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