| 摘要 |
PURPOSE:To largely improve the reliability of the speed control of a commutatorless dynamotor by producing speed feedback signals from a tachometer generator and a distributor, always comparing them and detecting the presence or absence of a malfunction. CONSTITUTION:Speed feedback signals are produced from a tachometer generator connected to the same shaft as a commutatorless dynamotor 2 as flywheel generator and a pulse generator 11, compared by a comparator 14 to always confirm the presence or absence of a malfunction, and the signal from the generator 11 is used at the normal time. For example, when the signal from the generator 11 is down due to certain reason, it is automatically switched to the signal from the dynamotor 1 to input the output of the comparator 14 to the error signal detector and to compare it with a speed reference 16, thereby detecting the error signal. This error signal is inputted to the gate of the thyristor bridge circuit 6 for a power reactor, thereby controlling the speed of the dynamotor 2. |
