CONTACT-FREE DC DRIVE Russian patent published in 2018 - IPC H02P6/08 H02P6/15 H02P6/16 H02P6/17 H02P6/30 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and can be used in executive systems of various mechanisms based on contact-free DC drives. In contact-free DC electric drive comprising an electric motor, a code-to-PWM converter, a digital speed signal generation device, a rotational direction generating device, a position sensor, a position feedback converter in a code, a position error detection device, a speed error detection device, a first adder, a clock counter, a first unit for extracting a module, and a control code generation device at each clock cycle, as well as a switch including a constant factor dividing device, a switching zone number determination device at each clock, a decoder, a first logic device and an inverter, in addition, a relay element, a second adder, a second device for extracting the module, a multiplier, a third adder, a third unit for allocating the module, and a second logic device are additionally introduced. Technical result is achieved due to the fact that additionally introduced elements form a characteristic with variable steepness for small and linear parts for large errors in position.

EFFECT: increase in the stiffness in the angle under the action of the moment of loading and the improvement of the dynamic characteristics when driving at low speeds.

1 cl, 5 dwg