MANNER OF AUTOMATIC FREQUENCY UNLOADING OF POWER SYSTEM Russian patent published in 2000 - IPC

FIELD: electrical engineering, aids for emergency automatics of power systems. SUBSTANCE: required extent of unloading formed from certain number of groups- queues of automatic frequency unloading into which entire extent of automatic frequency unloading is uniformly distributed is realized in two stages Number of queues in each stage is determined automatically. Manner provides for substantially less fall-through while correcting frequency emergency and fast restoration of frequency under total lack of redundancy of action within entire range of values of emergency deficit. EFFECT: increased efficiency of automatic frequency unloading of power systems by way of automatic determination of value of emergency deficit caused by frequency fall in power system at rate of process of frequency fall and formation of dose of unloading in correspondence with value of emergency deficit. 3 dwg, 1 tbl