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Tighten rod auto-control to better hit 3GW

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Codex Agent
2025-11-28 19:35:45 +01:00
parent 7d4d2f1d4f
commit f67e05bee2
1 changed files with 3 additions and 3 deletions
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6
src/reactor_sim/control.py
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@@ -37,7 +37,7 @@ class ControlSystem:
return self.rod_fraction return self.rod_fraction
error = (state.power_output_mw - self.setpoint_mw) / self.setpoint_mw error = (state.power_output_mw - self.setpoint_mw) / self.setpoint_mw
# When power is low (negative error) withdraw rods; when high, insert them. # When power is low (negative error) withdraw rods; when high, insert them.
adjustment = error * 0.2 adjustment = error * 0.35
adjustment = clamp(adjustment, -constants.CONTROL_ROD_SPEED * dt, constants.CONTROL_ROD_SPEED * dt) adjustment = clamp(adjustment, -constants.CONTROL_ROD_SPEED * dt, constants.CONTROL_ROD_SPEED * dt)
self.rod_target = clamp(self.rod_target + adjustment, 0.0, 0.95) self.rod_target = clamp(self.rod_target + adjustment, 0.0, 0.95)
self._advance_banks(self.rod_target, dt) self._advance_banks(self.rod_target, dt)
@@ -78,10 +78,10 @@ class ControlSystem:
if subcooling_margin is not None: if subcooling_margin is not None:
severity = max(severity, max(0.0, 3.0 - subcooling_margin) / 3.0) severity = max(severity, max(0.0, 3.0 - subcooling_margin) / 3.0)
if dnb_margin is not None: if dnb_margin is not None:
severity = max(severity, max(0.0, 1.0 - dnb_margin) / 1.0) severity = max(severity, max(0.0, 0.7 - dnb_margin) / 0.7)
if severity <= 0.0: if severity <= 0.0:
return return
backoff = (0.005 + 0.03 * severity) * dt backoff = (0.003 + 0.02 * severity) * dt
self.rod_target = clamp(self.rod_target + backoff, 0.0, 0.95) self.rod_target = clamp(self.rod_target + backoff, 0.0, 0.95)
self._advance_banks(self.rod_target, dt) self._advance_banks(self.rod_target, dt)
LOGGER.debug("Safety backoff applied: target=%.3f severity=%.2f", self.rod_target, severity) LOGGER.debug("Safety backoff applied: target=%.3f severity=%.2f", self.rod_target, severity)