Apparatus and method for monitoring the performance of an electromechanical machine

摘要

A method and apparatus for monitoring the performance of an electromechanical machine to warn of a malfunction of the machine takes initial simultaneous measurements of a plurality of parameters characterising the electromechanical behaviour of the machine during the normal operation of the machine, where each parameter characterises a different aspect of the electromechanical behaviour of the machine. The measurements are used to determine and store parameter limits. Simultaneous measurements of the plurality of parameters characterising the electromechanical behaviour of the machine are taken during a monitoring period. The measurements taken during the monitoring period are compared with the stored parameter limits and if they are outside a predetermined normal range of the stored parameter limits, the measurements are stored and an output signal is generated. Optionally the operation of the machine may be modified based on the output signal.