OPERATION OF A POWER UNIT AS A PEAK UNIT AND ITS IMPACT ON THE ECONOMY AND RELIABILITY OF THE POWER SYSTEM
Journal Title: Prace Instytutu Metalurgii Żelaza - Year 2018, Vol 70, Issue 3
Abstract
Wind power plants are at the forefront of the development of renewable energy sources (RES) but their operation depends on changing weather conditions. Favouring energy obtained from renewable sources forces the operation of conventional energy as a regulator balancing the system’s demand. Coal-fired power units were designed for continuous operation and their efficiency decreases if they are used as peak units. The increased number of start-ups and frequent fluctuations in the generated power lead in the long run to the accumulation of consumption processes such as thermal fatigue and cracking. Another noticeable effect is also the decrease in reliability indicators and increased operating costs associated with expensive start-ups. The paper presents an estimation of operating costs related to more frequent start-ups of a power unit. The impact of the deterioration of reliability indicators on the production capacity of a single power plant as well as the reliability of the entire system was also analysed.
Authors and Affiliations
Andrzej Rusin, Adam Wojaczek
Keywords
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- EP ID EP432177
- DOI 10.32730/imz.0137-9941.18.3.06
- Views 94
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