Operation and control of a hybrid power plant with the capability of grid services provision

Ayman B. Attya, Adam Vickers

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The integration of distributed power plants that rely on renewable energy sources (RESs) is a major challenge for system operators (SOs) due to the variable nature of the input energy (e.g., wind and solar irradiation) to these power sources. A key solution to such a challenge is to coordi-nate and combine the power generation of these sources such that their behavior is closer to a conventional and dispatchable power station, taking into account the limitations imposed by the battery storage system (BESS), so it is seen as a hybrid power plant (HPP) from the SOs’ viewpoint. This paper develops a model of HPP that encompasses two generation technologies, wind and photo-voltaic farms, which are assisted by a BESS. The paper proposes a comprehensive control method that can smooth the HPP output with minimized energy rejection whilst enabling the HPP to pro-vide synthetic inertia and primary frequency response, which are grid‐code compliant. The proposed control method is validated through various scenarios, which are implemented on a detailed electromechanical test system modeled in MATLAB/Simulink. The results show and quantify the achieved improvement on stabilizing the HPP capacity factor under variable wind speed. The HPP also enhances the system response to frequency events.

Original languageEnglish
Article number3928
Number of pages15
JournalEnergies
Volume14
Issue number13
Early online date30 Jun 2021
DOIs
Publication statusPublished - 1 Jul 2021

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