The project is to Design and Develop an OFF-GRID solar photovoltaic System using DC-DC Topologies for BIUST classrooms light loads (lighting, projector, and computer). Narrowing this topic, focus is on harvesting solar energy using photovoltaic cells then boost the power using a DC-DC boost converter. This project consists of different subsystems, which are combined to have the solar system for classrooms light loads. These are Photovoltaic Solar Array, Maximum Power Point Tracking (MPPT), DC-DC boost converter and battery bank stores energy to be used when the sunrays are not efficient to supply the load. Lastly a DC-to-AC inverter is designed. The system is design is based on performed calculation to size each component to keep the system efficiency high. According to simulation of different DC-DC converters using Simulink, boost was the best converter to use looking at the output characteristics desired. Results from Proteus software simulation of the final circuit correspond with expectation from literature review. Furthermore, PVsyst software has been used to do the mathematical analysis of the designed model showing an estimated payback period of 2.6years whereas the output power for PVsyst model is 11.9 kW which the system produces given the design parameters calculated.

该项目旨在为BIUST教室的轻负载（照明，投影仪和计算机）设计和开发使用DC-DC拓扑的OFF-GRID太阳能光伏系统。缩小这个话题，重点是使用光伏电池收集太阳能，然后使用DC-DC升压转换器提高功率。该项目由不同的子系统组成，这些子系统组合在一起构成了用于教室轻负载的太阳能系统。这些是光伏太阳能电池板，最大功率点跟踪（MPPT），DC-DC升压转换器和电池组，用于存储当阳光无法有效地提供负载时要使用的能量。最后，设计了一个DC-AC逆变器。该系统的设计基于执行的计算来确定每个组件的大小，以保持较高的系统效率。根据使用Simulink对不同的DC-DC转换器进行的仿真，升压是查看所需输出特性的最佳转换器。最终电路的Proteus软件仿真结果与文献综述中的预期相符。此外，PVsyst软件已用于对设计模型进行数学分析，显示了2.6年的估计投资回收期，而PVsyst模型的输出功率为11.9 kW，在给定计算出的设计参数的情况下，系统产生的功率为11.9 kW。