Fp. Demello et Jw. Feltes, VOLTAGE OSCILLATORY INSTABILITY CAUSED BY INDUCTION-MOTOR LOADS, IEEE transactions on power systems, 11(3), 1996, pp. 1279-1284
Isolated power systems which fit the structure of a single equivalent
generator supplying an equivalent composite load can experience a volt
age oscillatory instability entirely traceable to effects of induction
motor loads interacting with automatic voltage regulators. This scena
rio is one where an AVR properly tuned for open circuit conditions is
not necessarily well tuned for the on load condition. The phenomenon i
s explained and a simple solution through AVR compensation is suggeste
d.