POWER SUPPLY SYSTEM Russian patent published in 1995 - IPC

FIELD: electrical power engineering. SUBSTANCE: system includes units of inductive-capacitive converters with transformers having devices of voltage regulation under load. Inputs of these units are connected to buses of first electric power station through switches and their outputs are linked to additional buses through other switches which are coupled to load through second power line with which first power supply line with inductive- capacitive converters is connected in series. Second end of this line is linked to buses of second electric power station. Inputs of control unit are connected to meter of phase difference between voltage across buses of first and second electric power stations, to meter of voltage across load, to meter of active power transfer, to meter of current across units of inductive-capacitive converters with transformers, to meters of voltage across buses of first electric power station, to meter of mechanical power on shafts of turbines of first electric power station and its outputs are linked to drives of switches through which units of inductive-capacitive converters with transformers are switched on, to units of voltage control under load of these transformers, to unit of automatic control over excitation of synchronous machines of second electric power station. Signals across their outputs are formed under conditions P≠ P_opt and U_p≠ U_opt. EFFECT: enhanced efficiency of control over power transfers in electric power system. 8 dwg