[HTML][HTML] Inertia estimation of synchronous devices: Review of available techniques and comparative assessment of conventional measurement-based approaches

SC Dimoulias, EO Kontis, GK Papagiannis - Energies, 2022 - mdpi.com
The increasing deployment of renewable energy sources (RESs) reduces the inertia levels
of modern power systems, raising frequency stability issues. Therefore, it becomes crucial …

[HTML][HTML] Ancillary services offered by distributed renewable energy sources at the distribution grid level: An attempt at proper definition and quantification

CS Demoulias, KND Malamaki, S Gkavanoudis… - Applied Sciences, 2020 - mdpi.com
The gradual displacement of synchronous generators driven by conventional power plants,
due to the increasing penetration of distributed renewable energy sources (DRES) in …

Provision of primary frequency response as ancillary service from active distribution networks to the transmission system

EO Kontis, ÁR del Nozal, JM Mauricio… - … on Smart Grid, 2021 - ieeexplore.ieee.org
This paper deals with the provision of primary frequency response (PFR) as ancillary service
(AS) from active distribution networks (ADNs) to the transmission system (TS). In particular …

Dynamic equivalent model of active distribution networks providing frequency-related ancillary services to the transmission system

EO Kontis, AR del Nozal, SC Dimoulias, JM Mauricio - Applied Energy, 2024 - Elsevier
Nowadays, due to the large integration of converter-interfaced renewable energy sources
(CI-RES), distribution networks progressively transform into active components of power …

A Tutorial on Resilience in Smart Grids

A Stocker, H de Meer - 2022 12th International Workshop on …, 2022 - ieeexplore.ieee.org
A key quality of any kind of system is its ability to deliver its respective service correctly. Often
the unavailability of commercial systems may lead to lost revenue, which are minor …

An adaptive multi‐mode switching control strategy to improve the stability of virtual synchronous generator with wide power grid strengths variation

Z Liu, L Qin, Y Zhou, X Lei, C Huangfu… - IET Generation …, 2023 - Wiley Online Library
With the increasing proportion of renewable power generations in the power system, the
power grid impedance may fluctuate greatly, and it is difficult for the virtual synchronous …

On-line tracking of inertia constants using ambient measurements

SC Dimoulias, EO Kontis, GK Papagiannis - Electric Power Systems …, 2023 - Elsevier
In this paper, a new method for on-line inertia estimation is developed. The proposed
method is based on the sliding window concept and uses ambient responses, ie, responses …

[HTML][HTML] Inertia identification and analysis for high-power-electronic-penetrated power system based on measurement data

Z Xu, J Ma, Y Gao, Y Li, H Yu, L Wang - Energies, 2023 - mdpi.com
With the gradual increases in the use of wind power and photovoltaic generation, the
penetration rate of power electronics has increased in recent years. The inertia …

Virtual inertia provision from distribution power systems using machine learning

S Stock, D Babazadeh, C Becker - Big Data Application in Power Systems, 2024 - Elsevier
This chapter focuses on the application of physics-informed neural networks (PINNs),
Bayesian physics-informed neural networks (BPINNs), and reinforcement learning (RL) in …

Reinforcement Learning based Coordination of Virtual Inertia Provision from Inverter-dominated Distribution Grids

S Stock, D Babazadeh, P Hund… - 2023 IEEE 32nd …, 2023 - ieeexplore.ieee.org
To achieve the goals of carbon neutrality in the energy sector, inverter-coupled renewable
energy sources play an important role. In contrast to conventional generation, they are …