6533b860fe1ef96bd12c3098
RESEARCH PRODUCT
Online mass flow prediction in CFB boilers with explicit detection of sudden concept drift
Mykola PechenizkiyAndriy IvannikovIndrė ŽLiobaitėTommi KärkkäinenJorn Bakkersubject
Ground truthConcept driftComputer scienceMass flowGeography Planning and DevelopmentBoiler (power generation)Control theoryControl systemGeneral Earth and Planetary SciencesDomain knowledgeFluidized bed combustionChange detectionSimulationWater Science and Technologydescription
Fuel feeding and inhomogeneity of fuel typically cause fluctuations in the circulating fluidized bed (CFB) process. If control systems fail to compensate the fluctuations, the whole plant will suffer from dynamics that is reinforced by the closed-loop controls. This phenomenon causes reducing efficiency and the lifetime of process components. In this paper we address the problem of online mass flow prediction, which is a part of control. Particularly, we consider the problem of learning an accurate predictor with explicit detection of abrupt concept drift and noise handling mechanisms. We emphasize the importance of having domain knowledge concerning the considered case and constructing the ground truth for facilitating the quantitative evaluation of different approaches. We demonstrate the performance of change detection methods and show their effect on the accuracy of the online mass flow prediction with real datasets collected from the experimental laboratory-scale CFB boiler.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-05-27 |