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Modified-PO Method to Improve the MPPT Performance of PV System
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 Title & Authors
Modified-PO Method to Improve the MPPT Performance of PV System
Ko, Jae-Sub; Chung, Dong Hwa;
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 Abstract
This paper proposes the method which is improved a performance of PO MPPT control in PV system. The PO method is continually changed voltage toward direction that increases power, and if output power is decreased by changing voltage, a power of the conventional PO method is changed to a power before one step. These operations causes reduce of MPPT performance. Therefore, this paper proposes the MPPT method that can be improved the performance of the conventional PO method. When voltage is changed to direction of reducing power, the method proposed in this paper is changed to the voltage the opposite direction of twice step size. The MPPT performance of proposed method in this paper is compared with conventional PO method and proved the validity of this paper using these results.
 Keywords
Photovoltaic;MPPT Algorithm;Perturbation & Observation;
 Language
Korean
 Cited by
 References
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