户用光伏电站监控系统的研究

发布时间：2018-07-12 17:31

本文选题：户用光伏电站 + 监控系统　；参考：《曲阜师范大学》2014年硕士论文

【摘要】：太阳能是资源最丰富的可再生能源之一，光伏发电技术为利用太阳能提供了一个广阔的舞台。与核电、火电相比，光伏发电幅员辽阔，分布不集中，不利于监测数据和统计数据。为了避免查看分布式光伏电站信息所带来的人力物力财力浪费，保证光伏电站安全可靠运行，研究光伏电站监控系统具有重要意义。本文针对小型户用光伏电站项目，设计了一套户用光伏电站监控系统，利用Delphi7.0软件设计上位机人机交互界面，对现场采集的数据进行显示、统计和分类，并对故障信息做出报警提示，确保户用光伏电站的安全运行。使用SQL Server2000数据库存储下位机传送给上位机的数据。本文主要工作如下：（1）阐述了本文的研究背景，，对国内外光伏电站监控系统的现状和发展做了具体分析，阐述了本文的重要意义。（2）介绍了开发环境和数据库的选取，确定了本文所研究的户用光伏电站监控系统的功能需求和特点，给出系统的功能模块图，建立了数据库系统。（3）开发各个功能模块的用户界面。（4）介绍了通信方式的选择，制定了Modbus通信协议，利用Delphi串行通信控件Spcomm设计系统的通信模块。（5）进行了系统功能性测试，实验结果表明，本文所开发的户用光伏电站监控系统达到了预期目的，可通过RS-485总线进行上下位机间通讯并实时显示在上位机监控界面中，验证了设计的正确性和可行性。
[Abstract]:Solar energy is one of the most abundant renewable energy, photovoltaic technology provides a broad stage for the use of solar energy. Compared with nuclear power and thermal power, photovoltaic power generation is vast and not concentrated, which is not conducive to monitoring data and statistical data. In order to avoid the waste of manpower, material and financial resources brought by the distributed photovoltaic power station information, and to ensure the safe and reliable operation of photovoltaic power station, it is of great significance to study the monitoring system of photovoltaic power station. In this paper, a monitoring system of household photovoltaic power station is designed for the small household photovoltaic power station project. The man-machine interface of upper computer is designed by Delphi 7.0 software, and the data collected in the field are displayed, counted and classified. The fault information is alerted to ensure the safe operation of the household photovoltaic power station. SQL Server 2000 database is used to store the data transferred from the lower computer to the upper computer. The main work of this paper is as follows: (1) the research background of this paper is described, and the current situation and development of photovoltaic power station monitoring system at home and abroad are analyzed concretely. The important significance of this paper is expounded. (2) the selection of development environment and database is introduced, the functional requirements and characteristics of the monitoring system of household photovoltaic power station studied in this paper are determined, and the function module diagram of the system is given. The database system is established. (3) the user interface of each functional module is developed. (4) the choice of communication mode is introduced, and the Modbus communication protocol is established. Using Delphi serial communication control Spcomm to design the communication module of the system. (5) the functional test of the system is carried out. The experimental results show that the monitoring system of the household photovoltaic power station developed in this paper has achieved the expected purpose. The communication between upper and lower computers can be carried out by RS-485 bus, and it can be displayed in the monitor interface of upper computer in real time. The correctness and feasibility of the design are verified.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM615;TP277

【参考文献】