Abstract
Power system stabilizers (PSSs) using electrical and accelerating power as supplementary signals are compared. The effect on terminal voltage and volt-ampere reactive, offset and damping of a simulated single-machine-infinite-bus system is investigated. The results show that the damping offered by a PSS using accelerating power and electrical power feedback is very similar even in the presence of large mechanical power disturbances. The benefits of accelerating power over electrical power as the supplementary signal to the PSS are not evident in the simulation studies considered. Considering the relative ease of measuring the electrical power signal compared to accelerating power signal, it is concluded that a PSS using electrical power as a supplementary signal is sufficient for damping rotor oscillations. Frequency response data are shown to support this point of view.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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