PERBANDINGAN UNJUK KERJA MPPT ALGORITMA INCREMENTAL CONDUCTANCE (IC) DAN PETURB AND OBSERVE (P&O) PADA PLTS MENGGUNAKAN CUK CONVERTER

Mapping of Indonesia, located on the equator with high solar radiation intensity, makes it one of the options for developing solar power plants to meet alternative electricity energy needs. In several regions of Indonesia, the geographical distribution of solar energy results in different wind characteristics and radiation patterns. Consequently, the fluctuations in solar exposure duration become larger the further one moves from the equator. By using a Cuk converter, which is an enhancement of the buck-boost converter, it aims to produce a smaller ripple current by adding inductors and capacitors at the input of the Cuk converter circuit, thus expected to yield better output than the buck-boost converter. The addition of the Incremental Conductance method allows for effective determination of the maximum power point without being influenced by various changes in solar panels, such as decreases in cell efficiency and environmental condition changes. Furthermore, a comparison is made using the Perturb and Observe method, which has the advantage of being faster and more accurate in finding maximum power compared to other algorithms; however, this method can also produce oscillations in the output power. The best results using the Cuk converter with the MPPT P&O method achieve a higher efficiency of 95.83% compared to the IC algorithm with a value of 95.79%.