Founded in 1971 >
Chinese Sci-tech Core Periodicals >
British Science Abstracts (SA, INSPEC) Indexed Journals >
United States, Cambridge Scientific Abstract: Technology (CSA: T) Indexed Journals >
United States, Ulrich's Periodicals Directory(UPD)Indexed Journals >
United States, Cambridge Scientific Abstract: Natural Science (CSA: NS) Indexed Journals >
Poland ,Index of Copernicus(IC) Indexed Journals >
International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: Aiming at the problems of low transmission efficiency, high energy loss, and heavy maintenance workload in traditional shovel lifting systems, a shovel lifting scheme design using permanent magnet outer rotor drum to directly drive the lifting device was proposed,and the dynamic characteristics of permanent magnet external rotor hoisting system were studied. Firstly, the excavation trajectory of the electric shovel was analyzed, and an expression for the excavation trajectory function based on time history was established. The calculation method of tooth tip load and excavation volume was determined, and the force on the bucket during the excavation process was analyzed. Secondly, a 3D model of the shovel was established using SolidWorks, and it was imported into the CAD module of SimulationX. A multi-body dynamic model of the shovel was established, and external load curves were loaded to simulate the force situation during the excavation process of the shovel. Then, the multi-body dynamics model of the electric shovel was packaged into a MATLAB subsystem and connected to the permanent magnet outer rotor drum control module in Simulink. The proportion integral (PI) regulator and the permanent magnet synchronous motor (PMSM) vector control method were used to improve the dynamic performance and disturbance resistance of the drum. Finally, the joint simulation model in Simulink was used to simulate and analyze the excavation process of the electric shovel, and the variation curves of lifting force, pushing force, and motor power were obtained. The research results indicate that comparing with traditional lifting systems, the permanent magnet outer rotor drum lifting system can save energy and reduce consumption by about 27%, while the overall energy saving during the excavation process of the electric shovel is about 18%. The lifting pushing force is compared and verified on a 1∶30 simulation prototype test bench. The permanent magnet outer rotor drum lifting scheme greatly reduces excavation energy consumption, providing a reference for the transformation of green equipment in electric shovels.
Key words: lifting design of mining electric shovel; dynamic modeling; permanent magnet lifting system; co-simulation; SimulationX; proportion integral (PI) regulator; permanent magnet synchronous motor (PMSM) vector control method
-
- Chinese Core Periodicals
-
- Chinese Sci-tech Core Periodicals
-
- SA, INSPEC Indexed
-
- CSA: T Indexed
-
- UPD:Indexed
-
2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
