Abstract
The paper presents a novel, simple, variable structure, self adjusting, squashable error-driven, adjustable gain power system stabilizer (PSS) design. The elastic error-driven and error-scaled PSS design falls in between the categories of bang-bang and linear error scaled variable gain. The digital simulation studies were conducted on a single machine infinite bus system. From the digital simulation results, the proposed PSS is shown to be very effective in damping the oscillations and it is robust as it tolerates any system structural and parametric variations. In addition, the proposed PSS can be easily implemented. The design was simulated and tested using MATLAB simulation package software and compared to conventional analog gain/lead/lag compensator PSS design.
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