塔式太阳能热发电站中的定日镜跟踪装置研制  

Development of Heliostat Tracking Device in Solar Power Tower Plant

作　　者：郭铁铮[1] 刘德有[1] 钱艳平[1] 陈强 卞新高[1] 郭苏[1] 

机构地区：[1]河海大学动力工程系,江苏省南京市210098 [2]南京中材天成新能源有限公司,江苏省南京市210012

出　　处：《中国电机工程学报》2008年第35期114-119,共6页Proceedings of the CSEE

基　　金：国家863高技术基金项目(2006AA050104)~~

摘　　要：针对塔式太阳能热发电站中定日镜跟踪装置通常采用开环控制方式,存在跟踪精度低、累积误差大等缺点,该文介绍了一种采用双轴传动机构的新型跟踪装置硬件设计、工作原理和控制策略。该装置的控制系统采用开–闭环结合的控制方式,以DSP(TMS320F2812)作为控制器,与发送太阳位置信息和控制命令的监控计算机实时通信。实验结果表明,该跟踪装置设计合理,运行稳定,反应速度快,实时跟踪精度优于3.5mrad,超调量小于3.2%,实现了定日镜的实时精准跟踪。The control mode of open loop is generally used for heliostat tracking devices in solar power tower plants, which has the shortcomings of, e.g., low tracking accuracy, high accumulation errors etc. For that, a new type of tracking device using double-axes drive gear is introduced in this paper, including the hardware design, work principle and control strategy. The combination control mode of open and closed loop is adopted for the control system of the tracking device, using DSP （TMS320F2812） as its controller, communicates with the monitor computer which sends the solar position data and control commands. From the experimental results, the new tracking device has the advantages of reasonable design, steady operation and rapid reaction, besides, the real-time tracking accuracy can be higher than 3.5 mrad and overshoot is less than 3.2%, which make heliostat be able to realize the real-time and accurate tracking.

关 键 词：塔式太阳能热发电 定日镜 跟踪装置 数字信号 处理控制器 开-环结合 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] U469.5[自动化与计算机技术—计算机科学与技术]