Design of Robust UPFC Based Damping Controller Using Biogeography Based Optimization

2016 ◽  
Vol 2 (3) ◽  
pp. 554
Author(s):  
S.Ali Abbas Al-Mawsawi ◽  
Anwer Haider ◽  
S.Ahmed Al-gallaf
Keyword(s):  
Power Flow ◽  
Low Frequency ◽  
Unified Power Flow Controller ◽  
Low Frequency Oscillation ◽  
Power Oscillation ◽  
Wide Range ◽  
Power Oscillation Damping ◽  
Oscillation Damping ◽  
Power Flow Controller ◽  
Operating Points

<p>In this paper a new optimization algorithm, the biogeography based optimization (BBO) is employed to design a robust power oscillation damping (POD) controller using unified power flow controller (UPFC). The controller that is used to damp low frequency oscillation is designed over a wide range of operating points using two different objective functions. The obtained controllers are then verified through time-domain simulation over different loading conditions with different system uncertainties introduced.</p>

scholarly journals Estudo das limitações impostas ao amortecimento de oscilações eletromecânicas pelos zeros da FTMA de controladores suplementares

2012 ◽  
Vol 23 (2) ◽  
pp. 190-201 ◽  
Author(s):  
Ricardo Frangiosi de Moura ◽  
Marcos Amorielle Furini ◽  
Percival Bueno de Araujo
Keyword(s):  
New England ◽  
Power Flow ◽  
Unified Power Flow Controller ◽  
Power Oscillation ◽  
Power Oscillation Damping ◽  
Flow Controller ◽  
Oscillation Damping ◽  
Power Flow Controller

O principal objetivo deste trabalho é analisar a influência de diferentes sinais de entrada para controladores suplementares de amortecimento (POD - Power Oscillation Damping) na localização e controle de dispositivos FACTS UPFC (Unified Power Flow Controller), visando o amortecimento de oscilações de baixa frequência no Sistema Elétrico de Potência (SEP). Serão analisados três sinais de entrada, sendo dois sinais localmente disponíveis (corrente elétrica e fluxo de potência ativa na linha de instalação do UPFC) e um sinal remoto (velocidade angular). Para este fim, o Modelo de Sensibilidade de Potência (MSP) é utilizado para a representação do SEP. De maneira usual, uma análise de sensibilidade, através do método dos resíduos, fornece a localização para instalação do conjunto UPFC/POD e o procedimento para ajuste dos parâmetros do controlador para o amortecimento de um polo de interesse. Entretanto, será mostrado neste trabalho que devido à proximidade de algum zero ao polo de interesse, 0 maior resíduo não necessariamente fornecerá a melhor localização para o conjunto UPFC/POD, fato verificado com maior incidência quando da utilização de sinais locais para a entrada dos controladores. Análises comparativas da eficiência dos sinais de entrada para o POD são apresentadas para o sistema New England composto por 10 geradores, 39 barras e 46 linhas de transmissão.

scholarly journals Power System Oscillation Damping Using New Facts Device

2015 ◽  
Vol 5 (2) ◽  
pp. 198
Author(s):  
D. Narasimha Rao ◽  
V. Saritha
Keyword(s):  
Power Flow ◽  
Low Frequency ◽  
Current Control ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Basic Model ◽  
Steady State Operation ◽  
Wide Range ◽  
Power Oscillation Damping ◽  
Oscillation Damping

This paper presents about improving stability of the system which can be possible with new FACTS device with more convenient. FACTS devices come under the influence of power electronics equipment. Distributed Power Flow Controller is a FACTS device used for damping low frequency oscillation with new controlling approach. It is valid for a wide range of the operating condition. In this work explain the basic model and its steady state operation, mathematical analysis injection of current control model of the DPFC. Using damping controller used in DPFC facts device as input to implement the task of power oscillation damping .Here this work had a brief study on damping, terminal voltage and excitation voltage at different load conditions, simulation results demonstrate damping low frequency oscillation at nominal, light and heavy loading conditions

scholarly journals Enhancing Oscillation Damping in an Interconnected Power System with Integrated Wind Farms Using Unified Power Flow Controller

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 322 ◽  
Author(s):  
Ping He ◽  
Seyed Arefifar ◽  
Congshan Li ◽  
Fushuan Wen ◽  
Yuqi Ji ◽  
...  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Time Domain ◽  
Power Flow ◽  
Unified Power Flow Controller ◽  
Time Domain Simulation ◽  
Interconnected Power System ◽  
Dynamic Time ◽  
Oscillation Damping ◽  
Power Flow Controller

The well-developed unified power flow controller (UPFC) has demonstrated its capability in providing voltage support and improving power system stability. The objective of this paper is to demonstrate the capability of the UPFC in mitigating oscillations in a wind farm integrated power system by employing eigenvalue analysis and dynamic time-domain simulation approaches. For this purpose, a power oscillation damping controller (PODC) of the UPFC is designed for damping oscillations caused by disturbances in a given interconnected power system, including the change in tie-line power, the changes of wind power outputs, and others. Simulations are carried out for two sample power systems, i.e., a four-machine system and an eight-machine system, for demonstration. Numerous eigenvalue analysis and dynamic time-domain simulation results confirm that the UPFC equipped with the designed PODC can effectively suppress oscillations of power systems under various disturbance scenarios.

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