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Institute of Electrical and Electronics Engineers, IEEE Transactions on Industrial Electronics, 6(59), p. 2466-2474, 2012

DOI: 10.1109/tie.2011.2148682

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Permanent Magnet Synchronous Machine Sizing: Effect on the Energy Efficiency of an Electro-Hydraulic Forklift

Journal article published in 2012 by Tatiana A. Minav ORCID, Juha J. Pyrhonen, Lasse I. E. Laurila
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The energy efficiency of an electro-hydraulic forklift is significantly improved by using a permanent-magnet-synchronous-motor-servo-drive-based direct pump control to control the position of the fork without control valves. This paper provides a short evaluation of the hydraulic system and a more detailed analysis of the losses of the electric machine drive system. A theoretical approach is taken and the results are verified by practical measurements. Finally, possible improvements of the energy efficiency in the suggested system are discussed.