New digital control algorithm applied to SISO systems
- Louisville Univ., KY (USA)
A new digital control algorithm for single input-single output (SISO) and multiple input-multiple output (MIMO) systems has been developed. The algorithm, which the authors call conservative model based controller (CMBC), utilizes easily available step response data and contains a single tuning constant. Dead time compensation has been built into the algorithm and the algorithm gives offset-free performance in the presence of modeling errors. In the absence of modeling errors, the algorithm yields perfect control (deadbeat control) for set point changes and excellent control for load changes. The robustness properties of the algorithm allow for stable control in the presence of modeling errors. CMBC has been applied to control simulated first order with dead time processes and the performance compared with PI, PID, IMC and SMPC algorithms. A comparison of the results shows that the new algorithm gives superior performance over a wide range of controllability ratios for both set point and load changes. The application of CMBC to SISO systems is explored in this article.
- OSTI ID:
- 5145070
- Journal Information:
- Hydrocarbon Processing; (USA), Vol. 68:10; ISSN 0018-8190
- Country of Publication:
- United States
- Language:
- English
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