Title :
An Adaptive Dynamic Matrix Control With Fuzzy-Interpolated Step-Response Model for a Drum-Type Boiler-Turbine System
Author :
Moon, Un-Chul ; Lee, Kwang Y.
Author_Institution :
Sch. of Electr. & Electron. Eng. ing, Chung-Ang Univ., Seoul, South Korea
fDate :
6/1/2011 12:00:00 AM
Abstract :
In this paper, dynamic matrix control (DMC) is made adaptive for a boiler-turbine system by using online interpolated step-response model (SRM) with fuzzy inference. A plant is described as an SRM in a conventional DMC. However, a nonlinear boiler-turbine system cannot be effectively modeled as a single SRM. In this paper, the plant is modeled with nine SRMs at various operating points, and then they are interpolated with fuzzy inference rules. The interpolation is performed at every sampling step online in order to find the best SRM for an arbitrary operating point. Therefore, the proposed adaptive DMC can achieve a bumpless control for nonlinear systems. Simulation results show satisfactory result with a wide range operation of a boiler-turbine system.
Keywords :
adaptive control; boilers; fuzzy control; fuzzy reasoning; nonlinear systems; power engineering computing; steam turbines; DMC; adaptive dynamic matrix control; bumpless control; drum-type boiler-turbine system; fuzzy inference; fuzzy inference rules; fuzzy-interpolated step-response model; nonlinear boiler-turbine system; nonlinear systems; online interpolated step-response model; Adaptation model; Adaptive systems; Interpolation; Mathematical model; Moon; Nonlinear dynamical systems; Power systems; Adaptive control; boiler-turbine control; dynamic matrix control; fuzzy inference; power generation control;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2011.2116023
