A strategy to simultaneously tune power system stabilizers

Ramı́rez, Juan M.; Correa, Rosa E.; Hernández, Darwin

doi:10.1016/j.ijepes.2012.06.025

Cited by 23 publications

(12 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is important to point out that the method proposed by Peres et al 13 is based on metaheuristic optimization, a class of methods that have been widely used in the literature for MB-PSS tuning. 13,46,48,49,50,51,52 Therefore, there is an agreement that these methods have a great potential to the real-world application due to their powerful search capabilities, in despite their randomness and computational effort.…”

Section: Design Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

A pole placement approach for multi‐band power system stabilizer tuning

Peres

Coelho

Costa

2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Low-frequency electromechanical oscillations is a topic of great concern in power system operation. Undamped oscillations reduce the power transfer capacity and can lead the system to blackouts. Since the 70s, synchronous generators operate with power system stabilizers that add damping torque to oscillations through the excitation system control. These controllers can have either a conventional fixed structure, composed by stages of gain and phase compensation, or a multi-band structure (MB-PSS), composed by three bands that correspond to a specific frequency range (low, intermediate and high frequency). In the MB-PSS structure, each band consists of two branches based on differential filters (with a gain stage and lead-lag blocks). This paper presents an approach based on the Newton-Raphson method for tuning MB-PSS for power systems taking into consideration several operating conditions to ensure robustness. The approach adjusts the controller's gains to place a set of poles into a region in the complex plane with a desired damping ratio. Firstly, the method is applied to the well-known single-machine infinite bus system represented by the Heffron-Phillips model. Secondly, an application to the multimachine South-Southeastern Brazilian power system is discussed considering different operating conditions. The convergence of the proposed approach is evaluated regarding the initial conditions, the desired damping ratio, and the set of monitored poles. Linear and nonlinear time-domain simulations validate the designed controllers. Finally, it is shown that the computational effort required by the proposed approach is lower than the one required by a class of methods widely reported in the literature for MB-PSS design. List of symbols and abbreviations: FACTS, flexible alternating current transmission systems; LFO, low-frequency oscillations; MB-PSS, multi-band power system stabilizer; PSS, power system stabilizer; PSS2B, stabilizer based on the integral acceleration power; PSS4B, multi-band power system stabilizer; STATCOM, static synchronous compensator; SVC, static Var compensator; Var, volt-ampere reactive; WADC, wide-area damping control; ΔU REF , reference voltage of the excitation system (pu); ΔU PSS , supplementary stabilizing signal (MB-PSS output) (pu); K a , gain of the excitation system (pu); R s , reactance of the stator (pu); T a , time constant of the excitation system; T 0 d0 , d-axis transient open circuit time constant of generator (s); X d , d-axis synchronous reactance of generator (pu); X 0 d , d-axis transient reactance of generator (pu); X q , q-axis synchronous reactance of generator (pu); f e , electric frequency (Hz); ξ d , desired damping ratio; ξ min , minimum damping ratio; ΔE FD , field voltage (exciter output) of generator (pu); ΔE 0 q , internal voltage of generator (pu); Δu, input variables vector; Δx, state variables vector; Δy, output variables vector; Δδ, internal angle of generator (rad); Δω pu , rotor speed deviation of generator (pu); ABCD, state, input, output, and feed-forwar...

show abstract

Section: Design Proceduresmentioning

confidence: 99%

“…In this case, there are six parameters to tune a MB-PSS. Most approaches that can be found in the literature are based on optimization techniques: analytical methods, 45,47 metaheuristics, 48,49,50,51,52 and hybrid metaheuristics. 13 After a brief review of the existing literature, it can be seen the importance of the development of methods to design MB-PSS.…”

mentioning

confidence: 99%

A pole placement approach for multi‐band power system stabilizer tuning

Peres

Coelho

Costa

2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…However, power transfers across key interties of the system are currently limited to a great extent by dynamic stability constraints (Messina et al, 2003;Ramírez et al, 2012), since the loss of critical transmission lines and major generators can result in undamped interarea oscillations.…”

Section: General Description Of the System Structurementioning

confidence: 99%

Improvement of the dynamic behavior of large-scale power systems by using robust power system stabilizers based on fuzzy logic

Ramírez¹,

Castellanos²

2015

ing.inv.

View full text Add to dashboard Cite

In this paper, the effect of fuzzy logic-based robust power system stabilizers on the improvement of the dynamics of a large-scale power system is investigated. The study is particularly focused on the Mexican Interconnected System and on adding damping to two critical inter-area system oscillation modes: the north-south mode and the western-peninsular mode. The fuzzy power system stabilizers (FPSSs) applied here are based on a significantly reduced rule base, small number of tuning parameters, and simple control algorithm and architecture, which makes their design and implementation easier and suitable for practical applications. Non-linear time-domain simulations for a set of test cases and results from Prony Analysis verify the robustness of the designed FPSSs, as compared to conventional PSSs.Keywords: Large-scale power systems, inter-area oscillations, power system stabilizer, fuzzy logic. RESUMENEn el presente trabajo se investiga el efecto de estabilizadores de sistemas de potencia (PSSs) robustos, basados en lógica difusa, para mejorar la dinámica de sistemas de potencia complejos. En particular, el estudio se enfoca en mejorar el amortiguamiento de dos modos críticos de oscilación interárea del Sistema Interconectado Mexicano. Los PSSs difusos utilizados aquí se caracterizan por una base de reglas difusas reducida, pocos parámetros de sintonización y una arquitectura y algoritmo de control simples, lo cual facilita su diseño, implementación y aplicación práctica. Simulaciones en el dominio del tiempo con diversos escenarios de prueba y la aplicación del método de Prony comprueban la robustez de los PSSs difusos en comparación con PSSs convencionales.Palabras clave: Sistemas de potencia complejos, oscilaciones interárea, estabilizador de sistemas de potencia, lógica difusa.

show abstract

“…A new hybrid DE algorithm, called gradual self-tuning hybrid DE, is developed in [28] for rapid and efficient searching of an optimal set of PSS parameters. A DE algorithm is employed in [29] to tune multiband PSSs in a portion of the high voltage Mexican power grid.…”

Section: Introductionmentioning

confidence: 99%