Uninterruptible DC power supply device for supplying without a break the DC power supply to the load

摘要

seamless supply uninterruptible DC power supply the DC power supply to the load is disclosed. Uninterruptible DC power supply device according to an embodiment of the present invention includes a first connection portion electrically connected to the DC power supply converter for converting a commercial AC power source to a DC power source, the load electrically connected, the DC power supply supplying a second connecting portion for supplying to a load, an auxiliary power supply is charged by the DC power source, the DC power supplied from the DC power converter, which is normally connected to the first connecting portion, to a load through a second connecting portion while, charging the auxiliary power unit, the decoupling of the DC power conversion device from the first connecting portion, damage to the DC power supply conversion device, or at the time of short-circuiting of the DC power conversion equipment, electrical and DC power supply conversion device and the auxiliary power unit while completely cut off the coupling also includes a uninterruptible power control unit for power supply to the load is controlled so as to be made without a break, the.