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Maximum power point tracking method and system thereof

  • US 10,141,828 B2
  • Filed: 10/30/2017
  • Issued: 11/27/2018
  • Est. Priority Date: 04/20/2017
  • Status: Active Grant
First Claim
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1. A maximum power point tracking method comprising:

  • configuring a voltage tuning direction of a power converter by a process circuit, such that an input voltage of the power converter changes in a positive trend or in a negative trend;

    detecting the input voltage and an input current of the power converter at a first time point to obtain a first power value;

    detecting the input voltage and the input current of the power converter at a second time point after the first time point to obtain a second power value;

    detecting the input voltage and the input current of the power converter at a third time point after the second time point to obtain a third power value; and

    changing the voltage tuning direction of the power converter on the condition that the first power value is greater than the second power value, and the second power value is greater than the third power value, such that the change of the input voltage switches from the positive trend to the negative trend, or from the negative trend to the positive trend.

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