System Overview

5.1.9Rotor/Flywheel—Rotating Group

The flywheel is made of carbon/glass composite. This is mounted on a metal shaft with integral motor-rotor and together these components form the rotating group. The rotating group is magneti- cally levitated and centered so that it does not touch any other part while in normal operation.

Figure 39 Rotating group

5.1.10Motor Generator

The rotor is positioned within the stator in such a way that the rotor and stator provide the motor-generator function of the Liebert FS. The stator is liquid cooled and operates within a housing in which air has been evacuated. Together the stator and rotor operate as a synchronous reluctance motor-generator produces enough power for the system to supply its own internal demand and to sup- ply to the output DC bus up to the rated power. The illustration in Figure 40 shows the four poles of the synchronous reluctance machine.

Figure 40 Cross-section of the synchronous reluctance motor rotor

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Emerson Series 600, SERIES 600T user manual Rotor/Flywheel-Rotating Group, Motor Generator

Series 600, SERIES 600T specifications

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