System and methods of failure prediction and prevention for rotating electrical machinery
AssigneeCognitive Systems Corp.
InventorAmir Badkoubeh
Life of this patent
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Abstract
A system for monitoring operation of rotating electrical machinery including electrical industrial machinery. The system comprises analog sensors configured to measure electrical signals corresponding to the voltage and the current of the rotating electrical machinery. A remote processor identifies the frequency components of the measured electrical signals. Based on the frequency components, the system is monitored and controlled. This may help allow electrical faults, mechanical faults and process faults to be predicted and/or prevented.
Claims19
A system for monitoring operation of an electrical drive of rotating electrical machinery comprising:
- analog sensors configured to measure electrical signals generated by the rotating electrical machinery, the measured electrical signals corresponding to a voltage and a current of the rotating electrical machinery;
- and
- a remote processor configured to receive the measured electrical signals and to identify frequency components independently in the measured voltage electrical signals and in the measured current electrical signals, wherein the system is configured to receive and/or calculate speed signals corresponding to a set speed and to an actual speed of the electrical drive, wherein the set speed is a target speed setpoint set by a controller of the rotating electrical machinery.
A method for monitoring operation of an electrical drive of rotating electrical machinery, comprising:
- measuring analog electrical signals generated by the rotating electrical machinery, the measured electrical signals corresponding to a voltage and a current of the rotating electrical machinery;
- receiving the measured electrical signals at a remote processor;
- and
- identifying frequency components independently in the measured electrical signals, and
- receiving and/or calculating speed signals corresponding to a set speed and to an actual speed of the electrical drive, wherein the set speed is a target speed setpoint set by a controller of the rotating electrical machinery.
A method for monitoring and controlling operation of an electrical drive of a motor in a rotary electric machine comprising:
- receiving current and voltage signals from the rotary electric machine;
- determining a speed of the rotary electric machinery;
- identifying frequency components of the current signal;
- identifying frequency components of the voltage signal;
- monitoring the system in normal use to determine normal frequency components of the torque signal;
- identifying a fault frequency component based on deviations of the identified frequency components of the current signals and of the voltage signals from the normal frequency components of the current and voltage signals;
- and
- receiving and/or calculating speed signals corresponding to a set speed and to an actual speed of the electrical drive,
- wherein the set speed is a target speed setpoint set by a controller of the rotating electrical machine.
Dependencies are inferred from the claim text.