Gramian-based reduction method applied to large sparse power system descriptor models

FD Freitas, J Rommes, N Martins - IEEE Transactions on Power …, 2008 - ieeexplore.ieee.org
This paper presents an efficient linear system reduction method that computes
approximations to the controllability and observability gramians of large sparse power …

[HTML][HTML] Reviewing the large electrical network equivalent methods under development for electromagnetic transient studies in the Brazilian Interconnected power …

TM Campello, FNF Dicler, SL Varricchio… - International Journal of …, 2023 - Elsevier
This paper presents a qualitative overview of the main developments carried out by the
Brazilian Electrical Energy Research Center and the Brazilian Power System Operator to …

A sequential conic programming approach for the coordinated and robust design of power system stabilizers

RA Jabr, BC Pal, N Martins - IEEE Transactions on Power …, 2010 - ieeexplore.ieee.org
This paper shows that conic programming is an effective tool to solve robust power system
stabilizer (PSS) design problems, namely coordinated gain tuning and coordinated phase …

Efficient computation of multivariable transfer function dominant poles using subspace acceleration

J Rommes, N Martins - IEEE transactions on power systems, 2006 - ieeexplore.ieee.org
This paper describes a new algorithm to compute the dominant poles of a high-order
multiple-input multiple-output (MIMO) transfer function. The algorithm, called the Subspace …

Reduced-order model for wind-solar multi-microgrids considering time-scale coupling

Z Zhao, J Wu, X Luo, J Xie, Q Yang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A computationally efficient and accurate reduced-order model (ROM) that characterizes the
time-scale coupling caused by the high penetration of power-electronic converters in …

Computing rightmost eigenvalues for small-signal stability assessment of large-scale power systems

J Rommes, N Martins, FD Freitas - IEEE transactions on power …, 2009 - ieeexplore.ieee.org
Knowledge of the rightmost eigenvalues of system matrices is essential in power system
small-signal stability analysis. Accurate and efficient computation of the rightmost …

Practical challenges in data‐driven interpolation: dealing with noise, enforcing stability, and computing realizations

Q Aumann, IV Gosea - … Journal of Adaptive Control and Signal …, 2023 - Wiley Online Library
In this contribution, we propose a detailed study of interpolation‐based data‐driven methods
that are of relevance in the model reduction and also in the systems and control …

Robust and coordinated tuning of power system stabiliser gains using sequential linear programming

RA Jabr, BC Pal, N Martins, JCR Ferraz - IET generation, transmission & …, 2010 - IET
This study presents a linear programming (LP)-based multivariable root locus following
technique for coordinating the gain settings of power system stabilisers (PSSs). The …

Robust design of a TCSC oscillation damping controller in a weak 500-kV interconnection considering multiple power flow scenarios and external disturbances

AM Simões, DC Savelli, PC Pellanda… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
The power oscillation damping (POD) controllers implemented in the two thyristor controlled
series compensators of the Brazilian North-South (NS) interconnection, in the year 1999 …

Computing large-scale system eigenvalues most sensitive to parameter changes, with applications to power system small-signal stability

J Rommes, N Martins - IEEE transactions on power systems, 2008 - ieeexplore.ieee.org
This paper describes a new algorithm, named the sensitive pole algorithm, for the automatic
computation of the eigenvalues (poles) most sensitive to parameter changes in large-scale …