vault backup: 2025-08-11 16:39:18

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Dane Sabo 2025-08-11 16:39:18 -04:00
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### Goals:
The goal of this research is to create an adaptive controller
that can adjust to system dynamics changes over time to maintain
an optimal control, while using formal methods to provide strong
safety guarantees about the malleable control law.
The goal of this research is to create an adaptive
controller for a reactor control system that can adjust to
system dynamics changes from component degredation or
post-maintenance effects to maintain an optimal control,
while using formal methods to provide strong safety
guarantees that all adaptations remain within verified
safety limits.
### Outcomes:
For this research to be successful, I will accomplish the
following:
- Create a simulation suite for the Small Modular Advanced High
Temperature Reactor (SmAHTR) to simulate component degradation
such as heat exchanger blockages and fuel concentration burn-up.*
1. Create a simulation suite for the Small Modular Advanced
High Temperature Reactor (SmAHTR) to simulate component
degradation such as heat exchanger fouling or chemistry
changes following maintenance.
- Create an adaptive control rod controller to maximize load following
precision for a simulated power grid demand.
2. Create a parameter adaptive control rod controller to maximize
load following precision for a simulated power grid
demand.
- Use contract based verification at runtime to ensure that
learned parameters for the adaptive controller remain within
safety specification limits
*Is this actually even a problem for SmAHTR? Figuring the fuel is
suspended in the salt I'd assume chemistry is pretty strictly
controlled. I'm sure I can find other examples.
3. Use contract based verification at runtime to ensure that
learned parameters for the adaptive controller remain
within safety specification limits.
### Impact:
Certain reactor control systems are already automatic systems,
such as constant temperature or pressure controls for operating
at steady state. These simple controllers are able to follow load
changes from the power grid on their own, but over will lose
efficiency as the underlying plant mechanics become less
efficient, or maintenance is performed and components are
refreshed. For nuclear power contexts, fine control is ideal to
maximize profits and to minimize energy wasteage. This is not an
easy problem to solve, however, as the dynamics of the underlying
plant are constantly changing. Adaptive control can help address
this issue, but learnable controllers must come with guarantees
of safety in order to be attractive to the nuclear industry.
Many reactor control systems already automate steady-state
operation and basic load-following, but their performance
degrades over time as plant equipment wears or is replaced.
Without retuning, controllers may become less efficient,
leading to suboptimal thermal efficiency, reduced grid
responsiveness, and unnecessary operational margins that can
lead to unnecessary shutdowns. Adaptive control can address
these challenges by continuously tuning control parameters
to match the evolving plant dynamics. However, without
provable safety guarantees, such adaptation is unlikely to
be accepted in high-assurance domains without proof of
controller safety. By embedding formal, contract-based
verification into the adaptation process, this work will
enable the use of responsive and efficient control
strategies that maintain regulatory compliance while
improving plant performance and availability.
### Related Papers: