High Precision Motion Control of Servo Drives |
| |
Authors: | Jezernik K Rodic M |
| |
Affiliation: | Fac. of Electr. Eng. & Comput. Sci., Univ. of Maribor, Maribor, Slovenia; |
| |
Abstract: | In this paper, we investigate the advantages and feasibility of motor control using very fast (in megahertz) switching in place of traditional amplifiers. We also propose integrated motion-control architecture based on discrete-event control approach to be implemented in digital logic at an equally high rate. A switching controller combines the current and motion feedback paths into a single loop. A model-based observer estimates the load torque. When compared to second-order controllers implemented with traditional amplifiers, the proposed design promises increased performance, better efficiency, and improved load estimation. Simple implementation makes concepts of switching control very attractive in motion-control systems like control of dc or ac servomotors. The control algorithm designed by the proposed approach can be easily implemented on field programmable gate array platforms. |
| |
Keywords: | |
|
|