Abstract
The paper presents new design procedures for simultaneouslycoordinated designs of the Power System Stabilizer (PSS) and a Thyristor Controlled Series Capacitor that provided with Power Oscillation DampingController (TCSC-POD) in a Single Machine Infinite Bus (SMIB) power system. The coordinated designs problem between PSS and TCSC-POD controller implement with different loading conditions were converted to an optimization problem with the time domain-based objective function, which is solved by a Dolphin Echolocation Optimization (DEO) technique that has a strong ability to find an optimal result. The DEO has a few parameters easy to be set and leads to excellent results with low computational efforts. The results of this study show that proposed coordinated controller has reduced system response in terms of overshoot, settling time and confirmed the excellent capability of a proposed method in getting the satisfactory damping performance and enhance greatly the dynamic stability of power system. Moreover, the results revealed that the coordinated designed stabilizer demonstrates its superiority over their individual controllers PSS and TCSC–POD for improving damping characteristics of a SMIB power system at different loading conditions.
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