一种采用PLC控制的极轴跟踪光伏发电阵列设计  

An PV Power Generation System Adapting Polar Axis Tracking Device Based on PLC

作　　者：王新[1] 华永明[1] 李小燕[1] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《能源技术》2010年第3期159-161,164,共4页Energy Technology

基　　金：江苏省博士后科研资助计划(0901024C);江苏省企业院士工作站(BM2009609)资助

摘　　要：基于旋转轴与极轴平行的光伏阵列机械支撑机构,研制了基于西门子PLC S7系列的太阳自动跟踪系统装置,该装置由PLC、继电器、开关电源、限位开关组成。采用Steca光伏并网逆变器对采用跟踪装置和固定安装的光伏阵列进行了并网及监控试验,并对发电量进行比较,试验和比较结果表明自动跟踪装置有较好的跟踪效果。Based on the PV array mechanical support mechanism whose rotation axis is parallel to the polar axis of the earth, the solar automatic tracking system was developed based on Siemens PLC S7 series, the device consist of the PLC, relays, switching power supply, limit switch component. The grid-connected inverter produced by Steca was used to do grid connected and monitoring experiments on photovoltaic arrays with tracking devices and the fixed installed one, and the generated electricity of them was compared. The comparison results show that the PV array with automatic tracking device has better effect.

关 键 词：极轴跟踪装置 PLC 并网逆变器 光伏发电系统 实验比较 

分 类 号：TM615[电气工程—电力系统及自动化]