| 摘要 |
<p>The electric supply source (20) consists of a medium-voltage polyphase supply circuit (21) of lower power than the theoretical power required to supply the high-power electric motor (5) which rotates a centrifugal arm (1), a voltage step-down polyphase transformer (22), a first static device (23) for controlling a polyphase rotating machine, the control device (23) having a polyphase input connected to the secondary of the polyphase transformer (22) and a polyphase output connected to a node (29) of electrical connections, a polyphase rotating machine (27) connected electrically to the said node (29), a large capacity inertia flywheel (28) mechanically coupled to the said polyphase rotating machine (27), and output terminals (30) connected to the said node (29). The high-power electric motor (5) is connected to the output terminals (30) through a second static device (7) for controlling an electric motor.
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