Simplified Approach for the Stability Study, Application to the Damped Alternator

Overview & Synopsis

This paper deals with the stability of the damped alternator. Unlike the undamped alternator, we have found that the unstable region located around the zero value of the internal angle disappears when inertia takes normal values. However, this unstable region remains for low values of inertia. This result can not be shown by the simplified approaches given by previous authors for which inertia is not taken into account in the formulae. Our method can be much wore simplified in the case for large values of inertia, where the stability study is reduced to the discussion of two parameters. This result meets the one given by Tamura approach which we extended to the damped alternator. This extensive approach remains much more complicated than our method which turns, in this case, to an elementary calculation.