Patent ID: 8026647

Claim:
A generator-brake integration type rotating machine comprising: an inertia disk coupled to a shaft to rotate; a rotor ring rotating around the shaft inside the inertia disk and having a plurality of magnets mounted to a circumferential outer surface thereof; a laminated yoke positioned between the inertia disk and the rotor ring, and having a plurality of brake coils located at regular angular intervals on a circumferential outer surface thereof and a plurality of generator coils located at regular angular intervals on a circumferential inner surface thereof; a generator coil output section electrically connected with the generator coils; a commutating section for commutating an alternate current voltage outputted from the generator coil output section; a DC power supply and control section for converting an output voltage of the commutating section into a predetermined voltage level and generating a speed control signal for compensating an inertia torque, in response to an input from a user; a current control section for receiving an output of the commutating section and controlling an intensity of current, to be outputted to a brake coil input section, in response to the speed control signal; and a display section for communicating with the DC power supply and control section and displaying a rotational speed, wherein the plurality of generator coils are respectively wound on a plurality of first bobbins which project inward from the circumferential inner surface of the laminated yoke, and the plurality of brake coils are respectively wound on a plurality of second bobbins which project outward from the circumferential outer surface of the laminated yoke, wherein the laminated yoke is fixedly coupled to a stator holder, and the stator holder is coupled to the shaft by way of a bearing and is fixedly coupled to a housing, and wherein the DC power supply and control section comprises: a torque adder for adding a torque command inputted by the user and an inertia torque depending upon a rotational speed of the inertia disk and outputting a compensating torque; a current output unit for converting the compensating torque outputted from the torque adder into a current command; a current subtracter for subtracting a measured actual current from the current command outputted from the current output unit; a proportional integrator for proportionally integrating a compensating current from the current subtracter and applying the resultant value to the brake coil input section; a rotation pulse generator for measuring a rotational speed of the inertia disk and outputting a rotational speed value in the type of a pulse; a differentiator for differentiating the rotational speed value outputted from the rotation pulse generator, and an inertia torque output unit for multiplying an angular velocity outputted from the differentiator by a predetermined coefficient and outputting an inertia torque.