For sampled-data control systems, where a continuous-time plant is under digital control, one of the most important design parameter is the sample rate/period. Higher sample rate typically is associated with the need of high performance components and processors that results in higher system cost. In this paper, we propose an approach to determine the slowest sample rate for a sampled-data control system that will achieve the desired performance and robustness specifications. An optimization problem can be formulated using lifting technique to parameterize sample period for a sampled-data control system. The utility of the proposed approach is numerically verified through the control systems design of the media advance system of an inkjet printer.
- Dynamic Systems and Control Division
Determining Maximum Sample Period Under Performance Constraints for Sampled-Data Control Systems
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Ma, J, & Chiu, GT. "Determining Maximum Sample Period Under Performance Constraints for Sampled-Data Control Systems." Proceedings of the ASME 2009 Dynamic Systems and Control Conference. ASME 2009 Dynamic Systems and Control Conference, Volume 1. Hollywood, California, USA. October 12–14, 2009. pp. 437-443. ASME. https://doi.org/10.1115/DSCC2009-2747
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