摘要
遵循系统工程设计理念,太阳方位跟踪装置融入沙漠地区并网光伏发电系统中进行设计。光伏发电系统包括ZigBee无线网络连结的多个光伏发电子系统、TD-SCDMA公网和远程监控中心,跟踪装置基于天气、天文和光伏阵列输出功率的复合跟踪机制。远程监控中心设定跟踪装置的晴、阴、雨工作模式和晴天模式下的粗细跟踪精度;阴雨状态时采用天文跟踪并实施开环跟踪控制,晴天则以太阳电池板的输出功率为依据进行闭环跟踪控制,解决光电跟踪易受云层干扰和风沙环境下可用性欠佳的难题;跟踪装置的机械传动应用步进电机及步距角细分技术。
Following the idea of system engineering design, the design of solar azimuth tracking device should be combined with characteristics of grid-connected PV power system in desert region. PV power generation system includes a plurality of PV subsystems linked by a ZigBee wireless network, TD-SCDMA public network and a remote monitoring center. Tracking device is based on composite tracking mechanism of weather, astronomy and PV power output. Working mode and tracking precision of the tracking device are set by the remote monitoring center. According to the weather condition, the different tracking control method are used to solve difficult problem of PV tracking being vulnerable to the cloud interference and poor availability of sand environment. Stepper motor and stepper angle fraction technique were applied in the mechanical transmission of tracking device.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2013年第10期1762-1767,共6页
Acta Energiae Solaris Sinica
基金
杭州市萧山区科学技术局攻关项目(2009112)
