Design and implementation of a stand-alone photovoltaic power supply system

• Main Authors: Cheng-Hsiung Chen, 陳正雄
• Other Authors: Yi-Hwa Liu
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/07939925736007346040

碩士 === 長庚大學 === 電機工程研究所 === 92 === In this thesis , the controller and power circuit of a PV power supply system are designed and implemented. The proposed system has three main advantages, such as stand alone ability ,high mobility and expandable ability. Because the output energy of solar cell depends on insolation and temperature of the environment, maximum power tracking is implemented based on a PIC16F877 microcontroller. In this thesis, the detailed algorithm and analysis methods are also presented. The hardware of the proposed system includes a battery charger for maximum power tracking , a DC/DC converter for boosting battery voltage, an inverter for DC/AC conversion and an auxiliary power supply. Experimental and simulation results demonstrate the effectiveness and validity of the proposed system.