Iv. Yakimets et al., DETECTION OF POWER-SYSTEM ASYNCHRONISM BY MEASUREMENT OF THE PHASE-ANGLE BETWEEN EQUIVALENT GENERATOR ELECTROMOTIVE-FORCES, ELECTRICAL TECHNOLOGY, (3), 1996, pp. 105-116
A method is proposed for forecasting the onset of asynchronism in a po
wer system in order to ensure timely response of protective automation
. It is shown that the use of microprocessor elements in an automation
system makes it possible by phase-frequency analysis of current chang
es to estimate the relative motion of the power system in a multimachi
ne asynchronous condition. Copyright (C) Elsevier Science Ltd.