Page 58 - RSE - Results of the Apollon Project

Results of the APolloN PRoject ANd coNceNtRAtiNg PhotovoltAic PeRsPective

Rotation device for the tracker

Figure 65 shows the DAD-8-659 rotation device by TGB as used on the APOLLON tracker. It consists of two slewing
rings, one for azimuth movements and one for zenith movements, integrated in a single housing. This device was
specifcally developed and optimized for use on CPV trackers by TGB and Soitec. Rotations on both axes are powered
by a 0.37 kW AC motor. The gear ratio of the worm is 1:80 but between the motor and the worm an additional 1:1,024
gearbox has been used (blue on photo). Incremental encoders are placed on the opposite end of the worm axis.
Power supply to the motors is controlled by the tracking control system of Tecnalia.

FiguRE 65. Rotation Device DAD-8-659 by TGB as used on the Apollon Tracker. The lower part of the fgure shows
the azimuth capacities of the device. Zenith capacities are the same

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Full tracker Structure for a Future 90 m CPv-panel
Figure 66 shows the full envisaged tracker system proposed by ASSE with a frame of more than 90 m , containing
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the equivalent of 90 APOLLON modules (totaling 2,700 to 3,000 cells). This tracker has not been installed during the
APOLLON project but is intended to be used in the exploitation phase.

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FiguRE 66. ASSE Final tracker confguration with a full frame of approx 90 m containing the equivalent of 90
APOLLON modules

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