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Integration of large-scale photovoltaic power plants is increasing significantly in many develop and developing countries. Although photovoltaic (PV) plants are renewable and environmental friendly, they can bring negative impact in the form of low frequency oscillation due to the uncertainty of power output and negligible inertia. Hence, battery energy storage systems (BESSs) are becoming an inevitable...
This work investigates the impact of increased penetration of doubly fed induction generators (DFIGs) on electromechanical modes of oscillations of a large interconnected power system. The work proposes a control mechanism aimed at designing the power system stabilizer (PSS) for a DFIG similar to the PSS of synchronous machines. The wind generator power output is taken as input to the PSS. The active...
In this paper, the network damping capability of DFIG-based wind farm is investigated. A simple network damping strategy with two auxiliary power system stabilizer (PSS) loops is proposed. The dynamics of the flexible rotor shaft-blades are also taken into account for this study since the possible interaction may occur between the network oscillation mode and the torsional oscillation mode. Both small...
In this paper, conventional power system stabilizer (CPSS) is designed to damp electromechanical oscillations. CPSS parameters settings are computed using linear control theory. A new technique based on Genetic Algorithms (GAs) is proposed to optimize the parameters settings of CPSS. The problem is formulated as an optimization problem, the objective is to compute the optimal parameters settings such...
In this paper, conventional lead-lag power system stabilizer (CPSS) is designed to damp electromechanical oscillations. CPSS parameters settings are computed using linear control theory. A new technique based on particle swarm optimization PSO is proposed to optimize the parameters settings of CPSS. The problem is formulated as an optimization problem, the objective is to compute the optimal parameters...
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