基于DSP控制的光伏离网逆变器逆变电路部分的硬件电路 毕业论文.doc

摘要由于近年来不可再生能源的不断消耗,能源危机日益凸显,各国都在加紧开发新能源。太阳能发电作为一种全新的电能生产方式,具有清洁无污染、来源永不衰竭且维护措施简单等特点,因而受到越来越广泛的关注。本文针对太阳能应用的一个重要研究领域——光伏发电系统,尤其是小功率光伏离网发电系统,设计实现了基于 DSP 控制的光伏离网逆变器逆变电路部分的硬件电路。论文首先介绍了太阳能光伏发电的国内外发展现状,阐述了利用 DSP 控制光伏离网系统的基本原理。然后提出了以逆变器 DC/AC 变换技术为核心的光伏离网逆变器的硬件电路设计方案,并在 Matlab 软件上进行了仿真测试。关键词:光伏离网;逆变器; DSP ; Matlab 仿真 Abstract In recent years, with the continuous consumption of non-renewable energy, the energy crisis has e increasingly prominent, countries are stepping up the pace to develop new energy. Solar power, asa new energy production methods, owns many features, such as, clean, non-polluting, never failure of source and simple maintenance measures, and thus draws more and more this paper, as for an important research field of solar energy applications-photovoltaic systems, especially low power photovoltaic off grid power generation system, design and achieve the hardware circuit of inverter circuit in photovoltaic off grid inverter based on DSP control. The paper firstly described the development of photovoltaic power generation in the world, and explained the basic principles of DSP controlled photovoltaic off grid objective of toff grid inverter with the core of DC / AC conversion technology inverter hardware circuit is designed and its simulation tests on the Matlab software is proceeded. Key words: off grid photovoltaic; inverter; DSP; Matlab simulation 目录摘要..................................................................................................................... 1 Abstract ................................................................................................................... 2 1 引论..................................................................................................................... 4 太阳能应用的背景......................................................................................................... 4 光伏发电应用现状和意义.....................................................................................