SYSTEMS, DEVICES AND METHODS FOR PREDICTING POWER ELECTRONICS FAILURE
First Claim
1. A method comprising:
- monitoring input data associated with an input to a photovoltaic inverter;
monitoring output data associated with an output from the photovoltaic inverter;
analyzing the input data and the output data to identify trends predictive of failure of the photovoltaic inverter based on the input data and the output data.
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Abstract
The present disclosure provides systems, devices, and methods of utilizing signal-processing techniques to detect at least one degrading component of a power conversion unit located in an energy generation or storage unit. The systems, devices, and methods of the present disclosure are applicable to a wide range of energy generation and energy storage units, from commercial power plants to residential solar applications to electric vehicles. The present disclosure provides a real-time data-acquisition system that extracts actual performance data during the operation of the unit, and compares its performance with historic performance (especially changes over time or derivative performance information) in order to predict device performance or failure.
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Citations
20 Claims
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1. A method comprising:
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monitoring input data associated with an input to a photovoltaic inverter; monitoring output data associated with an output from the photovoltaic inverter; analyzing the input data and the output data to identify trends predictive of failure of the photovoltaic inverter based on the input data and the output data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a first master sensor module in communication with a central server; and a plurality of slave sensors in communication with the master sensor, each of the slave sensors having at least an input current sensor and an output current sensor for monitoring input and output data associated with a photovoltaic inverter; wherein the system is configured to analyze the input and output data associated with the photovoltaic inverter to identify trends predictive of failure of the photovoltaic inverter. - View Dependent Claims (12, 13, 14, 15)
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16. An apparatus comprising:
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an input current sensor for monitoring input data associated with an input to a photovoltaic inverter; an output current sensor for monitoring output data associated with an output from the photovoltaic inverter; at least one processing unit in communication with the input current sensor and the output current sensor, the at least one processing unit programmed to analyze the input data and the output data to identify trends predictive of failure of the photovoltaic inverter based on the input data and the output data. - View Dependent Claims (17, 18, 19, 20)
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Specification