Control Reconfiguration to Improve HDA Process Optimality

Application of plantwide control to the HDA process. I—steady-state optimization and self-optimizing control

This paper describes the application of self-optimizing control to a large-scale process, the HDA plant. The idea is to select controlled variables which when kept constant lead to minimum economic loss. First, the optimal active constraints need to be controlled. Next, controlled variables need to be found for the remaining unconstrained degrees of freedom. In order to avoid the combinatorial ...

Application of a plant-wide control design to the HDA process

Application of Plantwide Control to Large Scale Systems. Part I - Self-optimizing Control of the Hda Process

This paper describes the application of self-optimizing control to a large scale process, the HDA plant. The idea is to select controlled variables which when kept constant lead to minimum economic loss. In order to avoid the combinatorial problem common to the selection of outputs/measurements for such large plants, applications of singular value decomposition (SVD) based methods are used whic...

Reconfiguration of distribution systems to improve reliability and reduce power losses using Imperialist Competitive Algorithm

Distribution systems can be operated in multiple configurations since they are possible combinations of radial and loop feeders. Each configuration leads to its own power losses and reliability level of supplying electric energy to customers. In order to obtain the optimal configuration of power networks, their reconfiguration is formulated as a complex optimization problem with different objec...

553g Fault-Tolerant Process Control: Nonlinear Fdi and Reconfiguration

Charles McFall, Adiwinata Gani, Prashant Mhaskar, Panagiotis D. Christofides, and James F. Davis Chemical plants are large-scale systems that involve a complex, distributed arrangement of a number of processing units (reactors, distillation columns, absorbers, pumps, heat exchangers, etc.) connected in series or in parallel, with recycle of material and energy integration among various parts of...