光伏发电系统研究及其对农村扶贫的积极影响

发布时间：2018-01-22 23:53

本文关键词： 独立PV发电 MPPT控制技术逆变 DC/DC变换 DC/AC变换　出处：《湖北工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：能源问题随着世界的发展逐渐成为当今世界主要的需要我们去解决的问题。不可再生能源像煤,石油等,都有用完的一天,而且现在环境污染日益严重。面对这样严峻的问题,我们就不得不去改变我们的能源结构,去发现和发明新的能源来替代现在使用的能源。人们开始逐渐对可再生能源的课题的开发、与研究越发的被人们看重了。太阳能受到大家喜爱的是因为它是一种可再生能源,有清洁,经济,覆盖量大等的优点。关于光伏发电技术的研究和学习成为了又一个被世界都关注的领域。本文主要通过对单相独立发电系统的整体结构的分析,使用MPPT技术或者是改进的技术使太阳能光伏电池通过控制能够实现其理想的结果。对于蓄电池组的控制是依照蓄电池的输出特性以及相关的自身性质,实行对于蓄电池组的充放电安全控制。在逆变器这个模块中,本文通过对整个发电系统的主要电路进行拓扑,从而得到其拓扑电路,采用升压斩波电路Boost中高频升压变换和单相全桥逆变电路的DC/AC工频逆变变换方式。然后通过这些独立发电系统的中各模块的拓扑结构,分模块建立数学模型、选择控制的策略、确定参数后进行系统的详细分析,通过Matlab软件对整个系统进行了仿真,对仿真的结果进行认真仔细的分析后,我们发现,这个系统基本达到了我们设计的要求,同时保证了单相独立发电系统的可靠性和经济性。
[Abstract]:With the development of the world, the energy problem has gradually become the main problem that we need to solve. Non-renewable energy, such as coal, oil and so on, are used up one day. And now the environmental pollution is becoming more and more serious. In the face of such a serious problem, we have to change our energy structure. To find and invent new sources of energy to replace the energy used today, people are beginning to develop the subject of renewable energy. Solar energy is popular because it is a renewable energy source, clean and economical. The advantages of large coverage. The research and study of photovoltaic power generation technology has become another field of concern in the world. This paper mainly through the single-phase independent generation system of the overall structure of the analysis. The use of MPPT or improved technology to enable solar photovoltaic cells through control can achieve its desired results. For battery control is based on the battery output characteristics and related properties. In the inverter module, the topology of the main circuit of the whole generation system is carried out, and the topology circuit is obtained. The high frequency boost converter in Boost and the DC/AC inverter mode in single-phase full-bridge inverter circuit are adopted. Then the topology of each module in these independent generation systems is adopted. The mathematical model is established, the control strategy is selected, the parameters are determined and the system is analyzed in detail. The whole system is simulated by Matlab software. After careful analysis of the simulation results, we find that the system basically meets the requirements of our design and ensures the reliability and economy of the single-phase independent generation system.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM615

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