Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
自动跟踪槽式线聚焦太阳能集热器研究 | |
Alternative Title | STUDY ON THE AUTOMATIC TRACKING PARABOLIC TROUGH LINE-FOCUSING SOLAR COLLECTOR |
陈维 | |
Thesis Advisor | 李戬洪 |
2003 | |
Degree Grantor | 中国科学院广州能源研究所 |
Place of Conferral | 广州能源研究所 |
Degree Name | 硕士 |
Degree Discipline | 热能工程 |
Keyword | 槽式线聚焦 太阳能集热器 跟踪控制系统 |
Abstract | 本文对槽式线聚焦太阳能集热器进行了研究,通过建立的晴天模型,借助计算机,使用Matlab程序,对槽式线聚焦集热器几种跟踪方式的光学性能进行了研究,作出了晴天模型下广州地区在不同节令时的辐照度变化图以及广州和北京地区一年中日辐照量变化图,分析图像和数据,对几种跟踪方式的光学性能以及纬度对各种跟踪方式光学性能的影响进行了分析、研究,为我们实验中的跟踪方式的选择提供了理论依据;同时太阳能利用中的几种跟踪控制方式:开环、闭环、混合控制,进行了研究,得到广州地区不同节令时,南北水平轴跟踪时跟踪角和太阳时角间的关系图像,着重分析了此时采取混合跟踪的可行性和适用性。对几种跟踪控制方式的优缺点进行了分析和总结,分析了他们的特点和适用性。在理论研究的基础上还进行了实验研究,首先对将要作为传感器的光敏电阻的性能进行了研究,然后设计建成了一台南北水平布置东西转动跟踪的抛物柱面槽式线聚焦太阳能集热器,采用开环和闭环相结合的混合跟踪控制方式对集热器进行全自动的跟踪控制。最后通过对跟踪精度和集热性能进行了实验测试,对实验结果进行了分析和讨论,可以认为系统取得理想效果。 |
Other Abstract | By applying the model that has been built in this paper, and by using MATLAB to deal with the data, the figures of Irradiance variation different solar terms in Guangzhou and Variety of day beam irradiation for different tracking modes in Guangzhou and Beijing can be worked out. Optical performance analysis for parabolic-trough focusing collector with several tracking modes is accomplished. A few of common problems met in work is discussed. This paper sorts tracker controller methodologies in utilization of solar energy into close loop, open loop, and hybrid. By relations between hour angle and the tracking angle of several tracking modes with one axis, selecting for controller methodologies of several tracking modes with one axis are acquired. By using MATLAB to deal with data, tlie figures of relations between hour angel and tlie tracking angle of horizontal N/S tracking can be worked out, and at this time feasibility and applicability of hybrid tracking control system are analyzed. Merits and demerit of several tracker controller methodologies are studied and summarized, and characteristic and applicability of them are researched. In the experimental study, some light-dependent resistors that had been used in tlie control system were studied, and a parabolic-trough system of horizontal N/S tracking mode was also constructed and study. This new device has adopted the hybrid control mode .At last from those data of the experiment the device performance is close to theoretic expects. |
Pages | 59 |
Language | 中文 |
Document Type | 学位论文 |
Identifier | http://ir.giec.ac.cn/handle/344007/3863 |
Collection | 中国科学院广州能源研究所 |
Recommended Citation GB/T 7714 | 陈维. 自动跟踪槽式线聚焦太阳能集热器研究[D]. 广州能源研究所. 中国科学院广州能源研究所,2003. |
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