Industrial driving power uninterruptible protection device based on direct current supporting technology

The present invention discloses an industrial driving power uninterruptible protection device based on a direct current supporting technology. The device comprises a voltage and current detection unit, a power management unit, a direct current power supply unit, an execution switching unit, a communication display unit and a single chip microcomputer main control unit. The voltage and current detection unit is configured to detect the states of the voltage and the current of a power grid, when the electric energy quality of the power grid is declined, and a backup source provided by the powermanagement unit supplies power to a load coil. The direct current power supply unit can supply a direct voltage with adjustable sizes for loads with different capacities so as to greatly improve the application range of the device. The switching unit employs a zero-clearance current conversion structure based on the IGBT to avoid the generation of a cutoff condition through a smooth follow currentmode and greatly improve