Investigation of Periodic Modes of Sampled-Data Control Systems Containing a Saturating Element

1961 ◽  
Vol 83 (1) ◽  
pp. 77-81 ◽  
Author(s):  
W. E. Meserve ◽  
H. C. Torng
Keyword(s):  
Control System ◽  
Control Systems ◽  
Sampled Data ◽  
Discrete Sequence ◽  
Data Control ◽  
Sampled Data Control

A discrete sequence approach is presented in this paper for investigating the possible modes of sampled-data control systems containing a saturating element. This method enables the investigator (a) to determine whether or not a control system has certain periodic modes, and (b) if it does, to identify them exactly. This approach is applicable to a sampled-data control system of any order. It is extended to the cases where the form of feedback is other than unity.

Determining Maximum Sample Period Under Performance Constraints for Sampled-Data Control Systems

2009 ◽  
Author(s):  
Jie Ma ◽  
George T.-C. Chiu
Keyword(s):  
Control System ◽  
Control Systems ◽  
High Performance ◽  
Systems Design ◽  
Sample Period ◽  
Sampled Data ◽  
Lifting Technique ◽  
Data Control ◽  
Sampled Data Control ◽  
Sample Rate

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.

Sign in / Sign up

Export Citation Format

Share Document