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AssigneeMassachusetts Institute of Technology
InventorsJohn A. Bernard, Allan F. Henry, David D. Lanning, Kwan S. Kwok
Estimating the term…
Closed-loop controller for altering the power level of nuclear reactors in a safe manner and without overshoot. Apparatus is provided for moving a control element such as a control rod or for adjusting the concentration of a soluble neutron absorber (chemical shim) for altering the nuclear reactor power level. A computer computes at short time intervals the two functions [.rho.(t)-.vertline..rho..sub.c .vertline./.lambda..sub.e '(t)]/.vertline..rho..sub.c .vertline. and .tau.(t)ln(P.sub.F /P(t)). The direction of motion of the control element is altered when these two functions become equal thereby resulting in the attainment of a new power level without overshoot. In a preferred embodiment, these two functions are computed at intervals of approximately one second.
Apparatus for closed-loop control of reactor power in a nuclear reactor in which power level is altered by adjustments in reactivity balance comprising:
Method for closed-loop control of reactor power in a nuclear reactor in which power level is altered by adjustments in reactivity balance comprising:
Apparatus for closed-loop control of reactor power in a nuclear reactor in which power level is altered by movement of a control element comprising:
Method for closed-loop control of reactor power in a nuclear reactor in which power level is altered by movement of a control element comprising:
Apparatus for closed loop control of reactor power, in a nuclear reactor in which power level is altered by adjustment of the concentration of a soluble absorber (chemical shim) comprising:
Method for closed-loop control of reactor power in a nuclear reactor in which power level is altered by adjustment of the concentration of soluble absorber (chemical shim) comprising:
Method for control of reactor power in a nuclear reactor in which power level is altered in response to either a closed-loop control law or an open-loop decision of a human operator comprising:
Apparatus for control of reactor power in a nuclear reactor in which power level is altered in response to either a closed-loop control law or an open-loop decision of a human operator comprising:
Method for control of reactor power in a nuclear reactor in which power level is altered in response to either a closed loop control law or an open loop decision of a human operator comprising:
Apparatus for control of reactor power in a nuclear reactor in which power level is altered in response to either a closed loop control law or an open loop decision of a human operator comprising:
Dependencies are inferred from the claim text.