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ANALISIS PENGARUH VARIASI BEBAN TERHADAP KINERJA BATERAI DAN SOLAR CHARGE CONTROLLER MPPT PADA SISTEM PLTS OFF-GRID 2000 W BERBASIS APLIKASI SHINEPHONE
This study aims to analyze the effect of load variation on battery performance and the MPPT Solar Charge Controller (SCC) in a 2000 W off-grid solar power system based on the ShinePhone application. The tests were conducted through battery charging and discharging using load variations of 200 W, 250 W, and 300 W. The observed parameters included panel power, battery voltage, battery current, load power, SoC, and total energy data from EPV Today and Ebat Today. The results show that the charging process took approximately 5 hours and 45 minutes, from 10% to 100% SoC. During discharge, the 200 W load was supplied for approximately 9 hours and 20 minutes with 1,468.22 Wh of energy, the 250 W load for 6 hours and 40 minutes with 1,327.33 Wh, and the 300 W load for 5 hours and 45 minutes with 1,366.94 Wh. A higher load increased the discharge current and reduced battery operating time. The MPPT SCC efficiency based on EPV Today and Ebat Today data was 100%. Therefore, load variation affects battery performance, while the MPPT SCC operates properly during the battery charging process.
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