摘要 |
The supply is intended for single-phase or independently controllable adjusting servo-systems. Starting with the detected phase voltage control signals (ust) the precise valve combination sequence is selected with positive or negative control signal sign. Thus alternately a zero, a positive or negative, and a again a zero voltage is provided as starting voltage for the scanning interval. The switching times (To1, o2, 1) of the servo-valves are determined for the next scanning interval from a comparison of changes of the real arrangement and a model for the basic oscillation magnitudes from the instantaneous value of the phase voltage control signal, the path time constant, the path amplifying, and the scanning time. USE/ADVANTAGE - Mains and machine rectifiers in three-phase traction, with reduced cost in hardware and software electronic for obtaining quality parameters.
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申请人 |
ELPRO AG BERLIN, O-1140 BERLIN, DE |
发明人 |
EULITZ, THOMAS, DIPL.-ING., O-8122 RADEBEUL, DE;KLEINDIENST, FRANK, DIPL.-ING., O-9619 GLAUCHAU, DE;HOFMANN, WILFRIED, DR.-ING., O-8010 DRESDEN, DE;KOHLS, MATTHIAS, DIPL.-ING., O-1020 BERLIN, DE;LERWE, OLAF, DIPL.-ING., O-1199 BERLIN, DE |