1、 I 毕业设计(论文) 家用光伏发电家用光伏发电监控系统监控系统研究研究 学院(系) : 自动化学院 专业班级: 电气工程 II 摘要 随着时代的发展和社会现代化的一步步前进,人类对能源的需求越来越多。如今, 新能源开发成为解决能源问题的根本途径。在人们对新能源的不断探索中,电能始终处 于举足轻重的地位。而太阳能光伏发电也正是新能源和可再生能源的重要组成部分。 由此,在光伏发电这一问题中,本文探究了家用光伏发电系统的结构、原理、能量 流管理的方法。我们采用 MCGS 小型工业平板电脑对 MPPT 太阳能控制器及 48VDC/220VAC 双向转换逆变器进行控制, 利用 MCGS 组态软件搭建了
2、系统界面, 选择 了通信接口方案并撰写光伏发电系统通信协议,连接硬件 DSP 进行调试。最终希望实现 对家用光伏发电系统中电压、电流输入输出量等的反映,呈现出一个便于用户操作的触 摸屏界面,并通过 Modbus 通讯协议实现与硬件的连接。 关键关键词词:太阳能、发电、工业平板、通信、控制 III Abstract With the development of the age and social modernization, a growing number of energy is demanded by peoples. Nowadays, the development of new
3、energy has become a fundamental way to solve the energy problem. In the course of the continuous exploration of new energy, electric energy always plays a decisive role. At the same time, the solar photovoltaic power generation is an important part of new energy and renewable energy. Thus, this pape
4、r explores the domestic photovoltaic power generation systems structure, theory and energy flowing management method for the issue of the photovoltaic power generation. We adopt MCGS small industrial panel PC to control MPPT solar controller and 48VDC/220VAC bidirectional conversion inverter. MCGS c
5、onfiguration software is used to build a system interface. We selected the communication interface program and writing PV system communication protocol. Then we connected hardware DSP to debug. Ultimately, this system are expected to reflect the home photovoltaic power systems voltage and current qu
6、antity of input and output and analyze simply about energy flow optimization method. It also will reflect a touch screen interface which is easy for handing and connect protocol and hardware according to the Modbus communication. Key Words:Solar energy, Power generation, Industrial panel PC, Communication, Control IV 目录 摘要 .II Abstract . III 目录 . IV 第 1 章 绪论 1 1.1 研究背景、目的和意义 . 1 1.2 国内外研究现状 . 1 1.3 本文主要研究内容 3 第 2 章 家用光伏发电系统概述 . 5 2.1 光伏发电系统的基本组成 5 2.2 光伏发电系统的原理概述 6 2.2.1 光伏电