宁夏地区商场屋顶光伏发电系统设计及仿真研究

发布时间：2018-07-26 08:33

【摘要】：我国建筑能耗占总能耗的比例居高不下,建筑节能任务迫在眉睫,光伏发电与建筑结合是建筑节能的有效措施.宁夏地区生态环境相对脆弱,环境改善压力较大,地理条件和自然条件都适合光伏产业的发展,面对宁夏地区城市商业建筑光伏发电系统发展应用滞后于野外光伏并网电站和农业光伏温室的现实,设计适用于本地区城市商业建筑的光伏发电系统.首先,研究宁夏地区地面光伏发电系统和建筑光伏发电系统的应用现状,提出宁夏地区城市商业建筑光伏发展的必要性和城市建筑屋顶光伏发电系统的设计原则,并实际测量太阳能电池板在不同光照强度、不同温度、不同倾斜角度、不同季节、串联和并联条件下的特性曲线,为光伏系统的设计奠定基础.其次,基于城市建筑屋顶光伏发电系统设计原则,对银川某商场屋顶光伏发电系统进行总体设计,设计内容主要包括:光伏阵列倾角、接线方案、直流和交流汇流箱、直流防雷配电柜、计量表、监控系统、逆变器及系统布线设计的选择方案,并针对宁夏地区的太阳辐射特征基于光伏设计软件对该地区商场屋顶光伏系统的光伏方阵做出特定时间和特定倾角的改进,并对所设计的系统进行仿真研究.最后,建立光伏发电系统的综合效益指标评价体系,对经济效益和环境效益建模,并提出净现值、回收期和内部收益率三个经济效益评估指标,以设计的商场屋顶光伏发电系统为例,分析其综合效益.结果表明:宁夏地区具有发展商场屋顶光伏的必要性和可行性;针对该地区的太阳辐射特征对所设计的商场屋顶光伏系统的光伏方阵做出特定时间和特定倾角的调整后,发电量有明显的提高;该地区建筑与光伏结合中,商场与光伏结合获得的经济效益较佳.
[Abstract]:The proportion of building energy consumption to total energy consumption is high in our country, and the task of building energy conservation is urgent. The combination of photovoltaic power generation and building is an effective measure for building energy conservation. The ecological environment in Ningxia is relatively fragile, the pressure of environmental improvement is great, and both geographical and natural conditions are suitable for the development of photovoltaic industry. In the face of the fact that the development and application of photovoltaic power system in urban commercial buildings in Ningxia region lags behind those in field photovoltaic grid-connected power stations and agricultural photovoltaic greenhouses, a photovoltaic power generation system suitable for urban commercial buildings in this region is designed. Firstly, the paper studies the application status of ground photovoltaic system and building photovoltaic system in Ningxia area, and puts forward the necessity of photovoltaic development of urban commercial buildings in Ningxia area and the design principles of urban building roof photovoltaic power generation system. The characteristic curves of solar panels under different illumination intensity, different temperature, different tilt angle, different season, series and parallel connection were measured, which laid a foundation for the design of photovoltaic system. Secondly, based on the design principles of urban building roof photovoltaic power generation system, the overall design of a shopping mall roof photovoltaic power generation system in Yinchuan, including: photovoltaic array inclination, wiring scheme, DC and AC confluence box, the design content includes: photovoltaic array inclination angle, connection scheme, DC and AC confluence box. Selection of DC Lightning proof Distribution Cabinet, Meter, Monitoring system, Inverter and system wiring Design, According to the solar radiation characteristics in Ningxia region, the solar array of the rooftop photovoltaic system in this area is improved by the software of photovoltaic design, and the simulation of the designed system is carried out. Finally, the comprehensive benefit index evaluation system of photovoltaic power generation system is established, and the economic benefits and environmental benefits are modeled, and three economic benefit evaluation indexes, net present value, recovery period and internal rate of return, are put forward. Taking the photovoltaic power generation system of shopping mall roof as an example, the comprehensive benefits of the system are analyzed. The results show that it is necessary and feasible to develop rooftop photovoltaic system in Ningxia area, and the solar radiation characteristics of this area can be used to adjust the photovoltaic array of the designed photovoltaic system on the shopping mall roof for a specific time and inclination. In this area, the combination of building and photovoltaic, the combination of market and photovoltaic has better economic benefits.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM615

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