Review of challenges and research opportunities for voltage control in smart grids

H Sun, Q Guo, J Qi, V Ajjarapu, R Bravo… - … on Power Systems, 2019 - ieeexplore.ieee.org
In this paper, we review the emerging challenges and research opportunities for voltage
control in smart grids. For transmission grids, the voltage control for accommodating wind …

A review on TSO-DSO coordination models and solution techniques

AG Givisiez, K Petrou, LF Ochoa - Electric Power Systems Research, 2020 - Elsevier
The volume of services procured by transmission system operators (TSOs) through
distribution-connected resources, aka distributed energy resources (DER), has been …

Ancillary services market design in distribution networks: Review and identification of barriers

K Oureilidis, KN Malamaki, K Gallos, A Tsitsimelis… - Energies, 2020 - mdpi.com
The high proliferation of converter-dominated Distributed Renewable Energy Sources
(DRESs) at the distribution grid level has gradually replaced the conventional synchronous …

Determination of the time-dependent flexibility of active distribution networks to control their TSO-DSO interconnection power flow

DM Gonzalez, J Hachenberger, J Hinker… - 2018 Power Systems …, 2018 - ieeexplore.ieee.org
This paper describes an approach to estimate the flexibility of an Active Distribution Network
(ADN) to provide ancillary services across voltage levels by the regulation of the power flow …

Improved assessment of the flexibility range of distribution grids using linear optimization

DA Contreras, K Rudion - 2018 Power Systems Computation …, 2018 - ieeexplore.ieee.org
Increasing use of flexible resources in electrical grids is forcing grid operators to intensify
their cooperation to maintain grid stability. The contribution of this paper is the improvement …

The challenges of low voltage distribution system state estimation—an application oriented review

I Táczi, B Sinkovics, I Vokony, B Hartmann - Energies, 2021 - mdpi.com
Global trends such as the growing share of renewable energy sources in the generation mix,
electrification, e-mobility, and the increasing number of prosumers reshape the electricity …

Survey and comparison of optimization-based aggregation methods for the determination of the flexibility potentials at vertical system interconnections

M Sarstedt, L Kluß, J Gerster, T Meldau, L Hofmann - Energies, 2021 - mdpi.com
The aggregation of operational active and reactive power flexibilities as the feasible
operation region (FOR) is a main component of a hierarchical multi-voltage-level grid control …

Review of methodologies for the assessment of feasible operating regions at the TSO–DSO interface

G Papazoglou, P Biskas - Energies, 2022 - mdpi.com
The Feasible Operating Region (FOR) is defined as a set of points in the PQ plane that
includes all the feasible active and reactive power flows at the Transmission System …

Monetarization of the feasible operation region of active distribution grids based on a cost-optimal flexibility disaggregation

M Sarstedt, L Hofmann - IEEE Access, 2022 - ieeexplore.ieee.org
Hierarchical grid control strategies are an appropriate design concept for the coordination of
future transmission system operator (TSO) and distribution system operator (DSO) …

Reactive power provision by the DSO to the TSO considering renewable energy sources uncertainty

T Soares, L Carvalho, H Morais, RJ Bessa… - … Energy, Grids and …, 2020 - Elsevier
The current coordination between the transmission system operator (TSO) and the
distribution system operator (DSO) is changing mainly due to the continuous integration of …