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Dunkermotoren develops tracking motors for CSP plants

Dunkermotoren's gearing offers the high-reduction ratios needed for parabolic trough collectors' low-speed operation
Dunkermotoren's gearing offers the high-reduction ratios needed for parabolic trough collectors' low-speed operation

On August 29th, 2012, Dunkermotoren USA Inc. (Elgin, Illinois) announced that it has developed new bifurcated Wormetary solar tracking motors.

The new gear-motors are designed to meet the concentrating solar power (CSP) applications' requirements, while offering several unique benefits, Dunkermotoren emphasizes.

The innovative gearing combines a right angle worm gear to turn the corner with a pair of efficient planetary gearboxes for a total reduction ratio of 529:1, without an undue sacrifice in efficiency. Overall reductions up to 50,000:1 can be achieved with the Wormetary configuration, the company states.

"The Wormetary gearing offers the high-reduction ratios needed for parabolic trough collectors' low-speed operation. Their dual output shaft configuration is suited for this type of CSP application. It also lends itself well to certain linear fresnel collector applications where it can replace special slew drives," stated John Morehead, Dunkermotor vice president, business development.

"With Dunkermotor's configurable modular system we can just as easily supply Bifurcated Wormetary solutions with our intelligent servo and brushless dc motors. The intelligent servo motors feature integral control capabilities ranging from 4-quadrant digital speed or positioning to master electronics, including CANopen, Profibus and EtherCAT fieldbus connectivity."

The low-voltage (12-60 volt) brush and brushless motors are available in frame sizes from 42 to 80 mm, with power up to 530 Watts (0.71 hp) and are part of a modular system that includes motors, gearing, controls, fieldbus interfaces, encoders and brakes, according to the company.

 

 

2012-09-02 | Courtesy: Dunkermotoren USA | solarserver.com © Heindl Server GmbH

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