Improved Photovoltaic Power Generation Maximum Power Tracking Method

Abstract

The output power of photovoltaic modules is affected by factors such as temperature and illumination. In order to improve the efficiency of photovoltaic power generation systems, it is necessary to track and control their output power. This paper introduces the advantages and disadvantages of the traditional maximum power point tracking method, and proposes a three-stage maximum based on the combination of constant voltage method-variable step disturbance observation method-conductance method based on the traditional maximum power point tracking method. Power point tracking method. The method starts tracking from the vicinity of the maximum power point, reduces the tracking time, and avoids the problem that the oscillation cannot be stabilized near the maximum power point and the tracking failure occurs due to the change of the external environment. To further study the maximum power point tracking method and lay a foundation for improving the efficiency of photovoltaic power generation.