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Article

Impact of Renewable Energy Sources on Power System Flexibility Requirements

1
Faculty of Automatics, Technical University of Sofia, 1000 Sofia, Bulgaria
2
National Dispatching Center at Electricity System Operator (ESO), 1618 Sofia, Bulgaria
*
Author to whom correspondence should be addressed.
Academic Editors: Andrea Mariscotti and George Kosmadakis
Energies 2021, 14(10), 2813; https://doi.org/10.3390/en14102813
Received: 29 March 2021 / Revised: 1 May 2021 / Accepted: 10 May 2021 / Published: 13 May 2021
(This article belongs to the Section K: State-of-the-Art Energy Related Technologies)
A power system can be defined as flexible if it can within economic and technological boundaries respond quickly and adequately to variations in supply and demand. The ongoing penetration of variable and intermittent renewable energy sources (RES) like wind and solar imposes additional and more critical requirement on power system flexibility. In this paper we propose a method to quantify these requirements based on the comparison of seven demand side parameters describing the statistical properties of the net load and the residual load of the referred power system. Each one of these parameters reflects a separate requirement on the available conventional generation in hourly and daily time scales—ramp up and ramp-down capabilities, technological minimum of generation, daily variation of generation. The proposed approach can be used to predict the requirements for generation flexibility according to the expected scenario of RES penetration in the future development of energy power system. It has been applied and integrated from the Bulgarian Transmission System Operator (TSO) which name is the Bulgarian Electricity System Operator (ESO). View Full-Text
Keywords: power system flexibility; variable and intermittent RES; demand-side parameters; net and residual load; hourly and daily time scales power system flexibility; variable and intermittent RES; demand-side parameters; net and residual load; hourly and daily time scales
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MDPI and ACS Style

Mladenov, V.; Chobanov, V.; Georgiev, A. Impact of Renewable Energy Sources on Power System Flexibility Requirements. Energies 2021, 14, 2813. https://doi.org/10.3390/en14102813

AMA Style

Mladenov V, Chobanov V, Georgiev A. Impact of Renewable Energy Sources on Power System Flexibility Requirements. Energies. 2021; 14(10):2813. https://doi.org/10.3390/en14102813

Chicago/Turabian Style

Mladenov, Valeri, Vesselin Chobanov, and Angel Georgiev. 2021. "Impact of Renewable Energy Sources on Power System Flexibility Requirements" Energies 14, no. 10: 2813. https://doi.org/10.3390/en14102813

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