Assessment of Proportional Integral Derivative Control Loops for Large Dominant Time Constant Processes
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K. Ghousiya Begum
,
A. Seshagiri Rao
Abstract
This manuscript deals with the assessment of parallel form of proportional integral derivative (PID) control structure for tracking the reference input designed for large dominant time constant processes whose dynamics are slow (integrating processes). The theoretical bound of integral absolute error (IAE) which is established for unstable first order process is extended to pure integrating process without using any approximations. This relies on direct synthesis tuning (DS) and the theoretical bound is obtained from the transfer function of closed loop system subjected to ramp input changes. An error based performance index is formulated on the basis of this IAE theoretical bound and actual IAE, to measure the behaviour of the controller employed for non self regulating (integrating) processes. This error based index evaluates the performance of closed loop controller and specifies whether the controller requires retuning or not. A sequence of simulated examples is used to illustrate the benefit and effectiveness of this new performance assessment method.
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Artikel in diesem Heft
- Editorial
- ICACSE-2019
- Research Articles
- Concentration Enrichment of Fermentation Derived Acetic Acid: Transport Modeling of Forward Osmosis-Nanofiltration Integrated System
- Simulation of a Scaled down 250 MWe CFB Boiler Using Computational Particle Fluid Dynamics Numerical Model
- Effect of Temperature on Effluent Quality in a Biological Wastewater Treatment Process
- Kinetic Modeling and Optimization of the Release Mechanism of Curcumin from Folate Conjugated Hybrid BSA Nanocarrier
- Optimization of Aqueous Two Phase Extraction of Proteins from Litopenaeus Vannamei Waste by Response Surface Methodology Coupled Multi-Objective Genetic Algorithm
- Optimization of the Ratio of ω-6 Linoleic and ω-3 α-Linolenic Fatty Acids of Hemp Seed Oil with Jackknife and Bootstrap Resampling
- Enhanced Dynamic Set-point Weighting Design for Two-Input-Two-Output (TITO) Unstable Processes
- The Hydrodynamics Studies on Loop Seal in CFBC Boiler Using CFD Analysis
- Assessment of Proportional Integral Derivative Control Loops for Large Dominant Time Constant Processes
