Ancillary services in active distribution networks: A review of technological trends from operational and online analysis perspective

GC Kryonidis, EO Kontis, TA Papadopoulos… - … and Sustainable Energy …, 2021 - Elsevier
Originally, ancillary services (ASs) were provided by large-scale power plants to ensure the
secure and reliable operation of power systems. However, with the advent of renewable …

Identification of electromechanical oscillatory modes based on variational mode decomposition

MRA Paternina, RK Tripathy, A Zamora-Mendez… - Electric Power Systems …, 2019 - Elsevier
Abstract This paper introduces Variational Mode Decomposition (VMD) to identify
electromechanical oscillatory modes in power systems. The identification process is based …

Coordinated optimal volt/var control for distribution networks via d-pmus and ev chargers by exploiting the eigensystem realization

GE Mejia-Ruiz, R Cárdenas-Javier… - … on Smart Grid, 2021 - ieeexplore.ieee.org
This article proposes a novel optimal hybrid control framework to improve the voltage profile
of highly unbalanced Distribution Grids (DGs) by coordinating the injection of reactive power …

[HTML][HTML] Model-free inertia estimation in bulk power grids through O-splines

D Rodales, A Zamora-Mendez, JA de la O Serna… - International Journal of …, 2023 - Elsevier
This paper proposes a novel methodology to precisely estimate the generation units' inertia
constant by using the wide-area monitoring systems (WAMS) information of bulk power …

Analyzing power oscillating signals with the O-splines of the discrete Taylor–Fourier transform

JA de la O Serna - IEEE Transactions on Power Systems, 2018 - ieeexplore.ieee.org
Power oscillating signals are analyzed with the Discrete Taylor-Fourier Transform (DTFT).
This is implemented by modulating the impulse responses of its low-pass differentiators …

Phasor estimation by EMD-assisted Prony

J Khodaparast, OB Fosso… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The use of synchronized measurement technology leads to a more reliable and secure
operation of the power system. Phasor calculation is needed for all buses where a phasor …

Coordinated design of PSS and unified power flow controller using the combination of CWT and prony methods with the help of SPEA II multi‐objective optimisation …

AH Naghshbandy, A Faraji - IET Generation, Transmission & …, 2019 - Wiley Online Library
Since the initial objective of power system stabiliser (PSS) units and flexible AC transmission
system (FACTS) devices is the dam** of inter‐area and local oscillations, it is very …

Bearing fault detection in induction motors using digital Taylor-Fourier transform

G Avalos, S Aguayo… - 2022 International …, 2022 - ieeexplore.ieee.org
Induction machines are the most used electric machines in the industry, and bearing
damage is their most common fault type. Although bearing damage can be localized or …

[HTML][HTML] Parameter identification of Sub-synchronous/Super-synchronous oscillations based on synchrophasor rotation and spectral shift

Y Wang, H Wang, Y Song, J Liao, C Guo… - International Journal of …, 2023 - Elsevier
Benefiting from the advantage of a unified time scale of measurement data from different
sites, the sub-synchronous oscillation (sub-SO) and super-synchronous oscillation (super …

Modal analysis of active distribution networks using system identification techniques

EO Kontis, TA Papadopoulos… - International Journal of …, 2018 - Elsevier
Mode identification from post-disturbance “ringdown” responses can provide vital
information concerning the dynamic performance and the stability margins of power …