Frequency Stability Evaluation in Low Inertia Systems Utilizing Smart Hierarchical Controllers

Autor: Anna Wakszyńska, Marialaura Di Somma, Giorgio Graditi, Minas Patsalides, Roberto Ciavarella, Christina N. Papadimitriou, Venizelos Efthymiou, Maria Valenti, Michał Kosmecki
Přispěvatelé: Patsalides, M., Papadimitriou, C. N., Efthymiou, V., Ciavarella, R., Di Somma, M., Wakszynska, A., Kosmecki, M., Graditi, G., Valenti, M.
Jazyk: angličtina
Předmět:
Control and Optimization
Computer science
020209 energy
media_common.quotation_subject
Disturbance conditions
Frequency stability
0211 other engineering and technologies
Distributed energy resources
Energy Engineering and Power Technology
Time horizon
02 engineering and technology
Inertia
lcsh:Technology
Frequency controller
7. Clean energy
Electric power system
0202 electrical engineering
electronic engineering
information engineering
Power grid
Electrical and Electronic Engineering
Engineering (miscellaneous)
media_common
021103 operations research
lcsh:T
Renewable Energy
Sustainability and the Environment
business.industry
Control engineering
Grid
Renewable energy
13. Climate action
Low inertia
Inverter
Distribution grid
business
frequency controller
frequency stability
low inertia
distributed energy resources
disturbance conditions
Energy (miscellaneous)
Zdroj: Energies
Energies, Vol 13, Iss 3506, p 3506 (2020)
Energies; Volume 13; Issue 13; Pages: 3506
ISSN: 1996-1073
DOI: 10.3390/en13133506
Popis: The high penetration of the Renewable Energy Sources and other emerging technologies likely to be installed in future power grids will pose new operational challenges to grid operators. One of the main issues expected to affect the operation of the power grid is the impact of inverter-based technologies to the power system inertia and, hence, to system stability. Consequently, the main challenge of the future grid is the evaluation of the frequency stability in the presence of inverter-based systems and how the aforementioned technology can support frequency stability without the help of the rotating masses of the traditional power grid systems. To assess the above problem, this paper proposes a methodology to evaluate the frequency stability in a projection of the real distribution grid in Cyprus with the time horizon to be the year 2030. The power grid under investigation is evaluated with and without the presence of smart hierarchical controllers for providing support to the power system under disturbance conditions. The advanced controllers were applied to manage the available power resource in a fast and effective manner to maintain frequency within nominal levels. The controllers have been implemented in two hierarchical levels revealing useful responses for managing low-inertia networks. The first is set to act locally within a preselected area and the second level effectively supporting the different areas for optimal operation. After undertaking a significant number of simulations for time-series of one year, it was concluded from the results that the local control approach manages to minimize the frequency excursion effectively and influence all related attributes including the rate of change of frequency (RoCoF), frequency nadir and frequency zenith.
Databáze: OpenAIRE
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