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A Study and Design of Solar Tracking Control Systems for the Development of Information System

Author: FangJianGang
Tutor: ChenTianHuang
School: Wuhan University of Technology
Course: Computer Science and Technology
Keywords: Solar tracking Embedded Systems MPPT (Maximum Power Point Tracking) PV array
CLC: TP273
Type: Master's thesis
Year: 2011
Downloads: 443
Quote: 4
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Abstract


With limited fossil energy on Earth continue to mining, the energy crisis has become one of the biggest problems facing the world of humanity today, while the use of fossil fuels, releasing large amounts of carbon compounds caused by global warming, the destruction of the natural ecological environment, seriously jeopardize the survival and development of mankind, and the inevitable road to solve these problems is the development and use of new non-polluting energy. Therefore, how to develop good new green recycling energy is an important research topic related to human survival and development. Solar energy as an inexhaustible, inexhaustible green natural energy, it is the development and application of a broad development prospects and far-reaching significance. Currently, one of the ways of effective utilization of solar energy is the use of photovoltaic technology to convert solar energy into electrical energy. Solar energy collection and conversion of electrical energy is an important key links of photovoltaic technology to improve the efficiency of these technical aspects for the use of solar energy is very valuable, however, in the solar energy collected on the uncertainty due to the intensity of the sunlight, light intermittent, and the impact of seasonal weather conditions and other characteristics, to the collection of solar energy has brought considerable difficulty, using the traditional fixed solar collection efficiency is relatively low. The theoretical analysis shows that comprehensive tracking the use of solar technology, 35% of the solar energy absorption efficiency can be improved compared to using fixed track case. By light and temperature affect the energy aspects of solar energy conversion, cell array, causing unstable output power variation, solar energy could not be fully converted into electrical energy, maximum power always keep the battery array maximum power point tracking (MPPT) technology output, thereby improving the conversion efficiency. Study the basic principles of solar tracking control system at home and abroad, the development and design of a S3C2410X microprocessor-based embedded platform for solar tracking control system. Thesis work mainly includes the following aspects: (1) analysis of the development status of today's solar energy development and utilization of various solar tracking technology to improve the efficiency of tracking the principle of tracking technology to improve the design based embedded solar tracking control system design. (2) for the sensing unit of the solar tracking control system design, select the corresponding function of the sensing element, and the sensing signal sampling circuit design, to improve the accuracy of the sensor signal samples. (3) selection of S3C2410X as the core control chip, according to the system control features of the hardware design of the control unit and the maximum power tracking unit circuit design, and stepper motor drive unit hardware design. System the extended external 4x4 keypad and LCD display, and the system has good interactive interface, you can easily set via the keyboard. (4) the corresponding software design, hardware design based on functional design requirements to achieve improved solar tracking algorithm.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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