Improved maximum power point tracking method for photovoltaic power generation system
A photovoltaic power generation system and maximum power point technology, applied in photovoltaic power generation, control/regulation systems, and regulation of electrical variables, etc., to achieve the effects of low power consumption, fewer circuit components, and strong stability
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 The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.
 The working principle of the present invention is: an improved maximum power point tracking method for a photovoltaic power generation system, which is based on a combination of a constant voltage method and a modified variable-step conductance incremental method. At the beginning, the constant voltage method (CVT) is used to quickly track to the vicinity of the maximum power point of the photovoltaic power generation system, and then switch to the modified variable step conductance incremental method to further track to the maximum power point, so as to achieve fast tracking and high-precision operation. Solve the deficiencies in the current conventional algorithms.
 Photovoltaic power generation system pre-stage DC / DC boost circuit such as figure 1 As shown, the positive electrode of the photovoltaic cell is conne...
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