MANAJEMEN DAYA PADA PENEL SURYA BATERAI STAND-ALONE MENGGUNKAN MAXIMUM POWER POINT TRACKING ALORITMA BERBASIS P&O

Energy plays a very important role in human life today, particularly electrical energy. Petroleum has so far been the main source of energy used in Indonesia. One of the most potential renewable energy sources to be applied in Indonesia is the use of solar energy. Sunlight that reaches the earth's surface can be converted into electrical energy using solar cells or photovoltaic arrays. Solar energy is converted into electrical energy with an efficiency of 18%. This figure decreases further when the energy is used for electrical appliances due to voltage regulators, batteries, cables, and inverters, reducing it to around 10-15%. One way to keep solar cells working at their optimal point is to apply the Maximum Power Point Tracking (MPPT) algorithm. Therefore, in this research, a battery charging strategy on a standalone solar panel system based on Multi-Loop PI control is used, employing two DC-DC converters divided towards the load and the battery to maintain voltage on the DC bus and current during battery charging, with an inverter used to convert DC to AC current for the load using PI control.