太阳能电站跟踪控制器研究

Tracking Controller in Solar Power Station

跟踪式光伏发电技术是提升光伏利用效率的重要技术。分析了多种跟踪式光伏发电跟踪技术,提出一种基于授时的跟踪式光伏发电控制器,根据时间换算出太阳在空中位置,控制太阳能电池板追踪太阳。控制器采用两级分布式控制设计,中央控制器通过TCP/IP网络向区域控制器授时,区域控制器通过IRIG-B码向独立控制器传送时间信息,实现整个电站的跟踪控制。同时介绍了研制评估系统、系统的各组件移植操作系统和开发配套软件的过程。

Tracking technology is important to improve efficiency of PV.After analyzing many track-ing technologies of PV,this paper presents a tracking controller based on timing system,which can calcu-late position of the sun in the sky by time and control the tracking solar battery. This controller is de-signed with two-stage distributing control to realize tracking and control of the whole power station:cen-tral controller sends timing information to regional controller by TCP/IP, and regional controller sends timing information to independent controller by IRIG-B.This paper also introduces the process of develo-ping evaluation system,operating system for grafting each components and supporting software.