Maximum Power Point Tracking of a Small Scale Photovoltaic System with Variable Structure Controlled Buck Converters

• Main Authors: Re-Shi Liao, 廖瑞緒
• Other Authors: 蘇武昌
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/74301785510092002399

碩士 === 國立中興大學 === 電機工程學系所 === 94 === This thesis is for the purpose of discussing the Maximum Power Point Tracking(MPPT) and design of controller for Buck DC-DC Converters. In the thesis, The solar cell has describes in detail for the basic principle, electrical structure and electrical characteristic. According to the correlation formula to describes the curve of electric current-voltage and the power-voltage. And then to explain the MPPT method. The output power of the solar cell output maximum power to load by Buck DC-DC Converters. In the designs of controllers, the present thesis uses the Variable Structure Controlled(VSC) for main control strategy. The VSC has the merit of noise-immunity, thus, it can be quick stably gets down to output change. The system achieves the command goal by feedback the output voltage. Feedback the output voltage used to operation of control the order.