%A Thi Viet Huong Pham %A Khuong Duy Mac %A Anh Vu Tran %A Anh Viet Dang %A Minh Trien Pham %J VNU Journal of Computer Science and Communication Engineering %T Design and simulation of a DC stabilization system for solar energy system %X During the last few years, the market for solar photovoltaic (PV) energy has grew remarkably since it provides electricity from an exhaustible and clean energy source. The generated power from the panels depends on environment conditions, which changes continuously. In order for the system operates at its most efficiency, it needs to work at its maximum power point (MPP). In this paper, Maximum Power Point Tracking (MPPT) algorithms are discussed and implemented. While the system works at its MPP, an adaptive load is utilized to obtain a steady and reliable desired output voltage. Previous literature has dealt with either investigating MPPT algorithms or tracking a steady output voltage from solar panels, not both. Our paper fulfilled that gap in literature. It is not only able to obtain a reliable steady DC output voltage but also keep the solar system work at its maximum efficiency. A Proteus simulation confirmed our theory and implementation. %D 2019 %I VNU %L SisLab3522