太阳能微逆变器效率优化设计

发布时间：2018-05-11 17:59

本文选题：太阳能微逆变器 + 效率优化　；参考：《济南大学》2014年硕士论文

【摘要】：现如今，随着资源和能源越来越紧缺，可再生资源的充分开发显得越来越重要。太阳能微逆变器是可再生资源利用的一个重要手段。再加上光伏产业在国外受阻，国家有意扩大国内市场的背景下，高效率太阳能微逆变器的设计是时下科研热点。本文是对太阳能微逆变器进行效率优化设计，突破了传统的太阳能逆变器的设计方法。首先从太阳能微逆变器的整体设计方案上入手，从原理上分析如何设计方案能使太阳能微逆变器具有最大的效率。结合MPPT（最大效率点追踪）和PLL（锁相环）这两部分，采用PI算法，获得具体的设计方案。然后，对太阳能微逆变器的硬件电路设计，从硬件的角度讲解如何提高太阳能微逆变器的效率。先描述硬件电路框图，整体把握硬件电路。然后把电路分为交错反激式DC/DC电路、DC/AC电路、滤波电路、控制芯片电路、电路载波电路，并一一进行讲解。结合硬件模块设计，设计出软件程序模块。首先是主程序设计，主要靠虚拟机和中断实现的。然后是PWM程序设计和SPWM程序设计。最后介绍MPPT模块和PLL模块的程序设计的大体思路，以方便程序的编写。在效率优化设计的过程中有两种仿真过程：Proteus仿真和SIMULINK仿真。Proteus仿真验证的是软件设计，SIMULINK仿真验证的是硬件设计。仿真成功后，设计制作电路板，进行软硬件调试，分析实物的实验结果，得出太阳能微逆变器的效率。总结了论文的主要研究工作，，对太阳能微逆变器的效率优化设计进行了展望，提出下一步工作计划。
[Abstract]:Nowadays, with the shortage of resources and energy, the full exploitation of renewable resources becomes more and more important. Solar microinverter is an important means of renewable resource utilization. In addition, the photovoltaic industry is blocked in foreign countries, the country intends to expand the domestic market, the design of high-efficiency solar micro-inverters is a hot research topic. In this paper, the efficiency optimization design of solar micro inverter is carried out, which breaks through the traditional design method of solar energy inverter. Firstly, the whole design scheme of solar micro inverter is introduced, and how to design the scheme to maximize the efficiency of solar micro inverter is analyzed in principle. Combining MPPT (maximum efficiency Point tracing) and PLL (Phase locked Loop), a specific design scheme is obtained by using Pi algorithm. Then, the hardware circuit of solar micro inverter is designed to explain how to improve the efficiency of solar micro inverter from the point of view of hardware. First describe the hardware circuit block diagram, the overall grasp of the hardware circuit. Then the circuit is divided into interleaved flyback DC/DC circuit and DC / AC circuit, filter circuit, control chip circuit, circuit carrier circuit, and explain them one by one. Combined with the design of hardware module, the software program module is designed. First is the main program design, mainly by the virtual machine and interrupt to achieve. Then there is PWM programming and SPWM programming. At last, it introduces the general idea of MPPT module and PLL module program design, in order to facilitate the programming. In the process of efficiency optimization design, there are two kinds of simulation processes: Proteus simulation and SIMULINK simulation. Proteus simulation verifies the software design and the hardware design. After the successful simulation, the circuit board is designed and fabricated, the hardware and software are debugged, the experimental results are analyzed, and the efficiency of the solar microinverter is obtained. The main research work of this paper is summarized, the efficiency optimization design of solar micro inverter is prospected, and the next work plan is put forward.
【学位授予单位】：济南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM464

【参考文献】