| 摘要 |
FIELD: electrical engineering; automatic emergency control of power systems. SUBSTANCE: X, value is shaped for each pair of generator circuits, say, for i-th and k-th ones, as difference between α•Xand α•Xvalues, where Xand Xare values proportional to currents through i-th and k-th generator circuits and α,, αare coefficients proportional to resistance of i-th and k-th circuits, respectively, and inversely proportional to sum of these resistances. Xvalues are used as working parameter for detecting asynchronous operation between generators of each pair of generator circuits. Control signals are shaped by logical operations for each pair of generator circuits. EFFECT: improved selectivity and stability of method used for detecting asynchronous running irrespective of number of frequencies in both two-machine and multimachine power system; provision for optimal generation of control signals for each type of asynchronous operation. 1 dwg |
