Developing a Matlab-Based Power Generation Code for CubeSats

CubeSats have emerged as versatile platforms for various space missions, ranging from interplanetary exploration to Earth observation. One key aspect of the CubeSat design is efficient electrical power generation to support mission objectives. This study explores the development of a MATLABbased power generation code for CubeSats, aiming to provide an affordable and accessible solution for students and researchers. The study begins by highlighting the significance of CubeSats in advancing space exploration and fostering innovation. It addresses the classification of CubeSat solar panel arrangements, distinguishing between body-mounted and deployable solar panels with varying degrees of mobility. Solar panel efficiency and the importance of power generation enhancement are discussed. The research outlines the steps involved in developing the MATLAB-based power generation code. It initiates with CubeSat mission definition, orbital parameter extraction using the General Mission Analysis Tool (GMAT), and data transfer to MATLAB. The code computes sun vectors, eclipse times, and Direction Cosine Matrices (DCMs) to determine power generation. The calculations consider factors such as solar cell efficiency, solar constant, solar panel areas, and the number of cells. The code output is validated by comparing results with the Systems Tool Kit (STK). The MATLAB-based power generation code offers a cost-effective alternative for CubeSat power estimation, making it accessible to students and researchers. While some minor discrepancies exist in the comparison with STK due to assumptions of the solar cell parameters, the developed model demonstrates its utility and provides a valuable tool for CubeSat power generation analysis. This research contributes to the ongoing efforts to enhance CubeSat capabilities and support innovative space exploration missions in the United Arab Emirates.