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西部无电地区光伏发电系统设计及优化研究

发布时间:2018-11-18 16:35
【摘要】:太阳能光伏发电作为一种可持续的、清洁高效的能源发电技术,近年来得到广泛应用。光伏发电系统的装机容量逐年递增,其发电量占各类能源发电总量的比例亦呈上升趋势。在能源危机迫在眉睫,环境保护又备受关注的今天,各国把目光聚焦到这种可再生能源发电的开发利用上,并开始筹划光伏发电技术开发应用的长远规划,因此太阳能光伏发电成为当今重要的研究课题。 我国光伏发电技术发展迅速,其最广泛的应用是解决西部无电区居民基本生活用电的问题。由于西部无电区地理位置的特殊性,传统电网技术难以覆盖,然而这些地区的光照资源非常充足,光伏发电技术有广阔的应用空间。 本文从光伏发电原理入手,结合光伏发电在无电区的实际应用,提出以户用光伏发电和独立电站为代表的光伏发电系统两种方案,因地制宜的为无电区居民提供用电保障。通过分析青海省果洛藏族自治州久治、达日和班玛三县的无电区居民光伏发电的项目,并进行实地考察,进一步对光伏发电系统的规模进行规划设计,,并对设备进行选型。 本文重点是针对光电站建设时遇到的光伏发电系统控制室的选址问题进行优化,通过建立控制室选址模型,采用惩罚函数法对其约束条件进行处理,再引入基本粒子群优化算法,对其惯性权重进行改造,从而得到优化选址的最佳结果。优化问题由MATLAB软件编程实现。 本文结果可为光伏发电系统建设中的相关问题提供科学依据。
[Abstract]:Solar photovoltaic power generation as a sustainable, clean and efficient energy generation technology, has been widely used in recent years. The installed capacity of photovoltaic power generation system is increasing year by year, and the proportion of power generation in all kinds of energy generation is also rising. Today, when the energy crisis is imminent and environmental protection is concerned, countries focus on the development and utilization of this renewable energy generation, and begin to plan the long-term planning for the development and application of photovoltaic power generation technology. Therefore, solar photovoltaic power generation has become an important research topic. Photovoltaic power generation technology is developing rapidly in China, and its most extensive application is to solve the problem of basic living electricity consumption of residents in the western areas without electricity. Because of the particularity of the geographical location of the western no-electricity area, the traditional power grid technology is difficult to cover. However, the illumination resources in these areas are very sufficient, and the photovoltaic power generation technology has a broad application space. Based on the principle of photovoltaic power generation and the practical application of photovoltaic power generation in no-electricity area, this paper puts forward two schemes of photovoltaic power generation system, such as household photovoltaic power generation and independent power station, which can provide electricity security for residents in no-electricity area according to local conditions. Based on the analysis of the photovoltaic power generation projects of residents in the three counties of Kuo Luo Tibetan Autonomous Prefecture, Qinghai Province, Dayi and Bamma counties, and field investigation, the scale of photovoltaic power generation system is further planned and designed, and the equipment is selected. The emphasis of this paper is to optimize the location of the control room of photovoltaic power system in the construction of photovoltaic power plant, and to deal with the constraint condition by using the penalty function method by establishing the location model of the control room. Then the basic particle swarm optimization algorithm is introduced to improve the inertia weight, and the optimal result is obtained. The optimization problem is realized by MATLAB software programming. The results of this paper can provide scientific basis for the related problems in the construction of photovoltaic power system.
【学位授予单位】:河北工程大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TM615

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