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This paper aims to improve the extended complex Kalman filter (ECKF) for tracking inter-area oscillations from power system response signals. A robustness function is incorporated into the ECKF algorithm, to improve tracking performance on signals with outliers. The improved ECKF identifier (IECKF) is demonstrated on response signals from the simplified 59 bus South East Australian test system. The...
Power system oscillations are inherent phenomena of power system. Inadequate damping can cause sustained power oscillation in the network. These oscillations can be reducing using supplementary control of existing flexible AC transmission devices. This controller, if robustly tuned, can provide sufficient damping on a wide range of operating conditions. Moreover, with the recent development in wide...
Low-frequency inter-area oscillations are threat to secure operation of power systems. Power system stabilizer and Power oscillation damping controllers are used to provide damping to oscillatory modes. Such oscillatory modes, inter-area modes in particular, are significantly affected by change in operating conditions and load characteristics. In this paper, influence of load characteristics on performance...
Selection of proper feedback signal for power system damping controller is vital to enhance its performance. In this paper, three different methods are evaluated to select the most effective signal to damp power system oscillations. The damping is obtaining by modulating power electronic device of the system. It is shown that how different feedback signal affects the performance of power system damping...
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