Maximum power point tracking using lagrange interpolation method to optimized photovoltaic on dc microgrid system
Abstract
Electrical energy is very important for everyday life. The need of electrical energy increasing every year. However, the solar panel source has a weakness. The output power of solar panel is still fluctuating depending on ambient temperature and solar irradiantions on the solar panel. Irradiation is the radiant of energy that comes from the sun. To overcome the problem the Maximum Power Point Tracking is needed so it can make solar panel work at its optimum point. This Maximum Power Point Method is looking for the largest current and voltage read by solar panel using the Lagrange Interpolation method. By using Maximum Power Point Tracking, the output power is expected to be optimal with constant voltage and current so that the battery’s lifetime is not damaged quickly. This method can track Maximum Power Point whenever irradiation changes occur. The converter used in this Maximum Power Point Tracking is the SEPIC Converter. This converter can convert DC to DC voltage in higher or lower voltage without changing its polarity. In this paper, Lagrange Interpolation method has average error in output power of 1,96%.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- November 2019
- DOI:
- 10.1088/1742-6596/1367/1/012050
- Bibcode:
- 2019JPhCS1367a2050D