10kV光伏并网发电系统设计研究

发布时间：2018-04-25 14:42

本文选题：光伏并网 + 光伏组件　；参考：《山东大学》2015年硕士论文

【摘要】：在生态环境恶化、气候变暖、人们环保意识日益增强和全球资源消费日益紧张的大环境下,太阳能光伏产业必将成为可再生能源领域的一支主力军。随着光伏产业的发展,光伏发电市场竞争也日益激烈,特别是欧洲、美国、中国和日本等国家和地区在光伏领域的投资增长迅速,发电能源的份额中光伏的部分越来越大,并将逐渐取代化石能源的地位成为电力的主要来源。但是光伏发电的发展在国内却滞后于国外,《中国新能源政策(2012)》白皮书提出：到2015年,中国建成的光伏发电装机容量将达到2100万kW以上,并且根据国家能源局发布2015年上半年光伏发电建设简况：截至2015年6月底,光伏电站共3007万千瓦,分布式光伏为571万千瓦,全国光伏发电装机容量达到3578万千瓦。但是目前光伏产业现状急需改善,制度层面上,缺乏光伏并网全方位、全过程的行业标准、管理细则及政策法规,并且并网价格的调控也不完善；技术层面上,光伏产业发展所急需攻克的新技术、新装备、新材料等方面也存在很大发展空间。本文以山东成武地区为例,重点研究20MW光伏发电系统在接入lOkV电压等级电网的设计方案。论文以光伏并网发电系统为研究对象,介绍了光伏发电背景及其现状和原理,论述了并网光伏电源的技术特点,分析了分布式光伏系统的结构,及光伏组件、逆变器、最大功率点跟踪控制,然后分别对光伏组件的选型、光伏阵列的运行方式、逆变器的选型、方阵接线方案、光伏并网系统接入电网、光伏电池的散热及其光伏电站的无功补偿进行了研究设计,对光伏电站的经济社会效益进行了分析。最后对全文进行总结,并结合现在的研究对下一步的研究工作进行展望。
[Abstract]:With the deterioration of ecological environment, the warming of climate, the increasing awareness of environmental protection and the increasingly tight consumption of global resources, the solar photovoltaic industry will become a major force in the field of renewable energy. With the development of photovoltaic industry, the competition of photovoltaic power generation market is becoming increasingly fierce, especially in Europe, the United States, China and Japan and other countries and regions in the field of photovoltaic investment is growing rapidly, the share of power generation energy photovoltaic part of the growing. And will gradually replace the status of fossil energy as the main source of electricity. However, the development of photovoltaic power generation lags behind that of foreign countries. The white paper "China's New Energy Policy (2012)" proposes that by 2015, the installed capacity of photovoltaic power generation in China will reach more than 21 million kW. And according to the National Energy Administration, the first half of 2015 photovoltaic construction profile: by the end of June 2015, photovoltaic power plants a total of 3007 million kilowatts, distributed photovoltaic 571 million kilowatts, the installed capacity of national photovoltaic generation reached 3578 million kilowatts. However, the current situation of photovoltaic industry is in urgent need of improvement. At the system level, there is a lack of all aspects of photovoltaic grid-connected, the whole process of industry standards, management rules and policies and regulations, and the regulation of grid-connected prices is not perfect. The development of photovoltaic industry is in urgent need of new technology, new equipment, new materials and so on. Taking Chengwu area of Shandong Province as an example, this paper focuses on the design scheme of 20MW photovoltaic power system connected to lOkV voltage grade grid. This paper takes photovoltaic grid-connected generation system as the research object, introduces the background, current situation and principle of photovoltaic power generation, discusses the technical characteristics of grid-connected photovoltaic power supply, and analyzes the structure of distributed photovoltaic system, photovoltaic module and inverter. The maximum power point tracking control is followed by the selection of photovoltaic modules, the operation mode of photovoltaic arrays, the selection of inverters, the connection scheme of square arrays, and the connection of photovoltaic grid-connected systems to the power grid. The heat dissipation of photovoltaic cell and the reactive power compensation of photovoltaic power station are studied and designed, and the economic and social benefits of photovoltaic power station are analyzed. Finally, the full text is summarized, and the future research work is prospected.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM615

【二级参考文献】