摘要
提出基于可编程逻辑控制器PLC的太阳能跟踪系统,使光伏模块能实时跟踪太阳光照,从而最大限度地获得太阳能。系统的硬件有PLC输入/输出端口的配置、信号处理单元、光敏电阻光强法比较电路和开关电源的设计;系统的软件有PLC的控制和监控程序,基于Visual Basic 6.0软件平台开发的PC机监控和数据采集程序。基于PLC的太阳能跟踪系统既适用于独立的太阳能发电设备,也适用于串、并联的大型太阳能光伏发电系统的现场总线控制。
The sun-tracking system based on the programmable Logic Controller was studied in this paper. The photo-voltaic module in the system can track the sun simultaneously, then the maximum sun energy will be obtained. The whole system design includes two parts： hardware design and software design. The PLC I/O configuration, signal processing unit, photo-resistor intensity comparator circuit and switching mode power supply were designed in the hardware consideration, while the PLC control , the monitoring program, the PC monitoring and the data-handling program which developed in the software platform of Visual Basic 6.0 were concerned in the software design. The sun-tracking system based on PLC will not only be employed as a stand-alone device, but also be used as field-bus control in the serially or parallel connected PV Array.
出处
《可再生能源》
CAS
2008年第3期60-62,共3页
Renewable Energy Resources
基金
国家自然科学基金项目(50667002)
新疆大学青年科研启动基金项目
关键词
太阳能
跟踪系统
PLC
软件监控
数据采集
sun energy
tracking system
PLC
software supervisory
data handling
