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Design of Power System Stabilizer Using Computational Methods (Paperback)
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Design of Power System Stabilizer Using Computational Methods (Paperback)
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Over the past decades, the issue of low frequency oscillations has
been of major concern to power system engineers.These oscillations
range from 0.1 to 3Hz and tend to be poorly damped especially in
systems equipped with high gain fast acting AVRs and highly
interconnected networks.If these oscillations are not adequately
damped, they may sustain and grow, which may lead to system
separation and loss of power transfer.As a means to alleviate such
problems of low damping in power systems, Power System Stabilizer
(PSS) has been proposed.PSS produces a component of the electrical
torque in phase with the rotor speed deviations, thus adding
damping to the generators rotor oscillation.Results obtained in
this work could be improved by carefully tuning the PSSs by
including small and large disturbances conditions, within the
objective function. It was found that a high gain value of the PSS
slightly negatively affected the initial oscillations after the
fault application. The initial oscillations have higher amplitudes
due to the high gains. It is also suggested that the optimal
locations of the PSS be considered within the optimization,
especially for a Multi-machine syste
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