Adaptively receding Galerkin optimal control for a nonlinear boiler-turbine unit
type: Item
instance of: scholarly article
title: Adaptively receding Galerkin optimal control for a nonlinear boiler-turbine unit
zbMATH Open document ID: 1405.93172
DOI: 10.1155/2018/8643623
author: Y. Aharonov
published in: Complexity
publication date: 2018-12-18T00:00:00Z
review text: Summary: The boiler-turbine unit is really a complex system in thermal power engineering due to its large-scale nonlinearity, unmeasured state, unknown disturbances, and constraints imposed on both controls and outputs. To design a controller with appropriate performance in above synthetical cases, this paper intends to propose an adaptively receding Galerkin optimal controller design method, in which, the mathematical dynamics of unit can be directly used as a predictive model without any linearization, and the unmeasured state in the predictive model is adaptively estimated using a predesigned state observer. With the help of a mathematical predictive model, optimal control law is then obtained based on a Galerkin optimization algorithm. Due to the application of the useful information measured at every sampling time instant, the proposed method can deal with the tracking problem with constraints rather than the stabilization problem that can be only done by the traditional Galerkin optimal control. Furthermore, it can also be easily extended to estimate and thus eliminate constant disturbances in an output channel using an independent model strategy. Some simulations suggest that satisfactory tracking performance can be achieved even when the unit experiences wide-range load change.
Mathematics Subject Classification ID: 93C95
Mathematics Subject Classification ID: 93C15
Mathematics Subject Classification ID: 65L60
zbMATH DE Number: 6995068
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2018/8643623
OpenAlex ID: W2885032699
cites work: A novel optimal control method for impulsive-correction projectile based on particle swarm optimization
cites work: A Pseudospectral Method for the Optimal Control of Constrained Feedback Linearizable Systems
cites work: Galerkin optimal control
cites work: The pseudospectral Legendre method for discretizing optimal control problems
Wikidata QID: Q129429590
description: scientific article; zbMATH DE number 6995068