초록 ▼

An MHD generator has a plurality of segmented electrodes extending longitudinally of a duct, whereby progressively increasing high DC voltages are derived from a set of cathode electrodes and progressively increasing low DC voltages are derived from a set of anode electrodes. First and second load t

An MHD generator has a plurality of segmented electrodes extending longitudinally of a duct, whereby progressively increasing high DC voltages are derived from a set of cathode electrodes and progressively increasing low DC voltages are derived from a set of anode electrodes. First and second load terminals are respectively connected to the cathode and anode electrodes by separate coupling networks, each of which includes a number of SCR\s and a number of diode rectifiers.

대표청구항 ▼

In combination with an MHD generator having a plurality of segmented electrodes extending longitudinally of a duct whereby progressively increasing high DC voltages are derived from a set of cathode electrodes of the generator and progressively increasing low DC voltages are derived from a set of an

In combination with an MHD generator having a plurality of segmented electrodes extending longitudinally of a duct whereby progressively increasing high DC voltages are derived from a set of cathode electrodes of the generator and progressively increasing low DC voltages are derived from a set of anode electrodes of the generator, a first common terminal for the high voltage cathode electrodes, a second common terminal for the low voltage anode electrodes, said common terminals adapted to be normally maintained at predetermined voltages and to be connected across a load for the generator, a network for coupling one of said sets of electrodes to one of said terminals comprising: a controlled switch connected between a first electrode of the one set and said one common terminal, a rectifier connected between a second electrode of the one set and said one common terminal, said first and second electrodes having voltages on opposite sides of the voltage of said one common terminal, said rectifier being connected so that it is normally cut off by the voltage between the second electrode and said one common terminal, said switch being connected so that it is normally conductive between the first electrode and said one common terminal once it has been triggered into a conducting state in response to a control signal, and means for inductively coupling the switch and rectifier together so that the rectifier is biased into a conducting state in response to a change in the current flow through the switch.