The influence of GUPFC FACTS device on small signal stability of the electrical power systems

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

et al. 2019

This paper presents a proposal for a coordinated adjustment of the parameters of supplementary damping controllers (Power System Stabilizers and Interline Power Flow Controller (IPFC)-Power Oscillation Damping (POD)) using the Multi-Start algorithm. The aim is to introduce additional damping to electromechanical oscillations present in electric power systems (EPSs). The current sensitivity model (CSM), is used to represent the EPS. The fundamental concept of the CSM is the nodal balance of currents at each time instant and in each bus of the power system. Thus, all devices and components of the EPS are modelled by current injection, including the IPFC. The solution is applied to a test system with 4 generators, 10 buses and 15 transmission lines divided into two areas with the presence of local and inter-area mode oscillations. The efficiency of the Multi-Start algorithm in adjusting the parameters of controllers can be concluded from the results. Resumo: Este artigo apresenta uma proposta para o ajuste coordenado dos parâmetros dos controladores suplementares de amortecimento (Estabilizadores do Sistema de Potência (ESP) e Interline Power Flow Controller (IPFC)-Power Oscillation Damping (POD)) usando o algoritmo Multi-Start. O objetivo é introduzir amortecimento adicional às oscilações eletromecânicas presentes nos sistemas elétricos de potência (SEP). O modelo de sensibilidade atual (MSC) é usado para representar o SEP. O conceito fundamental do MSC é baseado no balanço nodal das correntes em cada instante de tempo e em cada barra do sistema de potência. Assim, todos os dispositivos e componentes do SEP são modelados por injeção de corrente, incluindo o IPFC. A proposta é aplicada a um sistema teste com 4 geradores, 10 barras e 15 linhas de transmissão divididos em duas áreas e com a presença de oscilações de modo local e interárea. A eficiência do algoritmo Multi-Start no ajuste dos parâmetros dos controladores pôde ser concluída a partir dos resultados.

Section: Interline Power Flow Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning of the Parameters of PSS and IPFC-POD Controllers Using the Current Sensitivity Model

Fortes

Possagnolo

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

et al. 2019

“…IPFC FACTS device is based on voltage source controller (VSC) which mainly compensate and manage power flow (active and reactive) in multiple lines. As a result, voltage profile improves in the surrounding area of FACTS device installation [7].…”

Section: Introductionmentioning

confidence: 99%

PSS AND IPFC POD controllers coordinated tuning by an Adaptive Genetic Algorithm with Hyper-mutation

Bautista

2018

TEC

Flexible AC transmission systems (FACTS) are a modern technology to increase controllability in power systems. This work presents an analysis of Interline Power Flow Controller (IPFC) which is a FACTS device. This device control and manage power flow in transmission lines. Supplementary damping controller is installed on IPFC Proportional Integral (PI) control. Power Oscillation Damping (POD) and Power System Stabilizers (PSS) contribute to power system stability. This works represents the electric power system and Interline Power Flow Controller FACTS device by a current sensitivity model (CSM). This work focuses on small-signal stability studies using an Adaptive Genetic Algorithm and Hyper-mutation (AGAH) to design simultaneously controller parameters. Adaptive Genetic Algorithm aims to find optimal controller parameters to enhance greatly stability of the power system. This paper considers two areas 14 bus symmetrical system in order to assess proposed algorithm. Simulations are carried out in MatLab platform in order to compare genetic algorithm with proposed algorithm performance. Results show AGAH outweighed AG by time convergence and accuracy.

“…The correct parameterization of the supplementary controllers is fundamental for damping the low-frequency oscillations to guarantee the stability of the power system. Several approaches have been successfully used to achieve this goal, including the residue method (Yang et al 1998), the Nyquist stability criterion (Zhenenko and Farah 1984), and the decentralized modal control (DMC) method (Furini et al 2011;Valle and Araujo 2015). The coordinated and simultaneous tuning of these controllers is a complex optimization problem with multiple local minima.…”

Section: Introductionmentioning

confidence: 99%

Design of the PI–UPFC–POD and PSS Damping Controllers Using an Artificial Bee Colony Algorithm

Martins

J Control Autom Electr Syst

Fortes

et al. 2017

This paper presents two variations of the artificial bee colony (ABC) algorithm, the classical and a modified version, called GBest, for the design of the proportional-integral and supplementary damping controllers: power system stabilizers and the unified power flow controller (UPFC)-power oscillation damping set. The objective is to insert additional damping to the low-frequency oscillation modes present in multimachine electrical power systems, to guarantee the small-signal stability of the system considering different loading conditions. A new current injection formulation for the UPFC is proposed and incorporated into the current sensitivity model used to represent the dynamical operation of the electric power system. Static and dynamical analysis were performed for the New England system to validate the proposed formulation and to evaluate the performance of the optimization algorithms. The results indicate that the modi-B Luís Fabiano Barone Martins