Use of Dynamic Time Warping for Description of Combustion Process in a Biomass Boiler

IF 1.3 Q2 AGRICULTURE, MULTIDISCIPLINARY

Acta Technologica Agriculturae Pub Date : 2022-03-01 DOI:10.2478/ata-2022-0006

Martin Kucín, M. Fajman, A. Polcar, J. Čupera

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Abstract

Abstract The efficient biomass energy use is a key prerequisite for the implementation of renewable energy development strategies on a regional level. For the highly efficient energy use in the combustion process, it is necessary to properly regulate the process based on its precise description. The paper aim is to evaluate whether dynamic time warping (DTW) methods can be used for this description, as well as for the recognition of the specific operating state of a biomass boiler. For the DTW analysis, operating records of more than 10 hours of a laboratory biomass boiler (P = 25 kW) were used, including an emission analysis, for which the operating modes were intentionally alternated in order to identify the stable and transient states of boiler operation. Based on the results, it can be stated that the identical partial operating sections of the controlled variables can be reliably identified in the operating variables of boiler by means of the DTW method, since its manifestations of operating regulation showed compliance with the given operating state, and it is possible to identify a partial quantity for estimating the total operating boiler state.

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动态时间翘曲用于生物质锅炉燃烧过程的描述

高效利用生物质能是实施区域可再生能源发展战略的关键前提。为了在燃烧过程中实现能源的高效利用，有必要在对燃烧过程进行精确描述的基础上对其进行适当的调节。本文的目的是评估动态时间翘曲(DTW)方法是否可以用于这种描述，以及对生物质锅炉具体运行状态的识别。对于DTW分析，使用了实验室生物质锅炉(P = 25 kW)超过10小时的运行记录，包括排放分析，其中故意交替运行模式，以确定锅炉运行的稳定状态和瞬态状态。结果表明，由于DTW方法的运行规律表现符合给定的运行状态，因此可以可靠地识别出锅炉运行变量中受控变量的相同部分运行段，并且可以识别出用于估计锅炉总运行状态的部分量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Technologica Agriculturae AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

2.50

自引率

28.60%

发文量

审稿时长

18 weeks

期刊介绍： Acta Technologica Agriculturae is an international scientific double-blind peer reviewed journal focused on agricultural engineering. The journal is multidisciplinary and publishes original research and review papers in engineering, agricultural and biological sciences, and materials science. Aims and Scope Areas of interest include but are not limited to: agricultural and biosystems engineering; machines and mechanization of agricultural production; information and electrical technologies; agro-product and food processing engineering; physical, chemical and biological changes in the soil caused by tillage and field traffic, soil working machinery and terramechanics; renewable energy sources and bioenergy; rural buildings; related issues from applied physics and chemistry, ecology, economy and energy.