Dn. Konidaris et Ja. Tegopoulos, SENSITIVITY OF TORSIONAL STRESS PREDICTIONS OF DIESEL GENERATOR SETS TO CRITICAL PARAMETER VALUES, IEEE transactions on energy conversion, 11(3), 1996, pp. 515-520
In the present paper a new method is presented for the evaluation of t
orsional stressing of diesel-generator sets consisting of components w
ith uncertain torsional characteristics. A frequency scanning techniqu
e Is implemented for eigenvalue analysis of the elastic system. Due to
the uncertainty of the values of stiffness and damping coefficients,
a sensitivity analysis method is also presented, suitable for the eval
uation of the range of the mechanical stresses. Special consideration
Is given to the correct simulation of the coupling to the electric net
work, Including the Influence of generator regulators and possible net
work interactions. An exact formula Is extracted for the synchronizing
and damping torque coefficients. The method presented was checked in
a Diesel Power Station of the autonomous electric system of a Greek is
land.