| 摘要 |
<p>PURPOSE:To set an AC generator to a synchronous state in a short time by controlling the frequency of an AC generator so that the integrated circuit of a frequency deviation becomes equal to an initial phase difference from when the frequency deviation and the phase difference become the prescribed values. CONSTITUTION:When a frequency deviation DELTAF is the prescribed value or lower, a signal P becomes H, and a speed uniformizing signal from an auxiliary speed uniformizing signal circuit 45 is applied through a contact 46A to a governor actuator 48. When the deviation DELTAF becomes the prescribed value or lower, the signal P becomes L, and a signal Q becomes H. A polarity discrimination comparator 33 outputs a signal H in case of DELTAF<0. When the phase difference DELTAthetabecomes the prescribed value or lower in this state, a speed control program unit 43 applies a speed control signal so that the integrated value of the deviation DELTAF becomes equal to the initial value of the phase difference to the actuator 48.</p> |
