Energy Conversion System for Small ScaleRenewable GenerationEnergy Conversion System for Small ScaleRenewable GenerationEnergy Conversion System for Small Scale Renewable Generation

• Main Authors: Liu yan nan, 劉彥男
• Other Authors: 陳柏宏
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/01857881912741725398

碩士 === 聖約翰科技大學 === 電機工程系碩士班 === 97 === The purpose of this thesis is the design and implementation of an Energy Conversion System for Small Scale Renewable Generation which is mainly used for the energy conversion of hybrid photovoltaic-wind generation system. The energy conversion system aims to convert the unstable DC electricity produced by photovoltaic cells and wind generators into the stable DC and AC electricity output. The system adopts a maximum power point tracking technique in order to increase photovoltaic generation and to improve the wrong adjustment under rapidly changing atmospheric conditions. An 8-bit microprocessor PIC16F4520 is used as the controller to control the maximum power point tracking within a buck-boost converter. Then, a battery charger is designed to convert the DC output of buck-boost converter into the stable DC electricity in order to store energy in a battery and to supply the DC loads. Subsequently, the low voltage DC electricity is converted into the high voltage DC electricity by a push-pull converter. Then, a full bridge inverter is designed to convert the high voltage DC electricity into the 110V/60Hz AC electricity to supply the AC loads. Finally, a 1kW prototype is built and tested to verify the performance and feasibility of the proposed energy conversion system.