DRY VACUUM PUMP DEVICE AND METHOD OF CONTROLLING SAME

摘要

The present invention relates to a dry vacuum pump device and a method of controlling the same, with which it is possible for rotation of a vacuum pump to be restarted immediately following a power failure such as a 'momentary power failure', which refers to a power failure that occurs for a short period of time at most equal to approximately 1 second. This dry vacuum pump device is provided with: a dry vacuum pump (1); a motor (2) which drives the dry vacuum pump (1); an inverter (11) which supplies variable-frequency alternating-current power to the motor (2) and controls the speed of rotation of the motor (2); and a control device (4) which controls the inverter (11). The control device (4) controls the inverter (11) in such a way that regenerative electric power generated by the motor during the power failure is consumed by power devices in the inverter (11), while driving power to the motor (2) is supplied from the inverter (11) immediately after power is restored.