THE TRANSFER FUNCTION OF A STEADILY DIVERGING REACTOR
Journal Article
·
· J. Nuclear Energy
In the design of automatic control systems which operate a diverging reactor, e.g., automatic start-up systems, a knowledge of the transfer function of the reactor is required. General expressions for the gain and phase shift of a steadily diverging reactor as functions of frequency are derived. Numerical values have been computed for a reactor with six groups of U/sup 235/ delayed neutrons. Doubling times'' of 1, 5, and 20 sec and mean neutron lifetimes of 10/sup -3/, 10/sup -4/, and 10/sup -6/ sec have been considered and results for these values are shown graphically. The results show that the transfer function of a diverging reactor is significantly different from that of a reactor in the steady state. The differences are of such a nature as to decrease the phase and gain margins of stability of the control system. The additional stability margins required can be found from the graphs. (auth)
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Berks, Eng.
- NSA Number:
- NSA-12-011891
- OSTI ID:
- 4302262
- Journal Information:
- J. Nuclear Energy, Journal Name: J. Nuclear Energy Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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