temp_controller_smith.py still relied on Kalman filtering and Pot's old
get_temperature_intermediate(), both removed by the recent Pot/Kalman
simplification. Rebuild it using two Pot model copies (zero-delay and
delayed) and the same backward-difference heat rate as temp_controller.py,
combined into the classic Smith correction:
theta_ist = theta_model_fast + (theta_plant - theta_model_delay).
Also fix set_model_power() never being called, so the internal model
actually receives the controller's power output, and fill in
demo_temp_controller_smith.py to exercise it end-to-end with an extra
plot of plant vs. fast-model vs. delayed-model temperature.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jensandClaude Sonnet 4.6
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