| 摘要 |
PURPOSE:To control each rotational frequency of a plurality of motors without using a expensive equipments, by controlling the output frequency of a pertinent generator group via control means with signal according to the deviation value between rotational frequency setting and rotational frequency detecting signal. CONSTITUTION:When a plurality of unit driving modules for driving the same propeller shafts are operated, then on the operational action of one of the unit driving modules, through a motor 1, the setting signal of a setting device 6 and rotational frequency detecting signal are compared with each other by a comparator 7. The deviation is applied to the rotational frequency controller 4 of generators, and at the controller 4, governor control signal for controlling the rotational number (frequency) of the respective generators G1-Gn against a generator group 3 is produced. The output of the generators G1-Gn is applied to the motor 1 via a main bus in a switchboard 2, and the motor 1 is driven.
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