| 摘要 |
<p>PURPOSE:To detect average angular velocity in the shaft system of turbine generator quickly with high accuracy, by subtracting torsional vibration component of shaft simulated through a simulator from an actual angular speed signal of a turbine generator. CONSTITUTION:A torsional vibration simulator of the shaft of a turbine generator receives same vibrating force as that of the turbine generator as a first input and a state variable measurable directly from the shaft system as a second input so as to operate an angular velocity signal omega composed only of the torsional vibration component of the shaft of the turbine generator. Then an output signal omega from a shaft torsional vibration simulator is subtracted from an angular velocity detection signal omega' measured through a turbine generator shaft system to produce an average angular velocity signal omega deg.. Consequently, an average angular velocity component can be obtained without accompanying a time delay.</p> |
