.json.templ (also fixes a JSON syntax error in
config.json.templ: trailing commas left over after removing "gain"
made Model/Plant fail to parse).
[Sensor] - fix missing space in TempSensorSim.temperature()'s
offset/variance expression (cosmetic, no behavior change).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-19 18:32:28 +02:00

71 lines
1.4 KiB
Python

from components.aplant import APlant
from components.plant import delay
class Pot(APlant):
def __init__(self, dt, params, theta_amb=20):
APlant.__init__(self)
self.dt = dt
self.e = 0
self.x = 0
self.p_pot = 0
# Plant specific thermal capacity [W*s/(kg*K)]
self.C = params['C']
# Plant mass [kg]
self.M = params['M']
# Plant energy loss coefficient [W/(kg*K)]
# Negative input power as a function of plant mass and temperature difference T_plant and T_ambient
# P_loss = L * Mass * (T_plant - T_ambient)
self.L = params['L']
# Energy transport propagation delay
self.Td = params['Td']
# Plant temperature [°C]
self.temp = theta_amb
# Ambient temperature [°C]
self.theta_amb = theta_amb
# Set power [W]
self.p_in = 0
# Plant delay [s]
self.delay = delay.Delay(dt, self.Td, 0)
def initial(self, temp):
self.temp = temp
def activate(self, enable):
pass
def process(self):
self.delay.put(self.p_in)
p_loss = self.L * self.M * (self.temp - self.theta_amb)
self.p_pot = self.delay.get() - p_loss
self.temp = min(100, self.temp + self.p_pot/(self.M * self.C) * self.dt)
def is_activated(self):
return True
def set_ambient_temperature(self, theta_amb):
self.theta_amb = theta_amb
def set_power(self, power):
self.p_in = power
def get_power(self):
return round(self.p_in, 1)
def get_temperature(self):
return self.temp
def get_p_pot(self):
return self.p_pot