Design of Self-powered Heliostat in Concentrating Solar Tower Power Plant
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摘要: 设计了一种应用于塔式太阳能热发电聚光系统的具有自主供电和智能跟踪功能的定日镜.该定日镜采用小面积的反射镜面, 具有高度角和方位角二维转动功能, 并采用低功耗的微控制器实现对太阳实时有效地跟踪, 基于无线技术实现定日镜控制器与中央服务器的无线通讯, 采用太阳能光伏组件和可充电电池实现定日镜两轴电机的功率驱动和持续运转, 并进一步优化定日镜的间歇式跟踪, 以保证整个系统低功耗运行.通过设计分析和仿真验证, 该系统能实现最大3 m2镜面的定日镜的自主式供电和智能跟踪.Abstract: This paper proposed a small size heliostat that was self-powered and realized zenith-azimuth sun-tracking intelligently. It implemented the real-time and efficient track of the sun with the low-power microcontroller, and had wireless communication between the microcontroller and the central server based on wireless technology. The two-axis motors of heliostats achieved power-driving and sustainable operation with PV modules and rechargeable batteries. Moreover, the interval sun-tracking of the heliostat was optimized to guarantee the system operating in the low-power state. Through theoretical analysis and simulation, self-powered and intelligent-tracking properties of the maximum area heliostat with a mirror of3 m2 were validated.
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Keywords:
- solar tower power plant /
- heliostat /
- self-powered /
- intelligent-tracking
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[1] PAVLOVI'C T M, RADONJI'C I S, et al.A review of concentrating solar power plants in the world and their potential use in Serbia[J].Renewable and Sustainable Energy Reviews, 2012, 16 (6) :3891-3902.
[2] YANG M L, YANG X X, YANG X P, et al.Heat transfer enhancement and performance of the molten salt receiver of a solar power tower[J].Applied Energy, 2010, 87 (9) :2808-2811.
[3] 王昱涵, 余小孔.定日镜反射板力学模型及设计方法[J].太阳能学报, 2011, 32 (11) :1636-1639.WANG Yu-han, YU Xiao-kong.Mechanical model and design method for reflector plate of heliostat[J].Solar Energy, 2011, 32 (11) :1636-1639. (in Chinese) [4] 马建华.塔式定日镜跟踪控制系统的研究[D].杭州:杭州电子科技大学机械电子工程学院, 2010.MA Jian-hua.Study on a tracking control system for tower heliostats[D].Hangzhou:Department of Mechanical and Electronic Engineering, Hangzhou Dianzi University, 2010. (in Chinese) [5] 马佩杰, 汪知恩.利用小镜阵列聚光太阳能系统的研究[J].上海电力学院学报, 2010, 26 (6) :555-558.MA Pei-jie, WANG Zhi-en.Research on solar concentrating systems using minimirror array[J].Journal of Shanghai University of Electric Power, 2010, 26 (6) :555-558. (in Chinese) [6] 张磊, 胡永刚.一种Zigbee网络群控聚光光伏系统设计[J].皖西学院学报, 2011, 27 (5) :76-79.ZHANG Lei, HU Yong-gang.Design of a kind of group control CPV system based on Zigbee network[J].Journal of West Anhui University, 2011, 27 (5) :76-79. (in Chinese) [7] 郭铁铮, 刘德有, 钱艳平, 等.基于DSP的定日镜跟踪控制系统研究[J].太阳能学报, 2010, 31 (1) :5-11.GUO Tie-zheng, LIU De-you, QIAN Yan-ping, et al.Study on tracking control system of heliostat based on a DSP-controlled[J].Solar Energy, 2010, 31 (1) :5-11. (in Chinese) [8] 张闯, 吕东辉, 顼超静, 等.太阳实时位置计算及在图像光照方向中的应用[J].光电测试技术, 2010, 33 (11) :87-93.ZHANG Chuang, LDong-hui, XU Chao-jing, et al.Computation for solar real-time position and its application in illuminant direction of image[J].Electronic Measurement Technology, 2010, 33 (11) :87-93. (in Chinese)
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