Method and apparatus for regulating a steam turbine

摘要

A method and apparatus for regulating a steam turbine comprising at least one resuperheater arranged between a high pressure section and a low pressure section and in which a reference-actual valve comparison of the rotational speed is performed to produce an adjustment signal derived from the reference-value actual-value difference which is delivered to a regulation valve arrangement and wherein a delayed feedback signal is derived from only one vapor pressure high pressure side measuring pressure, between the inlet valves of the high pressure section and the inlet of the resuperheater, and which at least approximately decreases to null during steady-state operation; and said signal is coupled into the regulation circuit opposite to the adjustment signal.