Increasing Technical Efficiency of Renewable Energy Sources in Power Systems
Автор
Smolarz, A.
Lezhniuk, P.
Kudrya, S.
Komar, V.
Lysiak, V.
Hunko, I.
Amirgaliyeva, S.
Smailova, S.
Orazbekov, Z.
Лежнюк, П. Д.
Комар, В. О.
Гунько, І. О.
Дата
2023Metadata
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- Наукові роботи каф. ЕСС [341]
Аннотации
This paper presents a method for refining the forecast schedule of renewable energy sources
(RES) generation by its intraday adjustment and investigates the measures for reserving RES with unstable generation in electric power systems (EPSs). Owing to the dependence of electricity generation
by solar and wind power plants (PV and WPPs, respectively) on natural conditions, problems arise
with their contribution to the process of balancing the power system. Therefore, the EPS is obliged
to keep a power reserve to compensate for deviations in RES from the planned generation amount.
A system-wide reserve (mainly the shunting capacity of thermal and hydroelectric power plants) is
used first, followed by other means of power reserve: electrochemical, hydrogen, or biogas plants.
To analyze the technical and economic efficiency of certain backup means, mathematical models
based on the theory of similarity and the criterion method were developed. This method is preferred
because it provides the ability to compare different methods of backing up RES generation with each
other, assess their proportionality, and determine the sensitivity of costs to the capacity of backup
methods with minimal available initial information. Criterion models have been formed that allow
us to build dependencies of the costs of backup means for unstable RES generation on the capacity
of the backup means. It is shown that, according to the results of the analysis of various methods
and means of RES backup, hydrogen technologies are relatively the most effective. The results of the
analysis in relative units can be clarified if the current and near-term price indicators are known.
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http://ir.lib.vntu.edu.ua//handle/123456789/38264