【作者】 王惠祥；

【导师】 吴国忠； 沈洪流；

【作者基本信息】 浙江大学 ， 电气工程， 2012， 硕士

【摘要】 随着全球能源危机和环境污染问题的日益严重,开发利用清洁的可再生能源势在必行。太阳能是当前最清洁、最现实、大规模开发利用最有前景的可再生能源之一。在太阳能的利用中,光伏发电是其主要利用方式,受到各国的普遍关注。影响太阳能光伏发电的因素很多,比如当地的太阳能资源、光伏电池方阵的布置、系统的并网方式,因此必须对光伏发电进行系统的研究。本文首先分析了我国的太阳能资源分布状况,对适宜进行太阳能利用的地区进行了研究。然后研究了太阳能辐射原理,建立了光伏方阵倾斜面上的太阳辐射量工程模型。接着从光伏发电原理开始,对光伏并网发电系统进行了系统的研究。主要研究了光伏方阵的倾角、间距对光伏发电系统的影响,提出光伏方阵最佳倾角的设计应结合各月的太阳辐射量情况和当地电网的用电高峰；研究了光伏发电系统的发电量计算方法和不同容量光伏发电系统的并网方式等。最后结合嘉善县机关事业单位用房1.45MW屋顶光伏发电示范项目,举例分析了光伏并网发电技术在实际工程中的应用。光伏并网发电是光伏发电的发展方向,必将得到快速发展。更多还原

【Abstract】 With the severe problems of energy crisis and environmental pollution, it’s necessary to develop the clean renewable energy resources. The solar energy is one of the resources which are surely the cleanest, the most practical and the most promising to be developed in large scale. In the application of solar energy, photovoltaic (PV) generation is a major mode which has already received wide attention.There are many factors affecting the photovoltaic grid generated by solar energy, such as the local solar energy resource, the arrangement of the photovoltaic battery array, and the grid way of the system. Hence, the photovoltaic grid generation should be studied systematically.This paper first analyzes the distribution of solar energy resource in China, and makes a research on the areas suitable for using solar energy. Then the paper studies the radiation theory of the solar energy, and establishes the radiation quantity of the sun on the slope of PV array. Next, starting from the theory of PV generation, a systematic study is made on the PV grid generation system. The study is mainly about the influence of the dip angle and space separation of the PV array. It is suggested that the best angle of the PV array should be designed according to the monthly radiation quantity of the sun and the local power utilization peak. Further research is made on the computational method of the generated energy under the PV generation system and the grid ways of the PV generation systems with different volumes. Final ly, based on the pilot project of the 1.45-MW- roof- PV-generation on the government occupancies in Jiashan, the application of the PV grid generation in the practical projects is discussed with examples.Photovoltaic (PV) grid generation is the major direction and is destined to develop fast.更多还原