DETECTING FAULTS IN MOTORS AND DRIVES

摘要

Disclosed herein is a system and method for determining faults in motors and drives. The system includes a motor drive that has a DC-link coupled to a power source. A controller system is configured to measure power applied to the DC-link, integrate the power over time to yield energy consumed, and to determine energy that accumulates in operation over time. The controller is further configured to detect a fault condition when the energy that accumulates in operation is less than expected based on the energy consumed.

主权项

1. A method for detecting faults in a motor drive, comprising:
measuring electrical power applied to the motor drive; integrating the electrical power applied over time to yield electrical energy consumed; and comparing the electrical power to an output condition to determine an existence of a fault in the motor drive.