| 摘要 |
A control loop for regulating the magnitude of a variable quantity of an apparatus to a reference value, for example the steam pressure in the output line from a boiling water reactor, wherein the instantaneous magnitude of the steam pressure is compared with a reference value and the difference therebetween is used to regulate a valve in the steam line in such manner as to eliminate the difference. The control loop also includes one resonance filter for the regulating medium whose resonant frequency coincides with the frequency at which the control loop, in the absence of such a filter, would become unstable.
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