Feedback control systems for non-linear simulation of operational transients in LMFBRs

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5853888

Khatib-Rahbar, M; Agrawal, A K; Srinivasan, E S

Feedback control systems for non-linear simulation of operational transients in LMFBRs are developed. The models include (1) the reactor power control and rod drive mechanism, (2) sodium flow control and pump drive system, (3) steam generator flow control and valve actuator dynamics, and (4) the supervisory control. These models have been incorporated into the SSC code using a flexible approach, in order to accommodate some design dependent variations. The impact of system nonlinearity on the control dynamics is shown to be significant for severe perturbations. Representative result for a 10 cent and 25 cent step insertion of reactivity and a 10% ramp change in load in 40 seconds demonstrate the suitability of this model for study of operational transients without scram in LMFBRs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5853888
• Report Number(s): BNL-NUREG-26572; CONF-790816-48
• Country of Publication: United States
• Language: English

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ACCIDENTS
ATWS
BREEDER REACTORS
CONTROL SYSTEMS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FEEDBACK
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
REACTIVITY
REACTIVITY INSERTIONS
REACTOR ACCIDENTS
REACTOR CONTROL SYSTEMS
REACTORS