METHOD FOR EXPERIMENTAL DETERMINATION OF AMPLITUDE-FREQUENCY AND PHASE-FREQUENCY CHARACTERISTICS OF ROCKING OF SYNCHRONOUS GENERATOR ROTOR IN OPERATION MODE Russian patent published in 2004 - IPC

FIELD: electrical engineering, possibly systems for production, conversion and distribution of electrical energy, for example in synchronous generator for receiving initial data determining operation parameters of generator.

SUBSTANCE: method comprises steps of determining amplitude and oscillation phase of rotating rotor by chronometry; setting test-action generator for fixed period of sign-variable test voltages; connecting test-action generator with driving winding of generator rotor; measuring train of time intervals between two nearest time moments of registering; determining during such period of test action amplitude and phase shift of main harmonic of rotor rocking relative to phase of main harmonic of test action for fixed time period with use of expression where component of amplitude of torsion oscillations of rotor for harmonic of test action; - phase shift corresponding to period of test action of harmonic of torsion oscillations of rotor relative to phase of main harmonic of test action; on base of calculation results of amplitude and phase of rocking angle of rotor, calculating frequency characteristics of generator.

EFFECT: enhanced accuracy of calculating frequency characteristics of generator necessary for evaluating its technical state, for prediction, damage prevention, for changing planned repair works by repair works according to current technical condition of generator.

1 dwg