Induction machine drive in energy efficient industrial forklift

Author

Minav, T.A. ; Pyrhönen, J.J. ; Laurila, L.I.E.

Author_Institution

LUT Energy, Lappeenranta Univ. of Technol., Lappeenranta, Finland

fYear

2012

fDate

20-22 June 2012

Firstpage

415

Lastpage

419

Abstract

This paper investigates the effect of an induction machine (IM) drive on the efficiency of an electric energy recovery system of a hydraulic forklift. The control of the hydraulic system is implemented directly with a motor drive without control valves. The paper provides accurate evaluation of the hydraulic system and a detailed analysis of electric part of the working machine. A theoretical analysis is made and the model is verified by practical results. Finally, possible improvements of the efficiency in the suggested system are considered.

Keywords

energy conservation; fork lift trucks; hydraulic drives; hydraulic motors; induction motor drives; IM drive; control valve; electric energy recovery system; energy efficient industrial hydraulic forklift; hydraulic system; induction machine drive; motor drive; theoretical analysis; working machine; Batteries; Energy efficiency; Gears; Induction motors; Pumps; Stator windings; Valves; Electric drive; energy efficiency; forklift; hydraulics; induction machine; potential energy recovery;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on

Conference_Location

Sorrento

Print_ISBN

978-1-4673-1299-8

Type

conf

DOI

10.1109/SPEEDAM.2012.6264601

Filename

6264601