POWER SUPPLY

摘要

PURPOSE:To control the rotational speed of a fly-wheel generator to an optional speed, by combining a field weakening control of the fly-wheel generator with a current control of a static driving device in a power supply device supplying electric power to a magnetic field coil of which nuclear fusion device is constituted. CONSTITUTION:A deviation signal between a feedback signal of coil current by a current detector 8 and a set signal of a current setting device 9 is amplified 10 and a magnetic field is controlled by a thyristor exciting device 11 and the necessary voltage for a generator is generated and the coil current is controlled. A feedback of a speed of a fly-wheel generator 2 is made by a speed detector 14 and a difference signal from a speed setting device 15 is obtained by a signal adder 16 and is derived to a speed controlling device 18. This controlling device 18 amplifies the difference signal and its output is inputted to a signal adder 17. A current controlling device for a driving device 19 controlls the current of a device 6 and sets the rovolving speed of the genedrator 2 so that the deviation between an output of the device 18 inputted to the adder 17 and a signal in accordance with outputted current of a static driving device 6 which detects to a current detector 20 becomes zero.