On the Estimation of Power System Inertia accounting for Renewable Generation Penetration

Donnini, Giacomo; Carlini, Enrico Maria; Giannuzzi, Giorgio Maria; Zaottini, Roberto; Pisani, Cosimo; Chiodo, E.; Lauria, D.; Mottola, Fabio

doi:10.23919/aeit50178.2020.9241204

Cited by 9 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inertia-less status of VG sources reduces the effective grid inertia as VG sources replace the legacy synchronous generators (SGs) in the power grid [3]. Reduced grid inertia results in frequency stability challenges such as a faster rate of change of frequency (RoCoF) and lower instantaneous frequency (frequency nadir) in the event of a contingency [4]. Grid inertia allows the power system to resist changes in Bulletin of Electr Eng & Inf ISSN: 2302-9285 …”

Section: Introductionmentioning

confidence: 99%

Improving frequency regulation for future low inertia power grids: a review

Wamukoya,

Muriithi,

Kaberere

2024

Bulletin EEI

View full text Add to dashboard Cite

The modern power system is witnessing an unprecedented increase in the penetration of renewable variable generation (VG) sources. Increased uptake of converter interfaced VG like solar PV and wind power while replacing conventional synchronous generators (SGs) introduces new challenges to grid operators in terms of dynamically handling frequency stability and regulation. Reducing the number of SGs while increasing non-synchronous, inertia-less converter interfaced VG reduces grid natural inertia, which is critical for maintaining frequency stability. To cure inertia deficiency, researchers, broadly, have proposed implementing supplemental control strategies to VG sources or energy storage systems to emulate natural inertia (virtual inertia (VI)). Alternatively, VG sources can be operated below their maximum power point (deloaded mode), making available a reserve margin which can rapidly be deployed in case of a contingency with the help of power electronic devices, to provide fast frequency response. This paper reviews recent solutions proposed in literature to address the low inertia problem to improve frequency stability. Additionally, it highlights the formulation of an optimization problem for VI sizing and placement as well as techniques applied in solving the optimization problem. Finally, gaps in literature that require further research were identified

show abstract

Section: Introductionmentioning

confidence: 99%

Improving frequency regulation for future low inertia power grids: a review

Wamukoya,

Muriithi,

Kaberere

2024

Bulletin EEI

View full text Add to dashboard Cite

show abstract

“…The energy transition in progress and the consequent reduction of energy supply from fossil fuels is causing the divestment of traditional rotating generators in favour of energy sources that are interfaced to the electrical grid through power electronic converters. While this transformation leads to a reduction in CO 2 emissions, on the other hand, technical issues related to the operation of the electric power system are rising, due, in particular, to the reduction of the overall system inertia and primary reserve and to the aleatory nature of renewables that increase the risk of instability [1], [2]. Therefore, power converters must provide new services to maintain adequate level of security and service quality even in renewables dominated energy systems [3].…”

Section: Introductionmentioning

confidence: 99%

Grid-forming converters. A critical review of pilot projects and demonstrators

Musca¹,

Vasile²,

Zizzo³

2022

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

“…The energy transition towards sustainable sources is reducing the presence in the European generating system of traditional fuel-based plants in favor of renewable sources. While this transformation, on the one hand, has undeniable environmental advantages, it nevertheless poses some critical issues due to the uncertainty and intermittency of these sources, and to the significant reduction in the inertia of the system and the frequency containment reserve [1][2][3]. The documents recently published by ENTSO-E [4] highlight that the European electric power system needs some actions such as the development of new interconnections, the increase of the storage capacity, and new auxiliary services (e.g.…”

Section: Introductionmentioning

confidence: 99%