Method and system for providing maximum power point tracking in an energy generating system
AssigneeNational Semiconductor Corporation
InventorsJianhui Zhang, Ali Djabbari, Gianpaolo Lisi
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Abstract
A method for providing a maximum power point tracking (MPPT) process for an energy generating device is provided. The method includes coupling a local converter to the energy generating device. A determination is made regarding whether the local converter is operating at or below a maximum acceptable temperature. A determination is made regarding whether at least one current associated with the local converter is acceptable. When the local converter is determined to be operating at or below the maximum acceptable temperature and when the at least one current associated with the local converter is determined to be acceptable, the MPPT process is enabled within the local converter.
Claims20
A method for providing a maximum power point tracking (MPPT) process for an energy generating device, the method comprising:
- determining whether a local converter coupled to the energy generating device is operating at or below a maximum acceptable temperature;
- determining whether at least one current associated with the local converter is acceptable;
- and
- when the local converter is determined to be operating at or below the maximum acceptable temperature and when the at least one current associated with the local converter is determined to be acceptable, enabling the MPPT process within the local converter.
A method for providing a maximum power point tracking (MPPT) process for an energy generating device, the method comprising:
- determining whether a local converter coupled to the energy generating device is operating at or below a maximum acceptable temperature;
- determining whether an average output current for the local converter is less than a maximum output current;
- determining whether an output current for the local converter is acceptable;
- determining whether an average input current for the local converter is acceptable;
- and
- enabling the MPPT process within the local converter when (i) the local converter is determined to be operating at or below the maximum acceptable temperature, (ii) the average output current is determined to be less than the maximum output current, (iii) the output current is determined to be acceptable, and (iv) the average input current is determined to be acceptable.
A system for providing maximum power point tracking (MPPT) for an energy generating device, the system comprising a local converter, the local converter comprising:
- a power stage operable to receive a device voltage and a device current from the energy generating device and to generate an output voltage and an output current based on the device voltage and the device current;
- and
- a local controller operable to provide MPPT for the power stage, the local controller comprising an MPPT module operable to:
- determine whether the local converter is operating at or below a maximum acceptable temperature;
- determine whether at least one current associated with the local converter is acceptable;
- and
- enable an MPPT process within the local converter when the local converter is determined to be operating at or below the maximum acceptable temperature and when the at least one current associated with the local converter is determined to be acceptable.
Dependencies are inferred from the claim text.