CD Skripsi
Analisis Sistem Penyimpanan Energi Hybrid Berbasis Superkapasitor Dan Baterai Pada Pembangkit Listrik Tenaga Surya (Plts) Stand-Alone
ABSTRACT
Stand-alone solar power plants experience output instability due to fluctuations in solar radiation. To overcome this, an energy storage system is needed. Batteries, as the main energy storage device, have large capacity but limitations in power density and charging/discharging rates. Meanwhile, supercapacitors have high power density and fast response but are limited in maintaining power over a long period of time. This study aims to analyze the performance of a Hybrid Energy Storage System (HESS) based on batteries and supercapacitors in stand-alone PLTS. The research method was conducted through modeling and simulation using MATLAB/Simulink. The Low Pass Filter (LPF) control method was used to distribute power according to the characteristics of each storage device. The analysis focused on the effect of adding supercapacitors on battery performance under conditions of solar radiation changes and dynamic loads. The simulation results show that the addition of supercapacitors can reduce the charge-discharge cycle of the battery during radiation fluctuations or load power changes. The addition of supercapacitors can also reduce current fluctuations in the battery, maintain DC bus voltage stability, and extend battery life. Thus, HESS has been proven to improve the reliability and efficiency of stand-alone solar power plants and also reduce the battery's workload.
Keywords: HESS, Supercapacitor, Battery, Solar Power Plant, LPF
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