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首页> 外文期刊>Journal of Modern Power Systems and Clean Energy >Analysis of hourly generation patterns at large coal-fired units and implications of transitioning from baseload to load-following electricity supplier
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Analysis of hourly generation patterns at large coal-fired units and implications of transitioning from baseload to load-following electricity supplier

机译：大型燃煤机组的小时发电模式分析以及从基本负荷转变为负荷跟随的电力供应商的意义

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摘要

Several factors have led to the decline of electricity generation from coal over the past decade, and projections forecast high rates of growth for wind and solar technologies in coming years. This analysis uses hourly generation data from large coal-fired power stations to determine how operations have been modified in recent years and describes the implications of these changes for plant equipment and unit reliability. The data shows increasing variability in intraday generation output that affects nearly all of the units in the sample, but the magnitude of increase varies widely among plants. Outage patterns were examined as was the relationship between renewable energy growth in a region and the changes in coal plant operations. Aggregate direct and indirect costs associated with running coal plants as load-following units have not yet been quantified in large-scale studies on a sector-wide basis, largely due to differences in how specific equipment responds to output fluctuations. Due to findings from the hourly generation data analysis and the high degree of potential impact on coal plant equipment, the study suggests the development of a new modeling tool that will represent the costs of running coal-fired power plants at lower capacity factors.
机译：在过去的十年中，有几个因素导致了煤炭发电量的下降，而且预测预测，未来几年风能和太阳能技术的增长率将很高。该分析使用来自大型燃煤电厂的每小时发电数据来确定近年来的运行方式，并描述了这些变化对电厂设备和机组可靠性的影响。数据显示日间发电量的可变性增加，几乎影响样品中的所有单位，但增加幅度在植物之间差异很大。考察了中断模式，以及一个地区的可再生能源增长与燃煤电厂运营变化之间的关系。在整个行业的大规模研究中，尚未将与作为负荷跟踪单位的燃煤电厂运营相关的直接和间接总成本进行量化，这在很大程度上是由于特定设备对产出波动的反应方式不同所致。由于每小时发电量数据分析的结果以及对燃煤电厂设备的高度潜在影响，该研究建议开发一种新的建模工具，该工具将代表在较低容量系数下运行燃煤电厂的成本。

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