Multi-Motor Drives for Crane Application
Open Access
- 1 January 2009
- journal article
- Published by Universitatea Stefan cel Mare din Suceava in Advances in Electrical and Computer Engineering
- Vol. 9 (3), 57-62
- https://doi.org/10.4316/aece.2009.03011
Abstract
This paper focuses on the application of adjustable speed induction motor drives for gantry cranes. Modern solution considers application of frequency converters for all drives. Multi-motor drives are standard solutions in crane application and requirements of load sharing are present. Presented algorithm provides load sharing proportional to the rated motor power on the simple and practically applicable method on the basis of estimated torques by frequency converters, and controller realized in PLC. Special attention is devoted to wide span gantry drive and algorithm for skew elimination. Solutions for load distribution in multi-motor drive, as well as mode of gantry drive skew elimination, are described. Suggested solution concept is confirmed by the experimental resultsKeywords
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