Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
An Advanced Boiler Start-Up Controller Using the Plant Inverse Model
Yukio FUKAYAMAMitsuyuki TAKAHASHIAkira WATANABEKatsumi SHIMOHIRAMikio YAMANAKATaku OSHIMA
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1995 Volume 8 Issue 11 Pages 629-640

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Abstract

In order to improve the boiler start-up performance including flexibility in schedules, management of the fatigue damage at pressured parts and reduction in the operational costs, an advanced controller is proposed. It consists of a “demand calculator for the steam pressure and temperature changing rate, considering the schedules and the fatigue damage” and a “fuel-minimum controller for the demanded changing rate applying an inverse model of the physical phenomena in the plant”. In this report, derivation of the inverse model and the controlling logic as well as a performance comparison on an actual 600MW power plant circumstance with the prior art are introduced.

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