الفهرس 
Abstract
Load equipmentOnly 14 pages are availabe for public view
 |  | from | 157 |  |  |
| | | from | 157 | | |
Abstract
Renewable energy resources will be an increasingly important part of power generation in the new millennium. Besides assisting in the reduction of the emission of greenhouse gases, they add the much- needed flexibility to the energy resource mix by decreasing the dependence on fossil fuels. Photovoltaic (PV) systems are ideally suited stand alone and distributed resource applications. PV systems produce DC electricity when sunlight shines on the PV array, without any emissions. The DC power is converted to AC power with an inverter that can be used to power AC loads. This thesis investigates the different methods used for design and modeling of stand-alone PV power system. System modeling forms a key part of the photovoltaic system design. A review of the basics of PV power system, the meaning of photovoltaic effect, main types of PV systems, and the components of PVPS are presented. The modeling and design methods for PV systems are discussed and a survey of the PV modeling and sizing methods is presented. The most used sizing tools, simulation software and open architecture tools are also introduced. A new mathematical model for the PVPS feeding a DC load is proposed and a dynamic Simulink model is created to represent that proposed model. The model is tested to simulate different types of photovoltaic panels constructed with different materials. The thesis presents a proposed PVPS Simulink model suitable for direct coupled PV-AC load system. The proposed systems consists of a PV generator, a power electronic conditioning system, and energy storage system of capacitor banks forming DC link between choppers (DC-DC converters) and inverters (DC-AC converters), or batteries used for energy storage, or even physical storage system such as water tanks. A Matlab-Simulink model represent the PVPS is developed and simulated to validate the design of the system