Considerations for low-inertia AC drives in machine tool axis servo applications
- 1 January 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. 27 (2) , 262-267
- https://doi.org/10.1109/28.73609
Abstract
The important differences encountered in applying AC permanent magnet servomotors that might have one-tenth of the shaft inertias of their torque-equivalent predecessors to machine tool axis servo applications are examined. Experimental results demonstrating these differences and corroborating the conclusions drawn are provided. Experimental testing was accomplished on a motor test stand and in a machine tool axis servo application. The test stand had two AC servomotors coupled in a motor/dynamometer configuration. Analytical and experimental results demonstrate that in addition to affecting the acceleration or command-following capabilities of the servomotor, reduction of shaft inertia affects the controller tuning robustness, bandwidths, and dynamic stiffness characteristics and also has implications for the drive/controller sampling rate. The process of selecting an appropriate servomotor for such axis servo applications is reviewed, and the factors that are affected by motor/magnet technology are summarized.Keywords
This publication has 3 references indexed in Scilit:
- Synchronized motion control for process automationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
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