Modal analysis of power systems through natural excitation technique

JM Seppänen, J Turunen, M Koivisto… - … on Power Systems, 2014 - ieeexplore.ieee.org
The analysis of electromechanical oscillatory modes offers essential information on the
stability of power systems. This paper investigates the use of the natural excitation technique …

Compensation of CT distorted secondary current waveform in online conditions

F Haghjoo, MH Pak - IEEE Transactions on Power delivery, 2015 - ieeexplore.ieee.org
Current-transformer (CT) saturation phenomenon impacts the performance of the current-
based protective relays and leads them to malfunction; so detecting and resolving such …

A class of switching exploits based on inter-area oscillations

E Hammad, AM Khalil, A Farraj… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
This work presents a new class of cyber-physical switching attacks that targets power
transmission systems. The proposed approach relies on exciting inter-area oscillation …

Data-driven low frequency oscillation mode identification and preventive control strategy based on gradient descent

Y Fu, L Chen, Z Yu, Y Wang, D Shi - Electric Power Systems Research, 2020 - Elsevier
Accurate mode identification and effective preventive control strategy of low frequency
oscillation (LFO) are vital to improve the small signal stability of power system. This paper …

Novel approaches for online modal estimation of power systems using PMUs data contaminated with outliers

M Farrokhifard, M Hatami, M Parniani - Electric Power Systems Research, 2015 - Elsevier
One of the most important issues in modal estimation of power systems using PMUs data is
the negative effect of outliers. Hence, in addition to the techniques of analyzing PMUs data …

Bayesian approach in the modal analysis of electromechanical oscillations

J Seppänen, SK Au, J Turunen… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
This paper presents a Bayesian approach for identifying the modal parameters (ie,
frequency, damping ratio, and modal excitation) of electromechanical modes. The proposed …

Modal analysis of power systems with eigendecomposition of multivariate autoregressive models

JM Seppänen, LC Haarla… - 2013 IEEE Grenoble …, 2013 - ieeexplore.ieee.org
Analysis of electromechanical modes provides substantial information regarding the power
system stability. This paper introduces a novel approach to the measurement based modal …

Non-stationary stabilized fast transversal RLS filter for online power system modal estimation

M Setareh, M Parniani, F Aminifar - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Online monitoring of inter-area oscillations is a vital need for secure operation of large-scale
power systems. This paper aims at online estimation of inter-area modes by a novel …

Tuning out of phase: Resonance attacks

E Hammad, AM Khalil, A Farraj… - … Conference on Smart …, 2015 - ieeexplore.ieee.org
This work presents a new class of cyber-physical switching attacks of power transmission
systems. The proposed resonance attack relies on enhancing inter-area oscillation modes to …

Measurement based analysis of electromechanical modes with second order blind identification

J Seppänen, J Turunen, M Koivisto, L Haarla - Electric Power Systems …, 2015 - Elsevier
The Measurement based modal analysis is an effective tool for obtaining essential
information on the stability of power systems. This paper proposes a novel multivariate …