Emergency driving device in case of power failure of elevator

摘要

The present invention relates to an emergency operation apparatus in case of power failure of an elevator, and in particular, when a commercial power supply is out of power to supply power to the elevator control panel by a separate power and power supply device to drive the car of the elevator. The present invention controls the converter 202 for rectifying and converting commercial AC power into direct current, and converting the output signal of the converter 202 into an AC voltage having a variable voltage and a variable frequency to control the induction motor 207 for driving an elevator. A commercial inverter 206, a control circuit 208 for controlling the driving of the commercial inverter 206, a first transformer 209 for supplying power power to the control circuit 208, and a commercial power failure A second AC transformer 212 for supplying the control circuit 208 and the converter 202 with the same voltage as in normal operation, and an emergency inverter 211 for supplying three-phase AC power to the second AC transformer 212. ) And a battery 210 for supplying DC power to the emergency inverter 211 during a power failure.