能源，是人类不断向前进步的基础，对国民经济建设起着至关重要的作用，然而在世界经济快速发展的过程中，全球能源总体消耗数量更是越来越大。太阳能作为最具潜力的可再生能源，它的发展与利用必将为人类社会的发展做出巨大贡献。本文以DSP作为控制平台设计了一种小型独立光伏发电系统的实现方案。 文章首先分析了光伏发电系统的结构，并对光伏电池的基本工作原理与等效电路作了充分分析；其次，阐述了最大功率点跟踪原理，在BOOST电路的基础上对常用的MPPT算法进行了仿真；最后，选取“推挽升压结合全桥逆变”的总体设计方案。在推挽变换电路的设计里详细描述了各个元器件的参数选型，设计了前级控制电路、电压反馈电路以及高频变压器等，其中PWM驱动信号结合了图腾柱式结构以增加驱动效果；在逆变电路中，将单相全桥结构作为主电路的核心，同时给出了功率开关管与滤波器的选型，并设计了驱动电路、过流保护以及逆变采样电路。在软件设计中，实现了SPWM驱动信号的产生以及PI闭环反馈控制。 为了进行实验验证，制作了一台功率为500W的试验样机，其结果证明了本文的设计方案是可行的。

Energy ,it is the material basis for the continuous development of human society and it plays a vital role in the national economy.At the same time it is the main driving force to improve the people's living standards. However, with the rapid development of economic globalization, the overall global energy consumption is increasing quckily.Solar energy as the most promising renewable energy, its development and use of development of human society is bound to make a great contribution.An independent photovoltaic power generation system is the study in this paper, it based on DSP control platform to designed a implement for a small independent photovoltaic power generation system. Firstly, the status of domestic and international PV and future prospects were introduced, and then analyzed the classification and components of the photovoltaic systems.Secondly, after the basic working principle and equivalent circuit analysis of photovoltaic cells to fully explain the principle of maximum power point tracking, combined with BOOST circuit common MPPT algorithm for the simulation.Finally, the ‘push-pull boost circuit combines full-bridge inverter’ design is be used.In the push-pull circuit is described in detail the various components of the selection parameters, the design of pre-control circuit, a voltage feedback circuit, high-frequency transformer, which uses PWM output drive circuit totem pole to enhance their driving ability;In the inverter circuit, the single-phase full-bridge configuration as the core of the main circuit, and also given the power switch and filter selection and design of the drive circuit, over-current protection circuit and an inverter sampling.In software design, to achieve a drive signal generating SPWM and PI closed-loop feedback control. To verify the results, produced a feasibility prototype power 500W, the experimental results show that this scheme.